Qsan XS5224D User Manual
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Qsan XS5224D User Manual

Xcubesan sanos 4.0
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Download this manual See also: Hardware Owner's Manual
XCubeSAN SANOS 4.0
User's Manual
Applicable Models:
XS5224D, XS5216D, XS5212D, XS5212S, XS5226D, XS5226S, XS3224D
XS3224S, XS3216D, XS3216S, XS3212D, XS3212S, XS3226D, XS3226S
QSAN Technology, Inc.
www.QSAN.com

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  • Page 1 XCubeSAN SANOS 4.0 User’s Manual Applicable Models: XS5224D, XS5216D, XS5212D, XS5212S, XS5226D, XS5226S, XS3224D XS3224S, XS3216D, XS3216S, XS3212D, XS3212S, XS3226D, XS3226S QSAN Technology, Inc. www.QSAN.com...
  • Page 2 Copyright © Copyright 2017 QSAN Technology, Inc. All rights reserved. No part of this document may be reproduced or transmitted without written permission from QSAN Technology, Inc. April 2017 This edition applies to QSAN XCubeSAN SANOS (SAN Operating System) 4.0. QSAN believes the information in this publication is accurate as of its publication date.

  • Page 3: Notices

    Information contained in this manual has been reviewed for accuracy. But it could include typographical errors or technical inaccuracies. Changes are made to the document periodically. These changes will be incorporated in new editions of the publication. QSAN may make improvements or changes in the products. All features, functionality, and product specifications are subject to change without prior notice or obligation.
  • Page 4 To illustrate them as completely as possible, the examples include the names of individuals, companies, brands, and products. All of these names are fictitious and any similarity to the names and addresses used by an actual business enterprise is entirely coincidental. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 5: Table Of Contents

    Table of Contents Notices ..........................i Preface ........................xviii About This Manual ........................xviii Related Documents ........................xviii Technical Support ........................xviii Information, Tip and Caution ......................xix Conventions ........................... xix SANOS Overview ..................... 1 1.1. Introduction to SANOS ....................... 1 1.1.1.
  • Page 6 Host Connectivity Overview ..................... 88 7.3. Configure iSCSI Connectivity ................... 90 7.3.1. Configure iSCSI Ports ..................90 7.3.2. Configure iSCSI Settings..................95 7.3.3. Configure iSCSI Targets ..................96 7.3.4. Configure iSCSI CHAP Accounts ..............100 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.
  • Page 7 7.3.5. Active Sessions ....................102 7.4. Configure Fibre Channel Connectivity ................104 7.4.1. Configure Fibre Channel Link Speed ............... 104 7.4.2. Configure Fibre Channel Topology ..............105 7.4.3. Configure Fibre Channel Targets ..............106 7.4.4. Clear Fibre Channel Counters ................107 Storage Management ..................
  • Page 8 11.3. Configure Auto Tiering Pools ..................216 11.3.1. Enable Auto Tiering License ................216 11.3.2. Create an Auto Tiering Pool ................216 11.3.3. List Auto Tiering Pools..................222 11.3.4. Operations on Auto Tiering Pools ..............225 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.
  • Page 9 11.3.5. Add a Tier (Disk Group) in an Auto Tiering Pool ..........227 11.3.6. Hot Spares in an Auto Tiering Pool ..............228 11.4. Configure Volumes ......................228 11.4.1. Create a Volume in an Auto Tiering Pool ............228 11.4.2. List Volumes and Operations on Volumes ............. 232 11.5.
  • Page 10 15.2. Online Customer Support ....................306 15.3. Accessing Product Updates ................... 310 15.4. Documentation Feedback ....................311 Appendix ........................312 Glossary and Acronym List ......................312 End-User License Agreement (EULA) ..................315 viii © Copyright 2017 QSAN Technology, Inc. All Right Reserved.
  • Page 11 Figures Figure 1-1 SANOS System Architecture .................... 1 Figure 1-2 SANOS System Architecture with Single Controller Configuration ......2 Figure 1-3 SANOS Storage Pool Architecture .................. 3 Figure 1-4 SANOS 4.0 Desktop Panel ....................4 Figure 2-1 Dual-controller Topology ....................17 Figure 3-1 QFinder Utility .........................
  • Page 12 Volume in Storage Architecture .................. 115 Figure 8-3 LUM Mappings in Storage Architecture ..............116 Figure 8-4 Hot Spares ........................118 Figure 8-5 Disks Function Submenu ..................... 118 Figure 8-6 List Disks ........................120 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.
  • Page 13 Figure 8-7 Disk Health Check ......................122 Figure 8-8 Set Dedicated Spare ..................... 122 Figure 8-9 Update Disk Firmware ....................123 Figure 8-10 More Information of Disk Drive ................... 124 Figure 8-11 S.M.A.R.T. Attributes of Disk Drive ................125 Figure 8-12 Pools Function Submenu .....................
  • Page 14 Figure 10-16 Another SSD Cache Pool is Created ................199 Figure 10-17 List SSD Cache Pools ....................200 Figure 10-18 SSD Cache Pool Column Descriptions ................ 200 Figure 10-19 SSDs Column Descriptions ..................201 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.
  • Page 15 Figure 10-20 Enabled Volume Column Descriptions ............... 201 Figure 10-21 Add / Remove SSDs from the SSD Cache Pool ............203 Figure 10-22 Add SSDs into the SSD Cache Pool................204 Figure 10-23 SSD Cache Function Submenu ..................205 Figure 10-24 SSD Cache Statistics ....................206 Figure 11-1 Auto Tiering Pool ......................
  • Page 16 Figure 12-45 Add Multipath in Remote Replication Step 2 .............. 279 Figure 12-46 Add Multipath in Remote Replication Step 3 .............. 280 Figure 12-47 List Multipath in Remote Replication Task ..............280 Figure 12-48 Add Path Connection ....................282 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.
  • Page 17 Figure 12-49 List Multiple Connections in Remote Replication Task Path ........282 Figure 12-50 Delete Path Connection ....................283 Figure 12-51 Local Clone Transfers to Remote Replication Diagram ..........284 Figure 12-52 List Source and Target Volumes for Local Clone ............285 Figure 12-53 Rebuild Clone Relationship Step 1 ................
  • Page 18 Table 10-1 The Relationship between System Memory and SSD Cache Capacity ....183 Table 10-2 SSD Cache Parameters ....................185 Table 10-3 I/O Type Table for SSD Read Cache ................193 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.
  • Page 19 Table 10-4 I/O Type Table for SSD Read-write Cache ..............194 Table 10-5 SSD Cache Statistics Descriptions................206 Table 11-1 SSD Cache vs. Auto Tiering ..................210 Table 11-2 Auto Tiering Pool Parameters ..................211 Table 11-3 Pool Column Descriptions ................... 222 Table 11-4 Disk Group Column Descriptions ................

  • Page 20: Preface

    White Papers  Application Notes  Technical Support Do you have any questions or need help trouble-shooting a problem? Please contact QSAN Support, we will reply to you as soon as possible.  Via the Web: https://qsan.com/support Via Telephone: +886-2-7720-2118 extension 136 ...

  • Page 21: Information, Tip And Caution

    Information, Tip and Caution This manual uses the following symbols to draw attention to important safety and operational information. INFORMATION: INFORMATION provides useful knowledge, definition, or terminology for reference. TIP: TIP provides helpful suggestions for performing tasks more effectively. CAUTION: CAUTION indicates that failure to take a specified action could result in damage to the system.
  • Page 22 / Slash Indicates all options or arguments. underline Indicates the default value. Example: [ a | b ] © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 23: Sanos Overview

    SANOS Overview SANOS (SAN Operating System) is QSAN’s proprietary SAN operating system and allows you to manage, monitor, and analyze the configuration and performance of your XCubeSAN series SAN storage system. This chapter provides an overview of the SANOS functionality and includes a brief explanation of storage terminology for you to be more familiar with the storage technologies used by the XCubeSAN system.

  • Page 24: Figure 1-2 Sanos System Architecture With Single Controller Configuration

    Base on LVM technology, it develops the features of auto tiering, thin provisioning, SSD cache and also data backup functions of snapshot, local clone, and remote replication. Upon LVM, QSOE (QSAN Storage Optimization Engine) which we are proud to develop, increases IOPS performance and overall system throughput. SANOS also supports several ©...

  • Page 25: Sanos Storage Pool Architecture

    1.1.2. SANOS Storage Pool Architecture QSAN storage pool supports a variety of 3.5”/2.5” SAS/NL-SAS HDD and 2.5” SAS/SATA SSD flash drives. Figure 1-3 shows the storage pool architecture. Several disk drives are combined together to form a “disk group”...

  • Page 26: Sanos 4.0 Functionality List

    If the local disk drives are not enough, QSAN expansion enclosures including disk drives can be added to increase storage capacity. There are host spares for standby if any disk drives in pools fail. Base on snapshot technology, the data backup features such as local clone and remote replications are also provided.
  • Page 27 Update firmware of head unit or enclosure unit(s).  Change operation mode of single or dual controller.   Blink UID (Unique Identifier) LEDs for locating the storage arrays. System reset to default, configuration backup, and volume restoration for maintenance ...

  • Page 28: Terminology

    Fast RAID Rebuild When executing rebuild, the Fast RAID Rebuild feature skips any partition of the volume where no write changes have occurred, it will focus only on the parts that have changed. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.
  • Page 29 A LUN (Logical Unit Number) is a unique identifier for designating an individual or collection of physical or virtual storage devices that execute I/O commands with a host computer, as defined by the SCSI (Small Computer System Interface) standard. iSCSI iSCSI (Internet SCSI) is a protocol which encapsulates SCSI (Small Computer System Interface) commands and data in TCP/IP packets for linking storage devices with servers over common IP infrastructures.
  • Page 30 A volume snapshot is the state of a system at a particular point in time. Local Clone Local clone function has another physical data copy as the original volume. Remote Replication Remote replication function prevents primary site failure by replicating data to the remote sites. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 31: Prepare For Installation

    Prepare for Installation Preparation for installation is an important task, it will help you to plan your system configuration and install your system smoothly. This chapter provides a description of the configuration planning steps and a configuration worksheet example for reference. 2.1.
  • Page 32 IP address, subnet mask, and gateway of the iSCSI ports. Onboard 2 x 10GBASE-T iSCSI (RJ45) ports Controller 1 Onboard LAN1 Onboard LAN2 IP Address Subnet Mask Gateway Controller 2 Onboard LAN1 Onboard LAN2 IP Address Subnet Mask Gateway © Copyright 2017 QSAN Technology, Inc. All Right Reserved.
  • Page 33 Slot 1 iSCSI Port IP Addresses: (optional) IP address, subnet mask, and gateway of the iSCSI ports. 4-port 10GbE iSCSI Host Card (SFP+) or 4-port 1GBASE-T iSCSI Host Card (RJ45) Controller 1 Slot 1 LAN1 Slot 1 LAN2 Slot 1 LAN3 Slot 1 LAN4 IP Address Subnet Mask...
  • Page 34 RAID level 0, 1, 3, 5, 6, 0+1, 10, 30, 50, 60, and N-way mirror Raw Capacity: Sum of disk capacity. Estimate Capacity: Estimate capacity according to the RAID level. 7. Volume Configuration Item Value Volume Name: © Copyright 2017 QSAN Technology, Inc. All Right Reserved.
  • Page 35 The maximum length of the volume name is 32 characters. Valid characters are [ A~Z | a~z | 0~9 | -_<> ]. Capacity: Required capacity of the volume. Volume Type: RAID Volume or Backup Volume 8. LUN Mapping Configuration Item Value Protocol: iSCSI or FCP.
  • Page 36 IP addresses of target unit. Target Controller 1 Controller 2 (optional) IP Address Target CHAP Username: (optional) CHAP (Challenge-Handshake Authentication Protocol) username. The maximum length of the username is 223 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 37: Configuration Planning For Initial Setup

    characters. Valid characters are [ A~Z | a~z | 0~9 | ~!@#%^&*_-+=|(){}[]:;<>.?/ ]. Target CHAP Password: (optional) CHAP (Challenge-Handshake Authentication Protocol) password. The length of the password is between 12 to 16 characters. Valid characters are [ A~Z | a~z | 0~9 | ~!@#$%^&*_-+=`|\(){}[]:;”’<>,.?/ ].

  • Page 38: Management Ip Configuration Planning

    For an iSCSI dual-controller system, recommend to install an iSNS server on the same storage area network. For better usage of failover, the host must logon the target twice © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 39: Figure 2-1 Dual-Controller Topology

    (both controller 1 and controller 2), and then the MPIO should setup automatically. More advanced, all the connections among hosts (with clustering), switches, and the dual- controller are recommended as redundant as shown below. Figure 2-1 Dual-controller Topology If you are using onboard iSCSI LAN ports, please fill in part 4, onboard iSCSI port IP addresses of iSCSI port configuration.

  • Page 40: Fibre Channel Configuration Planning

    Set the topology as the same as the HBA or fibre channel switch. Topology supports FC-  AL, point-to-point, Fabric (16Gb fibre channel only supports Point-to-Point topology). © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 41: Storage Configuration Planning

    2.1.6. Storage Configuration Planning This is the most important part to use the SAN storage system effectively. Depending on your application, estimated volume capacity, and disk failure risk, you should have a well- thought out storage plan. Complete all storage configuration planning jobs on part 6, pool configuration, part 7, volume configuration, part 8, LUN mapping configuration, and part 9, SSD cache configuration.

  • Page 42: Backup Configuration Planning

    Plan the schedule of snapshots, determine the cycle of taken snapshots. It can be hourly, daily, or weekly. Planning the Local Clones To plan the local clones, you have to select a source volume and prepare a target volume which the source clones to. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 43: System Parameters

    Select a source volume and check its capacity.  Prepare a target volume and set it as backup volume. The capacity of target volume  should be larger than the source one. Plan the schedule local clones, determine the cycle of executing clone tasks. It can be ...
  • Page 44 Maximum Disk Drive Quantity in an Auto Tiering Pool 256 (= 32 x 8) Maximum Capacity of a Disk Group 64TB Maximum Auto Tiering Pool Capacity per Pool 256TB Maximum Auto Tiering Pool Capacity per System 1,024TB Volumes Parameters © Copyright 2017 QSAN Technology, Inc. All Right Reserved.
  • Page 45 Item Value Maximum Volume Quantity in a Pool Maximum Volume Quantity Per System 4,096 (include Snapshot Volumes) Maximum Host Number Per Volume Maximum Volume Capacity in Thick Provisioning Pool 640TB Maximum Volume Capacity in Thin Provisioning/Auto 256TB Tiering Pool LUN Parameters Item Value Maximum Quantity of LUN...

  • Page 46: Configuration Example

    Management Port IP Address on Controller 2: (optional) IP: 192.168.1.235 IP address, subnet mask, and gateway of the management SM: 255.255.255.0 port on controller 2. GW: 192.168.1.254 3. Notification Setting Item Value © Copyright 2017 QSAN Technology, Inc. All Right Reserved.
  • Page 47 Email-from Address: admin@company.com Email-from address to send event notification. Email-to Addresses: Email-to Address 1: Email-to addresses to receive event notification user1@company.com Email-to Address 2: user2@company.com Email-to Address 3: user3@company.com SMTP Server: smtp.company.com Network name or IP address of SMTP (Simple Mail Transfer Protocol) server.
  • Page 48 CHAP (Challenge-Handshake Authentication Protocol) password. The length of the password is between12 to 16 characters. Valid characters are [ A~Z | a~z | 0~9 | ~!@#$%^&*_-+=`|\(){}[]:;”’<>,.?/ ]. 5. Fibre Channel Port Configuration © Copyright 2017 QSAN Technology, Inc. All Right Reserved.
  • Page 49 Item Value Slot 1 Fibre Channel: (optional) Link speed and topology of the fibre channel ports. Topology support: FC-AL, point-to-point, Fabric (16Gb Fibre Channel only supports Point-to-Point topology) 4-port 16Gb Fibre Channel Host Card (SFP+) Controller 1 Slot 1 FC1 Slot 1 FC2 Slot 1 FC3 Slot 1 FC4...
  • Page 50 Raw Capacity: 800GB Sum of disk capacity. 10. Snapshot Configuration Item Value Volume Name: V1-PL1 Select one of created volumes. Snapshot Space: 1.6TB Reserved snapshot space for the volume. Snapshot Name: Snap-V1-PL1 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.
  • Page 51 The maximum length of the snapshot name is 32 characters. Valid characters are [ A~Z | a~z | 0~9 | -_<> ]. Schedule Snapshots: (optional) Daily 00:00 Define the cycle of snapshots. 11. Local Clone Configuration Item Value Source Volume Name: V1-PL1 Select one of created volume for source.
  • Page 52 Traffic Shaping for Off-peak Hour: (optional) 500MB Limit the transfer rate at off-peak hour. Off-peak Hour: (optional) Mon. ~ Fri. PM10:00 ~ Define the off-peak hours. AM06:59 Sat. ~ Sun. AM00:00 ~ PM23:59 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 53: Getting Started

    The default setting for the management IP address is DHCP. For users who are going to install at the first time, we provide the QFinder Java utility to search for QSAN products on the network and aid quick access to the login page of the SANOS web interface.

  • Page 54: Figure 3-1 Qfinder Utility

    DHCP server, e.g., 192.168.30.234. The default system name is the model name plus the last 6 digits of serial number, e.g., XS5216-D40000. Double clicking the selected entry will automatically bring up the browser and display the login page. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 55: Initial Setup

    TIP: QFinder utility works in the following network environments: Both the management port of the SAN storage system and the  management computer are both on the same subnet domain of the LAN. The LAN works with or without DHCP server. ...

  • Page 56: Figure 3-3 Initial Configuration Step 1

    2. Enter a System Name, for security reason, it’s highly recommended to change system name. The maximum length of the system name is 32 characters. Valid characters are [ A~Z | a~z | 0~9 | -_ ]. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 57: Figure 3-4 Initial Configuration Step 2

    3. Change Admin Password, The maximum length of the password is 12 characters. Valid characters are [ A~Z | a~z | 0~9 | ~!@#$%^&*_-+=`|\(){}[]:;"'<>,.?/ ]. 4. Set the local Date and Time. Date and time can be set by manually or synchronized with a NTP (Network Time Protocol) server.

  • Page 58: Figure 3-5 Initial Configuration Step 3

    8. Assign a DNS Server Address. DNS (Domain Name System) provides a means to translate FQDN (Fully Qualified Domain Name) to IP address. Some notification services require DNS settings. 9. Click Next button to proceed. Figure 3-5 Initial Configuration Step 3 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.
  • Page 59 10. Verify all items, and then click the Finish button to complete the initial configuration. You have to login with the new IP address of the management port and new admin password next time. Getting Started...

  • Page 60: Sanos User Interface

    Password: <Your Password> TIP: Supported web browsers: Google Chrome 45 or later.   Mozilla Firefox 45 or later.  Microsoft Internet Explorer 10 or later.  Apple Safari 8 or later. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 61: Sanos 4.0 Desktop Panel

    4.2. SANOS 4.0 Desktop Panel When the password has been verified, the home page is displayed. As shown in Figure 4-2, the SANOS 4.0 desktop panel has three main sections: Function Menus and Submenus  Function Tabs   Main Working Area Function Tabs Main Working Area Function...

  • Page 62: Function Menus

    Fibre Channel Ports Fibre Channel Ports STORAGE MANAGEMENT Disks Disks Pools Pools | Auto Tiering Volumes Volumes LUN Mappings LUN Mappings SSD Cache SSD Cache Pools | SSD Cache Statistics DATA BACKUP © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 63: Dashboard Menu

    Snapshots Snapshots Remote Replications Remote Replications VIRTUALIZATION VMware VMware Microsoft Hyper-V Citrix Citrix MONITORING Log Center Event Logs Enclosures Hardware Monitoring | SES Performance Disk | iSCSI | Fibre Channel The following describes a brief introduction of desktop function menus. 4.3.1.

  • Page 64: Host Configuration Menu

    4.3.3. Host Configuration Menu The HOST CONFIGURATION menu provides access to function menus of Overview, iSCSI Port, and Fibre Channel Ports which is visible when fibre channel host cards are installed. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 65: Storage Management Menu

    Overview Select Overview function menu to view all host connectivity which includes status and settings of all host cards. For more information, please refer to the chapter 7.2, Host Connectivity Overview section in the Host Configuration chapter. iSCSI Ports Select iSCSI Ports function menu to setup iSCSI port settings, including iSCSI port IP address, link aggregation, VLAN ID, jumbo frame, iSNS server, iSCSI targets, CHAP accounts, and view iSCSI active sessions.

  • Page 66: Data Backup Menu

    The VIRTUALIZATION menu provides access to function menus of VMware, Microsoft, and Citrix. VMware Provide information of supported VMware integration of storage, such as VAAI (VMware vSphere Storage APIs for Array Integration). © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 67: Monitoring Menu

    Microsoft Provide information of supported Microsoft Windows feature of storage, such as ODX (Offloaded Data Transfer). Citrix Provide information of Citrix XenServer platform and its compatible version. 4.3.7. Monitoring Menu The MONITORING menu provides access to function menus of Log Center, Enclosure, and Performance.

  • Page 68: Figure 4-3 Portable Usb Lcm

    System Settings chapter. This table describes the function of each item. Table 4-2 USB LCM Function List Function Description System Info. Display system information including firmware version and memory size. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.
  • Page 69 Reset/Shutdown Reset or shutdown the system. View IP Setting Display current IP address, subnet mask, and gateway. Change IP Set IP address, subnet mask, and gateway. There are three options of Config DHCP, BOOTP, or static IP address. Enc. Show the enclosure data of disk drive temperature, fan status, and Management power supply status.

  • Page 70: Table 4-3 Usb Lcm Menu Hierarchy

    Adjust IP address IP Subnet Adjust Mask Submask IP IP Gateway Adjust Gateway IP Apply IP Yes No Setting Enc. Phy. Disk Temp. Local Management Slot <n>: <nn> Cooling Local FAN<n>: © Copyright 2017 QSAN Technology, Inc. All Right Reserved.
  • Page 71 <nnnnn> RPM Power Supply Local PSU<n>: <status> Reset to Yes No Default SANOS User Interface...

  • Page 72: Dashboard

    Select the Dashboard function submenu to show summary of overall system. It’s divided into four blocks in the main working area. There are system information, storage view, performance, and event logs. Figure 5-1 Dashboard Function Submenu Figure 5-2 Dashboard © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 73: Figure 5-3 System Information Block In The Dashboard

    System Information The system information block displays the basic information of the system. In addition, clicking More… will pop up a window for more details. Figure 5-3 System Information Block in the Dashboard This table shows the column descriptions. Table 5-1 System Information Block Descriptions Column Name Description...

  • Page 74: Figure 5-4 System Information Popup Window

    Fault: UPS connection has failed.  Clicking More… will pop up a window of system information details. Figure 5-4 System Information Popup Window Click the Close button to exit the window. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 75: Figure 5-5 System View Block In The Dashboard

    Storage View The storage view block displays the basic information of storage. In addition, clicking pool column will pop up a window for more details. Figure 5-5 System View Block in the Dashboard The top table displays sum of disks, pools, volumes, LUN mappings, snapshots, clones, and remote replications in system.

  • Page 76: Figure 5-6 Pool Information Popup Window

    Failed: the pool disk of the VD has single or multiple failed disks than its RAID level can recover from data loss.  Degraded: At least one disk from the RG of the Volume is failed or © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 77: Table 5-4 Disk Group Column Descriptions

    plugged out. Partially optimal: the volume has experienced recoverable read  errors. After passing parity check, the health will become Optimal. Capacity Total capacity of the volume. Used Used capacity of the volume. Used % Used percentage of the volume. Snapshot space Used snapshot space / Total snapshot space.

  • Page 78: Figure 5-7 Performance Block In The Dashboard

    The model name of disk drive. Click the Close button to exit the window. Performance The performance block displays sum of throughput of all front-end ports for reference. Figure 5-7 Performance Block in the Dashboard © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 79: Hardware Monitoring

    TX: Green line is transmitting throughput performance, the unit of measure is MBps  (Mega Byte per Second).  RX: Amber line is receiving throughput performance data. The unit of measure is MBps (Mega Byte per Second). Event Logs The event log block displays the recent 5 event logs. In addition, clicking More…...

  • Page 80: Figure 5-9 Hardware Monitoring Function Submenu

    Hardware Monitoring There are many voltage and temperature sensors on the controller and backplane. If the statuses of every sensor are Good, the information in this page displays Good. On the other © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 81: Figure 5-11 Head Unit Popup Window

    hand, if anyone is not good, it will display Failed. So you may click More… to see details on what component has a fault. Clicking More… of every enclosure will pop up a window of enclosure status in detail. Figure 5-11 Head Unit Popup Window Click the Close button to exit the window.

  • Page 82: System Settings

    The system name, administrator’s password, user’s password, date and time, and the login options can be changed as required. Figure 6-1 General Function Submenu TIP: Mouse over the icon can get online help. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 83: Figure 6-2 General Settings

    Figure 6-2 General Settings Options of System Settings The options available in this tab:  System Name: Change the system name, highlight the old name and type in a new one. Maximum length of the system name is 32 characters. Valid characters are [ A~Z | a~z | 0~9 | -_ ].

  • Page 84: Management Port Settings

    MAC address is displayed for reference and it is used on wake-on-LAN feature. IP address, DNS server, and service ports can be modified according to the management purpose. Figure 6-3 Management Port Function Submenu © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 85: Figure 6-4 Management Port Settings

    Figure 6-4 Management Port settings Options of Management Port Settings The options available in this tab: Enable Dual Management Ports: This is for dual controller models. When the setting is  enabled, both management ports of the controllers have their own IP addresses and MAC addresses, and both are active.
  • Page 86 Service Ports: If the default port numbers of HTTP Port, HTTPS Port, and SSH Port are not allowed on your network environment, they can be changed here. When finished, click the Apply button to take effect. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 87: Power Settings

    6.3. Power Settings The Power Settings function submenu provides Boot Management, Cache to Flash, and UPS function tabs to show information and configuration setup. Figure 6-5 Power Settings Function Submenu 6.3.1. Boot Management Settings Select the Boot Management function tab in the Power Settings function submenu to enable or disable options about boot.
  • Page 88 Enable Wake-on-SAS: Check to enable wake-on-SAS. If Wake-on-SAS is enabled, and connect the XD5300 series expansion unit(s) with the proprietary Wake-on-SAS expansion cable(s), the XD5300 series will power on or shutdown in conjunction with the head unit. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 89: Cache To Flash Status

    XCubeSAN Hardware Owner’s Manual. CAUTION: Wake-on-SAS feature required genuine QSAN proprietary expansion cables connected between the head unit and expansion units. Please contact local sales for this accessory. When finished, click the Apply button to take effect. 6.3.2. Cache to Flash Status Select the Cache to Flash function tab in the Power function submenu to show information of power module and flash module for cache to flash protection.

  • Page 90: Ups Settings And Status

    Select the UPS function tab in the Power function submenu to enable UPS (Uninterruptible Power Supply) settings and watch the UPS status. INFORMATION: For deployment of UPS, please refer to the chapter 3, Installing the System Hardware in the XCubeSAN Hardware Owner’s Manual. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 91: Figure 6-8 Ups Status And Settings

    Figure 6-8 UPS Status and Settings This table shows the column descriptions. Table 6-3 UPS Column Descriptions Column Name Description UPS Status The status of UPS:  Line: The UPS is online.  Battery: The UPS is on battery.  Battery: The voltage of the battery is low.
  • Page 92 DES, and enter a privacy password. If Communication Type selects Serial:  UPS Manufacturer: Select the UPS manufacture. UPS Model: Select the UPS model.  When finished, click the Apply button to take effect. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 93: Notification Settings

    INFORMATION: Authentication Protocol: MD5: The MD5 algorithm is a widely used hash function producing a  128-bit hash value. It can still be used as a checksum to verify data integrity, but only against unintentional corruption. SHA: SHA (Secure Hash Algorithm) is a cryptographic hash function ...

  • Page 94: Alert Settings

    Select the Alert function tab in the Notifications function submenu to be used to setup alerts via the Syslog protocol, the pop-up alerts and alerts on the front display. The device buzzer is also managed here. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 95: Figure 6-11 Alert Settings

    Figure 6-11 Alert Settings Options of Alert Settings The options available in this tab: Syslog Server Settings: Fill in the host address and the facility for syslog service. The  default UDP port is 514. You can also check the alert levels here. Most LINUX/UNIX systems built in syslog daemon.

  • Page 96: Snmp Settings

    The default SNMP trap port is 162. You can check or uncheck the alert levels which you would like to receive. And then fill in up to three SNMP trap addresses for receiving the event notifications. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.
  • Page 97 Options of SNMP Server Settings The options are available on this tab: SNMP Version: Select SNMP supported versions: v1/ v2, or v3. If select SNMP v3, it  needs more options for authentication. Please enter a username, select an authentication protocol and enter an authentication password, check to use privacy if necessary, select a privacy protocol, and enter a privacy password.

  • Page 98: Maintenance

    Advanced Volume Administration chapter, the others are described in the following sections. Figure 6-13 Maintenance Function Submenu 6.5.1. System Information Select the System Information function tab in the Maintenance function submenu to display all system information. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 99: Figure 6-14 System Information

    Figure 6-14 System Information System Settings...

  • Page 100: Firmware Update

    6.5.2. Firmware Update Select the Update function tab in the Maintenance function submenu to be used to update controller firmware, expansion unit firmware, change operation mode, and active licenses. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 101: Figure 6-15 Firmware Update

    TIP: Before upgrading, we recommend you to export your system configurations first in the Configuration Backup function tab. Please refer to the Configuration Backup section for more details. Figure 6-15 Firmware Update Options of Firmware Update The options available in this tab: ...

  • Page 102: Figure 6-16 Enable Licenses

    After enabling the license, the system must reboot manually to take effect. Auto Tiering License: This option enables auto tiering. The operation is the same as  SSD cache. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 103: Firmware Synchronization

    TIP: After enabling the licenses, the functions cannot be disabled and these license options will be hidden. 6.5.3. Firmware Synchronization Select the Firmware Synchronization function tab in the Maintenance function submenu to be used on dual controller systems to synchronize the controller firmware versions when the firmware of the master controller and the slave controller are different.

  • Page 104: Reset To Factory Defaults

    ID. Figure 6-19 Reset to Defaults Options of Resets to Factory Defaults The options available in this tab: © Copyright 2017 QSAN Technology, Inc. All Right Reserved.
  • Page 105 Reset to Defaults: Click the Reset button to progress reset to defaults and force a  reboot. The default settings are: 。 Reset Management Port IP address to DHCP, and then fix IP address: 169.254.1.234/16. 。 Reset admin’s Password to 1234. 。...

  • Page 106: Configuration Backup

    Import: Import all system configurations excluding volume configuration.  Export: Export all configurations to a file.  CAUTION: The Import option will import all system configurations excluding volume configuration. The current system configurations will be replaced. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 107: Reboot And Shutdown

    6.5.7. Reboot and Shutdown Select the Reboot / Shutdown tab in the Maintenance function submenu to be used to reboot or shutdown the system. Before powering off the system, it is highly recommended to execute Shutdown function to flush all data from memory cache into the disk drives. The step is important for data protection.

  • Page 108: Host Configuration

    It requests all SCSI operations like read or write. An initiator is usually located on the host side (either an iSCSI HBA or iSCSI SW initiator). © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 109: Fibre Channel Technology

    The target is the storage device itself or an appliance which controls and serves volumes. The target is the device which performs SCSI command or bridge to an attached storage device. Each iSCSI node, that is, an initiator or target, has a unique IQN (iSCSI Qualified Name). The IQN is formed according to the rules that were adopted for Internet nodes.

  • Page 110: Host Connectivity Overview

    Figure 7-1 Overview Function Submenu The following is an example to show onboard 10GbE LAN port, 1GbE iSCSI host card at slot 2 and 16Gb FC host cards at slot 1. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 111: Figure 7-2 Host Port Overview

    Figure 7-2 Host Port Overview The columns display information of Location, Name, Status, and MAC address for iSCSI or WWPN (World Wide Port Name) for fibre channel. INFORMATION: Fibre Channel / iSCSI Host Card at Slot 1: HQ-16F4S2, 4 x 16Gb FC (SFP+) ports ...

  • Page 112: Configure Iscsi Connectivity

    Select the iSCSI Ports function submenu to show information of iSCSI ports where they are located (onboard or host cards). The iSCSI port properties can be configured by clicking the functions button to the left side of the specific iSCSI port. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 113: Figure 7-4 List Iscsi Ports

    Figure 7-4 List iSCSI Ports The columns display information of Location, Name, Status, LAG (Link Aggregation), VLAN ID (Virtual LAN ID), IP address, Gateway IP address, Jumbo Frame status, and MAC address. Set IP Address Click ▼ -> Set IP Address which can assign an iSCSI IP address of the iSCSI data port. There are two options: Use DHCP to acquire an IP address automatically or specify a Static IP Address to set the IP address manually.

  • Page 114: Figure 7-5 Iscsi Ip Address Settings

    Two bonding methods, Trunking and LACP (Link Aggregation Control Protocol), can be selected. At least two iSCSI data ports must be checked for iSCSI link aggregation. Figure 7-6 Set Link Aggregation © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 115: Figure 7-7 Set Vlan Id

    INFORMATION: Trunking: Sometimes called “Port Trunking” configures multiple iSCSI ports to be grouped together into one in order to increase the connection speed beyond the limit of a single iSCSI port. LACP: The Link Aggregation Control Protocol is part of IEEE 802.3ad that allows bonding several physical ports together to form a single logical channel.

  • Page 116: Figure 7-8 Set Jumbo Frame

    Set Jumbo Frame CAUTION: If the VLAN ID or jumbo frames are set, the related switching hub and HBA on host must be set, too. Otherwise, the LAN connection cannot work properly. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 117: Configure Iscsi Settings

    Ping Host Click ▼ -> Ping Host, it can verify the port connection from a target to the corresponding host data port. Input the host’s IP address and click Start button. The system will display the ping result. Click Stop button will stop ping activity. Figure 7-9 Ping Host Reset Port...

  • Page 118: Configure Iscsi Targets

    Select the iSCSI Targets function tab in the iSCSI Ports function submenu to show the iSCSI target information for iSCSI initiator. The iSCSI target properties can be configured by clicking the functions button to the left side of the specific iSCSI target. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 119: Figure 7-11 Iscsi Targets

    Figure 7-11 iSCSI Targets Change Authentication Mode Click ▼ -> Authentication Method to enable CHAP (Challenge Handshake Authentication Protocol) authentication method used in point-to-point for user login. It’s a type of authentication in which the authentication server sends the client a key to be used for encrypting the username and password.

  • Page 120: Figure 7-13 Change Chap Users

    Click ▼ -> Change Target Name to change iSCSI target name if necessary. The maximum length of the target name is 223 characters. Valid characters are [ a~z | 0~9 | -.: ]. © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 121: Figure 7-14 Change Target Name

    Figure 7-14 Change Target Name Change Network Portal Click ▼ -> Change Network Portal, and then select the network ports that you would like to be available for this iSCSI target. Figure 7-15 Change Network Portal Change Alias Click ▼ -> Change Alias to add or change the alias name. To remove an alias, clear out the current name.

  • Page 122: Configure Iscsi Chap Accounts

    Here is an example of creating a CHAP user. 1. Select the CHAP Account function tab of the iSCSI Ports function submenu, click the Create CHAP User button. Figure 7-17 Create a CHAP User 100 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 123: Figure 7-18 List Chap Users

    2. Enter Username of CHAP user. The maximum length of the username is 223 characters. Valid characters are [ A~Z | a~z | 0~9 | ~!@#%^&*_-+=|(){}[]:;<>.?/ ]. 3. Enter Password (CHAP secret) and Confirm Password. The length of the password is between 12 to 16 characters.

  • Page 124: Active Sessions

    Select the Sessions function tab in the iSCSI Ports function submenu to shows all currently active iSCSI sessions and their connection information. Figure 7-20 Active Sessions This table shows the column descriptions. 102 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 125: Table 7-3 Active Sessions Column Descriptions

    Table 7-3 Active Sessions Column Descriptions Column Name Description TSIH TSIH (Target Session Identifying Handle) is used for this active session. Initiator Name It displays the host computer name. Target Name It displays the controller name. InitialR2T InitialR2T (Initial Ready to Transfer) is used to turn off either the use of a unidirectional R2T command or the output part of a bidirectional command.

  • Page 126: Configure Fibre Channel Connectivity

    Node Name), WWPN (World Wide Port Name), and some statistical information. 7.4.1. Configure Fibre Channel Link Speed Click ▼ -> Change Link Speed to change the link speed of fibre channel. 104 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 127: Configure Fibre Channel Topology

    Figure 7-23 Change Link Speed Options of Change Link Speed The option available in this tab:  Link Speed: Set the link speed of fibre channel. The options are Automatic (default), 4 Gb/s, 8 Gb/s, and 16 Gb/s. Recommend to set it as Automatic to detect the data rate automatically.

  • Page 128: Configure Fibre Channel Targets

    HBA on host must be set, too. Otherwise, the connection cannot work properly. 7.4.3. Configure Fibre Channel Targets Click ▼ -> Target Configuration to set multi-target configurations which are accessible by the host. 106 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 129: Clear Fibre Channel Counters

    Figure 7-25 Target Configuration CAUTION: Point-to-Point connection mode does not support multi-target. 7.4.4. Clear Fibre Channel Counters Click Clear All Counters button to clear all counters of fibre channels. Click ▼ -> Clear Counters to clear the counters of the selected fibre channel. Host Configuration...

  • Page 130: Storage Management

    RAID 0 volume. Striping distributes the contents roughly equally among all member disks, which makes concurrent read or write operations on the multiple disks and results in performance improvements. The concurrent operations make 108 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.
  • Page 131 the throughput of most read and write operations equal to the throughput of one disk multiplied by the quantity of disk drives. Increased throughput is the big benefit of RAID 0, at the cost of increased vulnerability of data due to drive failures. RAID 1 (Mirroring between two disks) RAID 1 consists of data mirroring, without parity or striping.
  • Page 132 RAID 30. RAID 50 requires at least six disk drives. Since RAID 50 constitutes stripe of multiple disk group of RAID 5, it has higher performance than RAID 5, but capacity utilization is lower than RAID 5. 110 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 133: Table 8-1 Raid Level Summary - 1

    RAID 60 (RAID 6 on top of RAID 0) RAID 60 is the combination of RAID 6 and RAID 0, do RAID 6 first, further RAID 0. In other words, it accesses stripes for more than two groups of RAID 6. RAID 6 needs to have at least four disk drives, so the minimum requirement of RAID 60 is eight disk drives.

  • Page 134: Table 8-2 Raid Level Summary - 2

    Applications Database, Database, database, database, archive, Application Application File server, File server, Backup to Server Server application application disk, High server server Availability solution, Server with large capacity Require- ment 112 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 135: Sanos Storage Architecture

    SANOS supports hot spare drives. When a member disk drive in array fails, the system automatically replaces the failed member with a hot spare drive and rebuilds the array to restore its redundancy. Candidate and spare drives can be manually exchanged with array members.

  • Page 136: Volume Technology

    A volume is a logical disk that is presented to a host system. The capacity is provided by pool. Each pool can be divided into several volumes. The volumes in one pool share the same RAID level, but may have different volume capacity. 114 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 137: Lun Technology

    Figure 8-2 Volume in Storage Architecture Volume is a basic unit of data backup. Base on the volume, SANOS provides snapshot, local clone, and remote replication functions. For more information about data backup, please refer to the chapter 12, Data Backup chapter.

  • Page 138: Figure 8-3 Lum Mappings In Storage Architecture

    The snapshot volumes can also be mapped to a LUN. The same, the read-only snapshot LUN can be read by the host, and the writable snapshot LUN can be read/write. 116 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 139: Hot Spares

    A SANOS system can contain up to 4,096 LUNs which includes the total of volume LUN mappings and snapshot volume LUN mappings. Table 8-5 LUN Parameters Item Value Maximum Quantity of LUN 4,096 For more information about LUN mapping operation, please refer to the chapter 8.6, Configure LUN Mappings section.

  • Page 140: Working With Disk Drives

    Select the Disks function submenu to display the status of the disk drives, set hot spares, check disk health, and update disk firmware. The entire SAN storage system can contain up to 10 expansion enclosures and 446 disk drives. Figure 8-5 Disks Function Submenu 118 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 141: List Disks

    INFORMATION: For deployment of the SAN system and expansion enclosures, please refer to the chapter 4, Deployment Types and Cabling in the XCubeSAN Hardware Owner’s Manual. Table 8-6 Enclosure and Disk Parameters Item Value Maximum Enclosure Quantity in a System Maximum Disk Quantity in a System 8.3.1.

  • Page 142: Figure 8-6 List Disks

    Done: The disk drive has been checked the disk health. Health The health of the disk drive: Good: The disk drive is good.   Failed: The disk drive is failed. 120 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 143: Operations On Disks

    Error Alert: S.M.A.R.T. error alerts.  Read Errors: The disk drive has unrecoverable read errors.  Capacity The capacity of the disk drive. Disk Type The type of the disk drive: [ SAS HDD | NL-SAS HDD | SAS SSD | SATA SSD ] ...
  • Page 144 Troubleshooting chapter. Here is an example how to set a spare disk to a dedicated pool. 1. Select a free disk, and then click ▼ -> Set Dedicated Spare. Figure 8-8 Set Dedicated Spare 122 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 145: Figure 8-9 Update Disk Firmware

    2. Select the pool which the disk drive is set to its dedicated spare, and then click OK button. Disk Scrub and Clear Disk Read Error Click ▼ -> Disk Scrub to scrub the disk drive. It’s not available when the disk drive is in used. Click ▼...

  • Page 146: 124

    S.M.A.R.T. (Self-Monitoring Analysis and Reporting Technology) is a diagnostic tool for disk drives to deliver warning of drive failures in advance. It provides users a chance to take actions before a possible drive failure. 124 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 147: Figure 8-11 S.m.a.r.t. Attributes Of Disk Drive

    S.M.A.R.T. measures many attributes of disk drives all the time and inspects the properties of disk drives which are close to being out of tolerance. The advanced notice of possible disk drive failure will allow users to back up the data of disk drive or replace the disk drive. This is much better than a disk drive crash when it is writing data or rebuilding a failed disk drive.

  • Page 148: Configure Thick Provisioning Pools

    1. Select the Pools function submenu, click the Create Pool button. It will scan available disks first. TIP: It may take 20 ~ 30 seconds to scan disks if your system has more than 200 disk drives. Please wait patiently. 126 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 149: Figure 8-13 Create A Thick Provision Pool Step 1

    Figure 8-13 Create a Thick Provision Pool Step 1 2. Select the Pool Type as Thick Provisioning. 3. Enter a Pool Name for the pool. Maximum length of the pool name is 16 characters. Valid characters are [ A~Z | a~z | 0~9 | -_<> ]. 4.

  • Page 150: Figure 8-14 Create A Thick Provision Pool Step 2

    6. Please select disks for pool. Maximum quantity of disk is 64. Select an Enclosure from the drop-down list to select disks from expansion enclosures. 7. Click the Next button to continue. 128 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 151: Figure 8-15 Create A Thick Provision Pool Step 3

    Figure 8-15 Create a Thick Provision Pool Step 3 8. Select a RAID Level from the drop-down list which lists available RAID level only according to the disk selection. 9. Click the Next button to continue. Storage Management...
  • Page 152 。 Enable Disk Standby: Check to enable the auto spin down function of disks. The disks will be spun down for power saving when they are idle for the period of time specified. 11. Click the Next button to continue. 130 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 153: List Thick Provisioning Pools

    Figure 8-17 Create a Thick Provision Pool Step 5 12. After confirmation at summary page, click the Finish button to create a pool. Figure 8-18 A Thick Provisioning Pool is Created 13. A pool has been created. If necessary, click Create Pool button again to create others. 8.4.2.

  • Page 154: Table 8-8 Pool Column Descriptions

    The status of Thin provisioning: Provisioning Disabled.  Enabled.  Volumes The quantity of volumes in the pool. RAID The RAID level of the pool. Current The current running controller of the pool. Controller 132 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 155: Operations On Thick Provisioning Pools

    (This option is only visible when dual controllers are installed.) Table 8-9 Disk Column Descriptions Column Name Description Enclosure ID The enclosure ID. Slot The position of the disk drive. Status The status of the disk drive:  Online: The disk drive is online. ...

  • Page 156: Figure 8-20 Change Disk Properties

    If the auto tiering license is enabled, click ▼ -> Add Disk Group to transfer from the thick provisioning pool to auto tiering pool. For more information, please refer to the chapter 11.7, Transfer to Auto Tiering Pool section. 134 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 157: Figure 8-21 Add Disk Group

    Figure 8-21 Add Disk Group CAUTION: The action of transferring from the thick provisioning pool to auto tiering is irreversible. Consider all possible consequences before making this change. Migrate a Thick Provisioning Pool Click ▼ -> Migrate Pool to change the RAID level of a pool or move the member disk drives of the pool to different disks.

  • Page 158: Migrate A Thick Provisioning Pool

    8.4.4. Migrate a Thick Provisioning Pool The Migrate Pool function changes the pool to different RAID level or adds the member disks of the pool for larger capacity. Figure 8-23 Expand a Thick Provisioning Pool 136 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 159: Figure 8-24 Migrate A Thick Provisioning Pool

    Usually, the pool migrates to higher RAID level for better protection. To perform a migration, the total capacity of the pool must be larger than or equal to the original pool. If the RAID level doesn’t change, the migration can also move the member disk drives of the pool to totally different disk drives.
  • Page 160 OK to complete the selection. The selected disks are displayed at the Disks Used. Figure 8-27 Migrate RAID Level Step 3 5. At the confirmation dialog, click the OK button to execute migration. 138 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 161: Operation Limitations During Migration

    Figure 8-28 Migrate RAID Level Step 4 6. Migration starts. The status of the Disks, Pools and Volumes are changing. The complete percentage of migration is displayed in the Status. 7. It’s done when the complete percentage reaches 100%. TIP: Thin provisioning pool cannot execute migrate or move, it uses the Add Disk Group option to enlarge capacity.

  • Page 162: Configuring Volumes

    Pools Function Submenu 8.5.1. Create a Volume Here is an example of creating a volume in think provisioning Pool. 1. Select the Volumes function submenu, click the Create Volume button. 140 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 163: Figure 8-30 Create A Volume In Thick Provisioning Pool Step 1

    Figure 8-30 Create a Volume in Thick Provisioning Pool Step 1 2. Enter a Volume Name for the pool. The maximum length of the volume name is 32 characters. Valid characters are [ A~Z | a~z | 0~9 | -_<> ]. 3.
  • Page 164 。 Enable Read-ahead: Check to enable the read ahead function of volume. The system will discern what data will be needed next based on what was just retrieved from 142 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 165: Figure 8-32 Create A Volume In Thick Provisioning Pool Step 3

    disk and then preload this data into the disk's buffer. This feature will improve performance when the data being retrieved is sequential. 。 Enable Fast RAID Rebuild: This option is available when the pool is created in protection RAID level (e.g., RAID 1, 3, 5, 6, 0+1, 10, 30, 50, and 60). For more information, please refer to the chapter 8.5.5, Fast RAID Rebuild section.

  • Page 166: List Volumes

    Online: The volume is online.  Offline: The volume is offline.   Erasing: The volume is being erased if the Erase Volume Data option is set.  Initiating: The volume is being initialized. 144 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 167: Operations On Volumes

    Rebuilding: The volume is being rebuilt.  Migrating: The volume is being migrated.  Rollback: The volume is being rolled back.  Parity Checking: The volume is being parity check.   Relocating: The volume is being relocated. Health The health of the volume: Optimal: the volume is working well and there is no failed disk in ...
  • Page 168 LUN, please refer to the chapter 8.6, Configure LUN Mappings section. Figure 8-36 Map a LUN of iSCSI Connectivity Click ▼ -> Unmap LUNs to unmap logical unit numbers from the volume. 146 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 169: Figure 8-37 Unmap Luns

    Figure 8-37 Unmap LUNs Snapshot Operations Click ▼ -> Set Snapshot Space to set snapshot space for preparing to take snapshots. For more information about snapshot, please refer to the chapter 12.1, Managing Snapshots section in the Data Backup chapter. Figure 8-38 Set Snapshot Space Click ▼...

  • Page 170: Figure 8-39 Create Local Clone

    Click ▼ -> Disable SSD Cache to disable SSD cache for the volume. Change Volume Properties Click ▼ -> Change Volume Properties to change the volume properties of the volume. 148 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 171: Figure 8-40 Change Volume Properties

    Figure 8-40 Change Volume Properties Reclaim Space with Thin Provisioning Pool Click ▼ -> Space Reclamation to reclaim space from the pool when the volume is in a thin provisioning pool. For more information about space reclamation, please refer to the chapter 9.2.1, Space Reclamation section in the Thin Provisioning chapter.

  • Page 172: Extend Volume Capacity

    Extend Volume Capacity 3. If the volume needs initialization, it will display the status Initiating and the complete percentage of initialization in Status. 4. It’s done when the complete percentage reaches 100%. 150 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 173: Fast Raid Rebuild

    TIP: The extension capacity must be larger than the current capacity. CAUTION: Extension cannot be executed during rebuilding or migration. 8.5.5. Fast RAID Rebuild When executing rebuild, the Fast RAID Rebuild feature skips any partition of the volume where no write changes have occurred, it will focus only on the parts that have changed. This mechanism may reduce the amount of time needed for the rebuild task.
  • Page 174 Thus, the performance of random write in a clean partition would be worse. CAUTION: Disabling Fast RAID Rebuild function is recommended when the access pattern to the volume is random write. 152 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 175: Configure Lun Mappings

    8.6. Configure LUN Mappings Select the LUN Mappings function submenu to map, unmap or view the status of LUN (Logical Unit Number) for each volume. Figure 8-44 Pools Function Submenu 8.6.1. Map a LUN of iSCSI Connectivity Here’s an example of mapping a LUN of iSCSI connectivity. 1.

  • Page 176: Map A Lun Of Fibre Channel Connectivity

    8.6.2. Map a LUN of Fibre Channel Connectivity Here’s an example of mapping a LUN of fibre channel connectivity. 1. Select the LUN Mappings function submenu, click the Map LUN button. 154 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 177: List Lun Mappings

    Figure 8-46 Map a LUN of FC Connectivity 2. Select the Protocol as FCP (Fibre Channel Protocol). 3. Select a Volume from the drop-down list. 4. Enter the Allowed Hosts with semicolons (;) or click the Add Host button to add one by one.

  • Page 178: Operations On Lun Mappings

    The documents are available at the website: How to Configure iSCSI Initiator in Microsoft Windows   How to Configure iSCSI Initiator in ESXi 6.x  Implement iSCSI Multipath in RHEL 6.5 156 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 179: Disk Roaming

    8.8. Disk Roaming Disks can be re-sequenced in the same system or move all member disks in the same pool from system-1 to system-2. This is called disk roaming. System can execute disk roaming online. Please follow these steps. 1. Select the Pools function submenu, selects a pool. And then click ▼ -> Deactivate. 2.

  • Page 180: Thin Provisioning

    To put it in another way, thin provisioning allocates storage space that may or may not exist. The whole idea is actually another way of virtualization. Virtualization is always about a logical pool of physical assets 158 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 181: Thick Provisioning Vs. Thin Provisioning

    and provides better utilization over those assets. Here the virtualization mechanism behind thin provisioning is storage pool. The capacity of the storage pool is shared by all volumes. When write requests come in, the space will be drawn dynamically from this storage pool to meet the needs.

  • Page 182: Theory Of Operation

    LUN which can be accessed by a host system. The following is the storage architecture of a thin provisioning pool. Figure 9-4 Storage Architecture of Thin Provisioning Pool 160 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 183: Space Reclamation

    Disk groups which contain disk drives can be added to a thin provisioning pool at any time to increase the capacity of the pool. For simplifying usage and better performance, every disk group must have the same quantity of disk drives. A thin provisioning pool can have up to 32 disk groups with each disk group containing up to 8 disk drives.

  • Page 184: Create A Thin Provisioning Pool

    1. Select the Pools function submenu, click the Create Pool button. It will scan available disks first. TIP: It may take 20 ~ 30 seconds to scan disks if your system has more than 200 disk drives. Please wait patiently. 162 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 185: Figure 9-6 Create A Thin Provisioning Pool Step 1

    Figure 9-6 Create a Thin Provisioning Pool Step 1 2. Select the Pool Type as Thin Provisioning. 3. Enter a Pool Name for the pool. The maximum length of the pool name is 16 characters. Valid characters are [ A~Z | a~z | 0~9 | -_<> ]. 4.
  • Page 186 6. Please select disks for a disk group in pool. Maximum quantity of disk in a disk group is 8. Select an Enclosure from the drop-down list to select disks from expansion enclosures. 7. Click the Next button to continue. 164 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 187: Figure 9-8 Create A Thin Provisioning Pool Step 3

    Figure 9-8 Create a Thin Provisioning Pool Step 3 8. Select a RAID Level from the drop-down list which lists available RAID level only according to the disk selection. 9. Click the Next button to continue. Thin Provisioning...
  • Page 188 。 Enable Disk Standby: Check to enable the auto spin down function of disks. The disks will be spun down for power saving when they are idle for the period of time specified. 11. Click the Next button to continue. 166 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 189: List Thin Provisioning Pools

    Figure 9-10 Create a Thin Provisioning Pool Step 5 12. After confirmation of info on the summary page, click the Finish button to create a pool. Figure 9-11 A Thin Provisioning Pool is Created 13. A pool has been created. If necessary, click the Create Pool button again to create others.

  • Page 190: Table 9-2 Pool Column Descriptions

    Free capacity of the pool. Available Available capacity of the pool. Thin The status of Thin provisioning: Provisioning  Disabled. Enabled.  Volumes The quantity of volumes in the pool. 168 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 191: Table 9-3 Disk Group Column Descriptions

    RAID The RAID level of the pool. Current The current running controller of the pool. Controller (This option is only visible when dual controllers are installed.) Table 9-3 Disk Group Column Descriptions Column Name Description The number of the disk group. Status The status of the disk group: ...

  • Page 192: Operations On Thin Provisioning Pools

    There are 6 levels of threshold percentage and the default values defined. The event log level and action to take can be changed when the usage of the pool capacity reaches the threshold. 170 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 193: Table 9-5 Thin Provisioning Policy Column Descriptions

    Figure 9-13 Change Thin Provisioning Policy Table 9-5 Thin Provisioning Policy Column Descriptions Column Name Description Threshold The threshold of the pool. Level Define the event log level when the usage of the pool reaches the threshold. The options are: ...
  • Page 194 Move Disk Group Member Disks Click ▼ -> Move Disk Group in disk group to move the member disks of disk group to other disk drives. Select disks and then click OK button. 172 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 195: Add A Disk Group In A Thin Provisioning Pool

    Figure 9-15 Move Disk Group 9.3.4. Add a Disk Group in a Thin Provisioning Pool Here is an example of adding a disk group in thin provisioning pool. 1. Select a pool, click ▼ -> Add Disk Group to add a disk group in a thin provisioning pool. Thin Provisioning...
  • Page 196 Select an Enclosure from the drop-down list to select disks from the expansion enclosures. 3. Click the OK button to add a disk group. 174 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 197: Configure Volumes

    Figure 9-17 List Pool after Adding a Disk Group 9.4. Configure Volumes This section will describe the operations of configuring volume in thin provisioning pool. 9.4.1. Create a Volume in a Thin Provisioning Pool Here is an example of creating a volume of thin provisioning pool. 1.
  • Page 198 Select Volume Type. The options are RAID Volume (for general RAID usage) and Backup Volume (for the target volume of local clone or remote replication). 6. Click the Next button to continue. 176 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 199: Figure 9-19 Create A Volume In Thin Provisioning Pool Step 2

    Figure 9-19 Create a Volume in Thin Provisioning Pool Step 2 7. Volume advanced settings can also be configured optionally in this step: 。 Block Size: The options are 512 Bytes to 4,096 Bytes. 。 Priority: The options are High, Medium, and Low. The priority compares to other volumes.
  • Page 200 10. The volume has been created. It will be initialized in protection RAID level (e.g., RAID 1, 3, 5, 6, 0+1, 10, 30, 50, and 60). Figure 9-21 A Volume in Thin Provisioning Pool is Created 178 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 201: List Volumes And Operations On Volumes

    11. A volume has been created. If necessary, click the Create Volume button again to create others. TIP: SANOS supports instant RAID volume availability. The volume can be used immediately when it is initializing or rebuilding. 9.4.2. List Volumes and Operations on Volumes Most operations are described in the chapter 8.5, Configuring Volumes section.

  • Page 202: Configure Lun Mappings And Connect By Host Initiator

    LUN mapping, please refer to the chapter 8.6, Configure LUN Mappings section. For more information about host initiator, please refer to the chapter 8.7, Connect by Host Initiator section. 180 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 203: Ssd Cache

    SSD cache; the write data that is stored to the SSD cache temporary and then flush to HDDs in bulk. So the application receives an immediate performance boost. QSAN SSD cache enables applications to deliver consistent performance by absorbing bursts of read/write loads at SSD speeds.
  • Page 204 Willing to take a little risk to increase write performance because it’s write cache buffering at SSD cache pool. Of course, these write data in SSD cache can be used at the next read. 182 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 205: Theory Of Operation

    10.2. Theory of Operation SSD cache allows an SSD to function as read cache or write buffer for a HDD volume. In SSD read cache, it is a secondary cache that improves performance by keeping frequently accessed data on SSDs where they are read far more quickly than from the HDD volume. When reads or writes are performed, the data from the HDDs are copied into the SSD cache.

  • Page 206: Ssd Cache Pool Architecture

    SSDs at a time. The SSD read-write cache pool can be set SSDs as dedicated hot spares. The maximum dedicated spare SSD quantity in an SSD cache pool is 4. 184 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 207: Table 10-2 Ssd Cache Parameters

    TIP: Note that the capacity allocated to the SSD cache pool is not counted in the regular data storage. The volumes in pool can be selected to enable SSD cache function. The following is the relationship between SSD cache pool and storage pool. Figure 10-3 The Relationship between SSD Cache Pool and Storage Pool The volumes enabled SSD cache with hot data will consume the capacity of the SSD cache...

  • Page 208: Raid Level Of Ssd Cache Pool

    Although the SSD read cache is a technique of duplicating data. If the SSD cache pool corrupts, the original data will be safe but stop SSD read cache. SSD read-write cache with NRAID 1+ 186 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 209: Figure 10-5 Ssd Read-Write Cache With Nraid 1

    SSD read-write cache needs data protection, so it usually uses RAID 1 or RAID 10 level to create the SSD cache storage space. Our SSD read-write cache technology uses NRAID 1+ which is parallel NRAID with mirror. Figure 10-5 SSD Read-write Cache with NRAID 1+ RAID 10 creates a striped set from a series of mirrored drives.

  • Page 210: Read/Write Cache Cases

    1. A host requests to read data. The system will check if the requested data is in memory cache or SSD cache. If not, it is called cache miss. 2. Data is read from the HDD volume because of cache miss. 188 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 211: Figure 10-7 Read Data With Cache Hit

    3. The requested data is returned to the host. And the system will check whether the requested data is hot data. 4. If it is, the SSD cache is populated. INFORMATION: The actions that read data from the HDD and then write to the SSD are called populating the cache.

  • Page 212: Figure 10-8 Write Data

    The following figure shows how the controller handles a host write request in SSD read- write cache. The write data stays in the SSD cache for a while, and will be flushed to the HDD volume at the appropriate time. 190 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 213: Figure 10-9 Write Data

    Figure 10-9 Write Data These steps are: 1. A host requests to write data. 2. Data is written to the SSD cache. 3. The status is returned to the host. 4. Data will be flushed to the HDD volume at the appropriate time. Flush Write Data to HDD Volume In SSD read-write cache, the write data will be flushed to the HDD volume in the following situations.

  • Page 214: Populating The Cache

    If a cache hit occurs, the data is immediately returned from the SSD cache and a populate operation is not performed. If the read count is smaller than the threshold, a populate operation is not performed. Write cases are the same scenario as read. 192 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 215: Ssd Cache Tuning

    10.2.6. SSD Cache Tuning The SSD cache can be tuned to maximize its efficiency base on application usage. Cache block size, populate-on-read threshold and populate-on-write-threshold are the main parameters. Cache Block Size A large cache block suits applications where frequently accessed data is close to each other, known as a high locality of reference.

  • Page 216: Configure Ssd Cache

    The SSD cache function is optional. Before using it, you have to enable SSD cache license. Select the Update function tab in the Maintenance function submenu, download Request License file and send to your local sales to obtain a License Key. After getting the license 194 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 217: Create An Ssd Cache Pool

    key, click the Choose File button to select it, and then click the Apply button to enable. When the license is enabled, please reboot the system. Each license key is unique and dedicated to a specific system. If you have already enabled, this option will be invisible. Figure 10-11 Enable SSD Cache License 10.3.2.

  • Page 218: Figure 10-12 Create An Ssd Cache Pool Step 1

    5. Please select SSDs for SSD cache pool. Maximum quantity of disk is 8. Select an Enclosure from the drop-down list to select SSDs from expansion enclosures. 6. Click the Next button to continue. 196 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 219: Figure 10-13 Create An Ssd Cache Pool Step 2

    Figure 10-13 Create an SSD Cache Pool Step 2 7. Select a Pool Name from the drop-down list which lists available pools to be assigned to. 8. Within the pool, check Volumes to enable SSD cache, uncheck Volumes to disable. 9.

  • Page 220: Figure 10-14 Create An Ssd Cache Pool Step 3

    11. An SSD cache pool has been created. 12. Follow the step 1 to 11 to create another SSD cache pool with Read-write Cache (NRAID 1+) and set the I/O type as File System. 198 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 221: List Ssd Cache Pools

    Figure 10-16 Another SSD Cache Pool is Created TIP: The Create SSD Cache Pool button will be gray out when meet the following conditions. There are no available SSDs which can be created an SSD cache pool.  There are no available pools which can be assigned to the SSD cache ...

  • Page 222: Figure 10-17 List Ssd Cache Pools

    The reason could be missing or failed SSDs. Total Total capacity of the SSD cache pool. Cache Type The SSD cache type: Disabled.  Enabled.  RAID The RAID level of the SSD cache pool: 200 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 223: Figure 10-19 Ssds Column Descriptions

    NRAID+: SSD read cache.  NRAID 1+: SSD read-write cache.  Pool Name Which pool the SSD cache pool assigns to. I/O Type The I/O type of the SSD cache pool: Database.  File System.   Web Service.  Customization.

  • Page 224: Operations On Ssd Cache Pools

    For an SSD read cache, click ▼ -> Add / Remove SSDs to add into or remove SSDs from the SSD cache pool. Check SSDs to add into the SSD cache pool, and uncheck SSDs to remove from the SSD cache pool. 202 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 225: Figure 10-21 Add / Remove Ssds From The Ssd Cache Pool

    Figure 10-21 Add / Remove SSDs from the SSD Cache Pool For an SSD read-write cache, click ▼ -> Add SSDs to add SSDs into the SSD cache pool. Please select two SSDs at a time to add into the SSD cache pool. SSD Cache...

  • Page 226: Monitor Ssd Cache Statistics

    More Information of the SSD Cache Pool Click ▼ -> More Information to show the detail information of the SSD cache pool. 10.4. Monitor SSD Cache Statistics This section will describe the monitoring SSD cache statistics. 204 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 227: Figure 10-23 Ssd Cache Function Submenu

    Figure 10-23 SSD Cache Function Submenu Select the SSD Cache Statistics function tab in the SSD Cache function submenu to monitor the SSD cache statistics. Here is an example of monitoring the volume of the SSD read-write cache pool. 1. Select an SSD Cache Pool Name and select an Enabled Volumes which you want to monitor.

  • Page 228: Figure 10-24 Ssd Cache Statistics

    How many cache hits is occurred by the volume? Unit is the number of times Cache Hit Ratio How many cache hit ratio is occurred by the volume? Unit is percentage. 206 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 229: Ssd Cache Notices

    10.5. SSD Cache Notices The following are some notices about SSD cache.  To support SSD cache 2.0, the resources will be redistributed. So executing COLD REBOOT is necessary after upgrade from firmware 1.0.x to 1.1.0. The SSD cache is optional, the SSD cache license can be extended to SSD cache 2.0 ...

  • Page 230: Auto Tiering

    Tier 1: SSD drives for extreme performance tier Tier 2: SAS drives (15K or 10K SAS HDD) for performance tier  Tier 3: Nearline SAS drives (7.2K SAS HDD) for capacity tier  208 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 231: Ssd Cache Vs. Auto Tiering

    Figure 11-1 Auto Tiering Pool 11.1.1. SSD Cache vs. Auto Tiering A key difference between tiering and cache is that tiering moves data to SSD instead of simply caching it. Tiering can also move data both from slower storage to faster storage and vice versa.

  • Page 232: Theory Of Operation

    210 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 233: Auto Tiering Architecture

    11.2.1. Auto Tiering Architecture A newly created auto tiering pool is based on thin provisioning technology. Each tier works based on one or more disk group. Every disk group must have the same disk quantity when creating a tiering pool as a base unit of disk group. Maximum quantity of disk in a disk group is 8.

  • Page 234: Hotness Analysis

    24 hours, the weight of this IO is nearly cut in half and continues to decrease. The reduction weight is processing per hour by our precision algorism. This statistics collection occurs continuously in the background for auto tiering pool. 212 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 235: Relocation

    Ranking This analysis produces a rank ordering of each sub LUN within the pool. Note that the policies of volumes would affect how sub LUNs are ranked. After analysis, the system would generate following information for each tier:  The amount of data to be moved up ...

  • Page 236: Tiering Policies

    This is the recommended policy and it is the default policy for each newly created volume. 214 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.
  • Page 237 Start Highest then Auto Tiering This takes advantage of the both “Highest Available Tier” and “Auto Tiering” policies. “Start Highest then Auto Tiering” sets the preferred tier for initial data allocation to the highest performing disks with available space, and then it relocates the volume’s data based on the performance statistics and the auto-tiering algorithm.

  • Page 238: Configure Auto Tiering Pools

    RAID 5. At the first time of creating an auto tiering pool, it may contain at least 2 tiers (disk groups) and the maximum quantity of disk in a tier (disk group) is 8. 216 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 239: Figure 11-7 Create An Auto Tiering Pool Step 1

    1. Select the Pools function submenu, click the Create Pool button. It will scan available disks first. TIP: It may take 20 ~ 30 seconds to scan disks if your system has more than 200 disk drives. Please wait patiently. Figure 11-7 Create an Auto Tiering Pool Step 1 2.
  • Page 240 RAID 5. If you have 24 bays, you can have a pool with 8x SSDs, 8x SAS HDDs, and 8x NL-SAS HDDs. 7. Click the Next button to continue. 218 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 241: Figure 11-9 Create An Auto Tiering Pool Step 3

    Figure 11-9 Create an Auto Tiering Pool Step 3 8. Select a RAID Level from the drop-down list which lists available RAID level only according to the disk selection. 9. Click the Next button to continue. Auto Tiering...

  • Page 242: Figure 11-10 Create An Auto Tiering Pool Step 4

    。 Enable Disk Standby: Check to enable the auto spin down function of disks. The disks will be spun down for power saving when they are idle for the period of time specified. 11. Click the Next button to continue. 220 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 243: Figure 11-11 Create An Auto Tiering Pool Wizard Step 5

    Figure 11-11 Create an Auto Tiering Pool Wizard Step 5 12. By default, we set relocation schedule at 00:00 daily, relocation period set to 00:00 which means let relocation process run until it finishes, and relocation rate to fast. 13. After confirmation at summary page, click the Finish button to create a pool. Figure 11-12 An Auto Tiering Pool is Created 14.

  • Page 244: List Auto Tiering Pools

    Health The health of the pool:  Good: The pool is good. Failed: The pool is failed.  Degraded: The pool is not healthy and not complete. The reason  222 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 245: Table 11-4 Disk Group Column Descriptions

    could be missing or failed disks. Total Total capacity of the pool. Free Free capacity of the pool. Available Available capacity of the pool. Thin The status of Thin provisioning: Provisioning Disabled.  Enabled.  Auto Tiering The status of Auto Tiering: ...
  • Page 246 Select one of the pools, it will display the related tiering status. The pool properties can be configured by clicking the functions button to the left side of the specific pool. 224 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 247: Operations On Auto Tiering Pools

    Figure 11-14 Auto Tiering Pools and Status This table shows the column descriptions. Table 11-6 Pool Tiering Status Column Descriptions Column Name Description Tier Level Tier categories, there are SSD, SAS, Nearline SAS, and SATA. The system will hide the tiers without any disk groups. Tier Capacity Total capacity of the tier.

  • Page 248: Figure 11-15 Relocation Schedule

    Click ▼ -> Relocate Now to perform relocation right now in an auto tiering pool. Similarly, if Relocation Period sets as 00:00, it will let relocation process run until it finishes. Figure 11-16 Relocate Now 226 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 249: Add A Tier (Disk Group) In An Auto Tiering Pool

    11.3.5. Add a Tier (Disk Group) in an Auto Tiering Pool Here is an example of adding a disk group in thin provisioning pool. 1. Select a pool, click ▼ -> Add Disk Group to add a disk group in the auto tiering pool. Figure 11-17 Add Disk Group 2.

  • Page 250: Hot Spares In An Auto Tiering Pool

    11.4.1. Create a Volume in an Auto Tiering Pool Here is an example of creating a volume in an auto tiering pool. 1. Select the Volumes function submenu, click the Create Volume button. 228 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 251: Figure 11-19 Create A Volume Of Auto Tiering Pool Step 1

    Figure 11-19 Create a Volume of Auto Tiering Pool Step 1 2. Enter a Volume Name for the pool. The maximum length of the volume name is 32 characters. Valid characters are [ A~Z | a~z | 0~9 | -_<> ]. 3.

  • Page 252: Figure 11-20 Create A Volume Of Auto Tiering Pool Step 2

    。 Enable Read-ahead: Check to enable the read ahead function of volume. The system will discern what data will be needed next based on what was just retrieved from 230 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 253: Figure 11-21 Create A Volume Of Auto Tiering Pool Step 3

    disk and then preload this data into the disk's buffer. This feature will improve performance when the data being retrieved is sequential. 。 Enable Space Reclamation: Check to enable the space reclamation function of the volume when the pool is auto tiering. 8.

  • Page 254: List Volumes And Operations On Volumes

    Volumes section. We describe auto tiering operations below. Change Volume Properties Click ▼ -> Change Volume Properties to change the volume properties of the volume. Figure 11-23 Change Volume Properties 232 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 255: Configure Lun Mappings And Connect By Host Initiator

    Reclaim Space with Thin Provisioning Pool Click ▼ -> Space Reclamation to reclaim space from the volume when the volume is in a thin provisioning pool. For more information about space reclamation, please refer to the chapter 9.2.1, Space Reclamation section.

  • Page 256: Figure 11-24 Transfer Thick Provisioning Pool To Auto Tiering Step 1

    The tier (disk group) must be added one at a time. Select three SSDs to add a SSD tier. And then click the OK button. Figure 11-25 Transfer Thick Provisioning Pool to Auto Tiering Step 2 234 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 257: Transfer From Thin Provisioning Pool To Auto Tiering

    3. Use the same procedure to add SAS tier with 3 SAS disk drives. Figure 11-26 Transfer Thick Provisioning Pool to Auto Tiering Step 3 4. Auto Tiering status is Enabled. The thick provisioning pool has been transferred to auto tiering one.

  • Page 258: Figure 11-27 Transfer Thin Provisioning Pool To Auto Tiering Step 1

    In the Auto Tiering option, select Enabled. The tier (disk group) must be added one at a time. Select three SSDs to add a SSD tier. And then click OK button. 236 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 259: Figure 11-28 Transfer Thin Provisioning Pool To Auto Tiering Step 2

    Figure 11-28 Transfer Thin Provisioning Pool to Auto Tiering Step 2 3. Use the same procedure to add SAS tier with three SAS disk drives. Auto Tiering...

  • Page 260: Figure 11-29 Transfer Thick Provisioning Pool To Auto Tiering Step 3

    4. The thin provisioning pool has been transferred to auto tiering one. CAUTION: The action of transferring from the thin provisioning pool to auto tiering is irreversible. Please consider carefully all possible consequences before taking this step. 238 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 261: Data Backup

    12. Data Backup This chapter describes an overview and operations of data backup options in SANOS. SANOS provides built-in data backup services for protecting data from most unpredictable accidents including:  Volume snapshot which is described in the Managing Snapshots section.

  • Page 262: Figure 12-1 Copy-On-Write Technology

    LUN instead of rolling back the snapshot and overwriting the existing source codes. 240 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 263: Figure 12-2 Volume Shadow Copy Services Workflow

    Integration with Windows VSS (Volume Shadow Copy Services) Snapshot is fully compatible with Windows VSS (Volume Shadow Copy Services). VSS is a host memory flush mechanism for creating consistent point in time copies of data known as “shadow copies”. A Windows agent utility is provided to bridge and synchronize the information between the SAN system and Windows operating system.

  • Page 264: Configure Snapshot

    1. There are two methods to set snapshot space. Select the Snapshots function submenu, click the Set Snapshot Space button. Or select the Volumes function submenu, selects a volume, then click ▼ -> Set Snapshot Space. Figure 12-4 Set Snapshot Space 242 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 265: Figure 12-5 Take Snapshot

    2. Enter a Capacity which is reserved for the snapshot space, and then click the OK button. The minimum capacity is suggested to set 20% of the volume. Now there are two capacities in Snapshot Space column in the Volumes function tab. The first capacity is current used snapshot space, and the second capacity is reserved total snapshot space.
  • Page 266 Mapped: The snapshot is mapped a LUN. Time Created The created time of the snapshot. Select the Volumes function submenu, selects a volume, then click ▼ -> List Snapshots. Figure 12-7 List Snapshots 244 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 267: Figure 12-8 Set Writable Snapshot Capacity To Expose Snapshot

    Expose Snapshot Here’s an example of exposing a snapshot. 1. Select the Snapshots function submenu, click ▼ -> Expose Snapshot to set writable snapshot capacity to expose the snapshot. Figure 12-8 Set Writable Snapshot Capacity to Expose Snapshot 2. Enter a Capacity which is reserved for the snapshot. If the size is 0, the exposed snapshot will be read only.

  • Page 268: Configure Rollback Snapshot

    Before executing rollback, it is better that the disk is unmounted on the host computer for flushing data from cache. When a snapshot has been rolled-back, the related snapshots which are 246 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 269: Configure Schedule Snapshots

    earlier than it will also be removed. But the rest snapshots will be kept after rollback. 12.1.4. Configure Schedule Snapshots The snapshots can be taken by schedule such as hourly or daily. Please follow the procedures. 1. There are two methods to set schedule snapshots. Select the Snapshots function submenu, click the Schedule Snapshots button.

  • Page 270: Snapshot Notices

    (write cache) into disk before taking snapshot. 248 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 271: Figure 12-10 Host Data I/O Route

    It is a coordinator between backup software, application (SQL or Exchange…) and storage systems to make sure snapshots can occur without the problem of data-irregularities. For more information about the VSS, please refer to http://technet.microsoft.com/en-us/library/cc785914.aspx. QSAN storage systems fully support Microsoft VSS. Run Out of Snapshot Space Before using snapshot, a snapshot space is needed from pool capacity.

  • Page 272: Managing Local Clones

    Manual and scheduled tasks are available for management flexibility. In the event that the source volume is broken and it fails, IT managers can quickly switch to the cloned volume and resume data services. 250 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 273: Theory Of Operation

    Figure 12-11 Local Clone Diagram 12.2.1. Theory of Operation At the beginning, copy all data from the source volume to target. It is also called full copy. Afterwards, take a snapshot on source volume and then copy delta data to perform the incremental copy.
  • Page 274 Notice that the data in original volume will be destroyed. You have to comprehensive consideration before doing. 3. Or create a new target volume to backup to. 252 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 275: Configure Local Clone

    Figure 12-13 Rollback Local Clone 12.2.2. Configure Local Clone Create a Local Clone Task Here’s an example of creating a local clone from source volume to target one. Assume that we define the name in the example.  Source Volume Name: Source-Vol-1 Target Volume: Name: Target-Vol-2 ...

  • Page 276: Figure 12-14 Create Target Volume

    Figure 12-15 List Source and Target Volumes for Local Clone 2. Select the source volume, and then click ▼ -> Create Local Clone. 3. Select a target volume, and then click the OK button. 254 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 277: Figure 12-16 Create Local Clone

    Figure 12-16 Create Local Clone TIP: The volume type of the target volume should be set as Backup Volume. Please refer to the chapter 8.5.1, Create a Volume in the Storage Management chapter. 4. At this time, if the source volume has no snapshot space, it will be allocated snapshot space for clone usage automatically.

  • Page 278: Configure Schedule Local Clone Tasks

    The clone task can be set by schedule such as hourly or daily. Please follow the procedures. 1. Select the source volume, and then click ▼ -> Schedule Local Clone. 256 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 279: Local Cloning Options

    Figure 12-18 Schedule Local Clone 2. Check the schedules which you want. They can be set by monthly, weekly, daily, or hourly. Click the OK button to apply. INFORMATION: Daily snapshots will be taken at 00:00 daily. Weekly snapshot will be taken every Sunday at 00:00. Monthly snapshot will be taken every first day of the month at 00:00.

  • Page 280: Figure 12-19 Local Cloning Options

    That is the best value of our suggestion. If user sets snapshot space manually and lower than the default value, understand that if the snapshot space is not enough, the clone task will fail. 258 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 281: Local Clone Notices

    12.2.5. Local Clone Notices While the clone is processing manually, the incremental data of the volume is over the snapshot space. The clone will complete the task, but the clone snapshot will fail. At the next time, when trying to start clone, it will get a warning message “There is not enough of snapshot space for the operation”.

  • Page 282: Remote Replication Topologies

    Figure 12-22 One-Directional Remote Replication A Source Volume (S) in Site A is replicating to a Target Volume (T) in Site B. This is the most basic remote replication topology. 260 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 283: Figure 12-23 Bi-Directional Remote Replication

    Bi-Directional Figure 12-23 Bi-Directional Remote Replication Each system in a two system topology acts as a replication target for the other’s production data. A Source Volume (S1) in Site A is replicating to a Target Volume (T1) in Site B. And a Source Volume (S2) in Site B is replicating to a Target Volume (T2) in Site A.

  • Page 284: Figure 12-25 Many-To One Remote Replication

    Source Volume (S2) in Site B is replicating to a Target Volume (T2) in Site A. And does S3 to T3, S4 to T4, …, S8 to T8. 262 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 285: Theory Of Operation

    TIP: Note that all supported topologies have a 1-to-1 configuration for each individual replication session in the topology. The maximum replication task quantity per system is 32. It means that 32 systems are the maximum quantity of any many-to-one or one-to-many replication configuration.

  • Page 286: Figure 12-28 Snapshot Function Submenu

    (Maximum Replication Pairs per Source Volume) Maximum Replication Task Quantity per System Maximum Traffic Shaping Quantity per System Maximum iSCSI Multi-path Quantity in Replication Task Maximum iSCSI Multiple Connection Quantity per Replication Task Path 264 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 287: Configure Remote Replication

    12.3.3. Configure Remote Replication Create a Remote Replication Task Here’s an example of creating a remote replication task from source volume to target one. Assume that we define the name and the IP addresses in the example. Figure 12-29 Example of Creating a Remote Replication Task Site A Source Unit Configuration: Controller 1, Onboard LAN 1 IP Address: 10.10.1.1 ...

  • Page 288: Figure 12-30 Create Target Volume In Site B

    3. Map a LUN of the target volume. Please refer to the chapter 8.6, Configure LUN Mappings section in the Storage Management chapter. Operate web UI of Site A source unit: 4. Select the Remote Replications function submenu, click the Create button. 266 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 289: Figure 12-32 Create A Remote Replication Task Step 1

    Figure 12-32 Create a Remote Replication Task Step 1 5. Select a source volume, and then click the Next button. Data Backup...

  • Page 290: Figure 12-33 Create A Remote Replication Task Step 2

    Leave the setting of the Source Port to Auto if you don’t want to assign a fixed one. The system will try to connect to the target IP address automatically. 268 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 291: Figure 12-34 Create A Remote Replication Task Step 3

    Figure 12-34 Create a Remote Replication Task Step 3 7. Select an Authentication Method and input the CHAP Username and CHAP Password if needed. Select a Target Name, and then click the Next button. TIP: This CHAP account is the iSCSI authentication of the Site B target unit. For more information about CHAP, please refer to the chapter 7.3.4, Configure iSCSI CHAP Accounts section in the Host Configuration...

  • Page 292: Figure 12-35 Create A Remote Replication Task Step 4

    9. The replication task is created. At this time, if the source volume has no snapshot space, it will be allocated snapshot space for replication usage automatically. The size will depend on the parameter of replication options. 270 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 293: Configure Traffic Shaping

    Start Remote Replication Task To start the remote replication task, please follow the procedures. Launch the SANOS web UI of Site A source unit: 1. Select the Remote Replications function submenu, select the task, and then click ▼ -> Start. 2.

  • Page 294: Figure 12-37 Shaping Setting Configuration

    To set a shaping group on the remote replication task, please follow the procedures. Operate web UI of Site A source unit: 1. Select the Remote Replications function submenu, select the task, and then click ▼ -> Set Traffic Shaping. 272 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 295: Configure Schedule Remote Replication Tasks

    Figure 12-38 Set Traffic Shaping 2. Select a Shaping Group from the drop down list. And then click the OK button. 3. The shaping group is applied to the remote replication task. 12.3.5. Configure Schedule Remote Replication Tasks The replication task can be set by schedule such as hourly or daily. Please follow the procedures.

  • Page 296: Replication Options

    Figure 12-39 Schedule Remote Replication 12.3.6. Replication Options Select the Remote Replications function submenu, click the Replications Options button. There are three options, described in the following. Figure 12-40 Replication Options 274 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 297: Configure Mpio In Remote Replication Task

    Automatic Snapshot Space Allocation Ratio: This setting is the ratio of the source  volume and snapshot space. If the ratio is set to 2, when there is no snapshot space assigned for the volume, the system will automatically reserve a free pool space to set as the snapshot space with twice capacity of the volume.

  • Page 298: Figure 12-41 Remote Replication Mpio Diagram

    In another scenario, when controller1 fails on the target unit, the replication connection will be failed over to the second path from the controller 1 of the source unit to controller 2 of target unit. 276 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 299: Figure 12-43 Remote Replication Target Controller Fail Diagram

    Figure 12-43 Remote Replication Target Controller Fail Diagram Add Multipath in Remote Replication Task Here’s an example of adding the second path in the remote replication. Assume that we define the IP addresses in the example. Site A Source Unit Configuration: ...

  • Page 300: Figure 12-44 Add Multipath In Remote Replication Step 1

    2. Select the Source Port and input the Target IP Address, and then click the Next button. TIP: Leave the setting of Source Port to Auto if you don’t want to assign. The system will try to connect to the target IP address automatically. 278 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 301: Figure 12-45 Add Multipath In Remote Replication Step 2

    Figure 12-45 Add Multipath in Remote Replication Step 2 3. Select an Authentication Method and input the CHAP Username and CHAP Password if needed. Select a Target Name, and then click the Next button. TIP: This CHAP account is the iSCSI authentication of the Site B target unit. For more information about CHAP, please refer to the chapter 7.3.4, Configure iSCSI CHAP Accounts section in the Host Configuration...

  • Page 302: Figure 12-46 Add Multipath In Remote Replication Step 3

    Figure 12-46 Add Multipath in Remote Replication Step 3 4. Select a Target LUN in Site B target unit. Finally, click Finish button. Figure 12-47 List Multipath in Remote Replication Task 280 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 303: Configure Mc/S In Remote Replication Task Path

    5. The second path in remote replication task is added. Delete Multipath in Remote Replication Task To delete multi path of the replication task, please follow the procedures. Operate web UI of Site A source unit: 1. Select the Remote Replications function submenu, select the task path, and then click ▼...

  • Page 304: Figure 12-48 Add Path Connection

    Leave the setting of Source Port to Auto if you don’t want to assign. The system will try to connect to the target IP address automatically. Figure 12-49 List Multiple Connections in Remote Replication Task Path 282 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 305: Figure 12-50 Delete Path Connection

    3. The second connection in remote replication task path is added. If necessary, click ▼ -> Add Connection to add another. Delete Connections in Remote Replication Task Path To delete multi connections per session of the replication task path, please follow the procedures.

  • Page 306: Local Clone Transfers To Remote Replication

    Finally, turn the local clone task into remote replication task with differential copy afterward. Figure 12-51 Local Clone Transfers to Remote Replication Diagram 284 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 307: Figure 12-52 List Source And Target Volumes For Local Clone

    To do that volume disk local clone transfers to remote replication, please follow the procedures. Launch SANOS web UI of Site A source unit: 1. Select the Volumes function submenu, select a source volume, and click ▼ -> Create Local Clone to create a local clone task. For more information about local clone, please refer to the chapter 12.2.2, Configure Local Clone section.

  • Page 308: Figure 12-53 Rebuild Clone Relationship Step 1

    Figure 12-53 Rebuild Clone Relationship Step 1 11. Select a source volume, and then click the Next button. 286 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 309: Figure 12-54 Rebuild Clone Relationship Step 2

    Figure 12-54 Rebuild Clone Relationship Step 2 12. Select the Source Port and input the Target IP Address, and then click the Next button. TIP: Leave the setting of Source Port to Auto if you don’t want to assign a fixed one.

  • Page 310: Figure 12-55 Rebuild Clone Relationship Step 3

    For more information about CHAP, please refer to the chapter 7.3.4, Configure iSCSI CHAP Accounts section in the Host Configuration chapter. Select No Authentication Method if there is no CHAP enabled on the Site B target unit. 288 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 311: Figure 12-56 Rebuild Clone Relationship Step 4

    Figure 12-56 Rebuild Clone Relationship Step 4 14. Select a Target LUN in Site B target unit. Finally, click the Finish button. Figure 12-57 Remote Replication Task is Created 15. The replication task from local clone is created. Data Backup...

  • Page 312: Monitoring

    Select the Event Logs function tab in the Log Center function submenu to show event messages. Select or unselect the checkbox of Information, Warning, or Error levels to show or hide those particular events. Figure 13-1 Log Center Function Submenu Figure 13-2 Event Logs 290 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 313: Operations On Event Logs

    The event logs are displayed in reverse order which means the latest event log is on the first / top page. They are actually saved in the first four disk drives of the head unit, each disk drive has one copy of event log. For one system, there are four copies of event logs to make sure users can check event log any time when there are failed disks.

  • Page 314: Monitoring Enclosures

    Enclosure Function Submenu 13.2.1. Hardware Monitoring Select the Hardware Monitoring function tab in the Enclosures function submenu shows the information of current voltages, temperatures, status of power supply’s, and fan modules. 292 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 315: Figure 13-5 Hardware Monitoring

    Figure 13-5 Hardware Monitoring Monitoring...

  • Page 316: Configuring Ses

    Select SES function tab in Enclosure function submenu to enable or disable the management of SES. Enable SES will map an iSCSI LUN or a FC LUN. 294 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 317: Figure 13-6 Enable Ses

    Enable SES Here’s an example of enabling SES. 1. Select SES function tab in Enclosure function submenu, click the Enable SES button. Figure 13-6 Enable SES 2. Select the Protocol as iSCSI. 3. Enter the Allowed Hosts with semicolons (;) or fill-in wildcard (*) for access by all hosts.

  • Page 318: Performance Monitoring

    Select the Disks function tab in the Performance function submenu to display the throughput and latency of the disk drives. Check the slots which you want to monitor. CAUTION: Enabling performance monitoring will reduce I/O performance. Please use with caution. 296 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 319: Iscsi Port Performance Monitoring

    Figure 13-9 Disk Performance Monitoring 13.3.2. iSCSI Port Performance Monitoring Select the iSCSI function tab in the Performance function submenu to display TX (Transmission) and RX (Reception) of the iSCSI ports. Check the interfaces which you want to monitor. Monitoring...

  • Page 320: Fibre Channel Port Monitoring

    13.3.3. Fibre Channel Port Monitoring Select the Fibre Channel function tab in the Performance function submenu display TX (Transmission) and RX (Reception) of the fibre channels. Check the interfaces which you want to monitor. 298 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 321: Troubleshooting

    14. Troubleshooting This chapter describes how to perform troubleshooting of software. Hardware troubleshooting is described in the chapter 6, Quick Maintenance in the XCubeSAN Hardware Owner’s Manual. 14.1. Fault Isolation Methodology This section presents the basic methodology used to quickly locate faults within the storage system.

  • Page 322: Diagnostic Steps

    Auto-Rebuild process as well. Auto-Rebuild feature only works at that the status of pool is Online. Thus, it will not conflict with the online roaming feature. 300 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 323: Table 14-1 Raid Rebuild

    3. In degraded mode, the health of the pool is Degraded. When rebuilding, the status of pool and volume disk will display Rebuilding, the column R% in volume will display the ratio in percentage. After complete rebuilding, the status will become Online. TIP: The dedicated spare cannot be set if there is no pool or the pool is set to RAID level 0.

  • Page 324: Volume Restoration

    The original volume name. Volume Capacity The original capacity of the volume. Disks Used The original quantity of physical disk in the pool. Disk Slot The original physical disk locations. 302 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 325: Configure Volume Restoration

    Time The last action time of the volume. Event Logs The last event of the volume. TIP: When attempting data recovery, the same volume configurations as the original must be set and all member disks must be installed by the same sequence as original.

  • Page 326: Support And Other Resources

    (End-User Registration). We recommend registering your product in QSAN partner website for firmware updates, document download, and latest news in eDM. To contact QSAN Support, please use the following information. Via the Web: https://qsan.com/support  Via Telephone: +886-2-7720-2118 extension 136 ...

  • Page 327: Figure 15-1 Download Service Package In The Sanos Ui

    Figure 15-1 Download Service Package in the SANOS UI Support and Other Resources...

  • Page 328: Online Customer Support

    Please follow the procedures below to setup the online help environment for QSAN support team. The following procedure will help you to setup the serial console via the console cable that is enclosed in the shipping carton.
  • Page 329 2. You must use terminal software such as HyperTerminal or Putty to open the console after the connection is made. INFORMATION: For more information about terminal software, please refer to HyperTerminal: http://www.hilgraeve.com/hyperterminal/ PuTTY: http://www.putty.org/ 3. Here we first demonstrate HyperTerminal. The console settings are on the following. Baud rate: 115200, 8 data bit, no parity, 1 stop bit, and no flow control Terminal type: vt100 Support and Other Resources...

  • Page 330: Figure 15-4 The Procedures Of Setup Serial Console By Hyperterminal

    Figure 15-4 The Procedures of Setup Serial Console by HyperTerminal 4. If you are using PuTTY instead, please refer to below 308 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.
  • Page 331 Support and Other Resources...

  • Page 332: Accessing Product Updates

    1. Please download the TeamViewer from following hyper link: https://www.teamviewer.com/en/download/ 2. Install TeamViewer. 3. Please provide the ID/password showed on the application to QSAN support team member to join the online support session. 15.3. Accessing Product Updates To download product updates, please visit QSAN website: https://qsan.com/download...

  • Page 333: Documentation Feedback

    15.4. Documentation Feedback QSAN is committed to providing documentation that meets and exceeds your expectations. To help us improve the documentation, email any errors, suggestions, or comments to docsfeedback@qsan.com. When submitting your feedback, include the document title, part number, revision, and publication date located on the front cover of the document.

  • Page 334: Appendix

    Set the volume to be Read-Only. Dedicated Spare disks. The spare disks are only used by one specific 312 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.
  • Page 335 RAID group. Others could not use these dedicated spare disks for any rebuilding purpose. Local Spare disks. The spare disks are only used by the RAID groups of the local enclosure. Other enclosure could not use these local spare disks for any rebuilding purpose. Global Spare disks.
  • Page 336 (“IHVs”) and system vendors. 6G MUX Bridge board is for SATA II disk to support dual controller mode. 314 © Copyright 2017 QSAN Technology, Inc. All Right Reserved.

  • Page 337: End-User License Agreement (Eula)

    EULA. Any right beyond this EULA will not be granted. Intellectual Property Right Intellectual property rights relative to the Product are the property of QSAN or its licensor(s). User will not acquire any intellectual property by this EULA.

  • Page 338: Limitation Of Liability

    WARRANTY OF ANY KIND. QSAN MAKES NO WARRANTY THAT THE PRODUCT WILL BE FREE OF BUGS, ERRORS, VIRUSES OR OTHER DEFECTS. IN NO EVENT WILL QSAN BE LIABLE FOR THE COST OF COVER OR FOR ANY DIRECT, INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL, CONSEQUENTIAL OR SIMILAR DAMAGES OR...
  • Page 339 This EULA shall be governed by and constructed according to the laws of R.O.C. Any  disputes arising from or in connection with this EULA, User agree to submit to the jurisdiction of Taiwan Shilin district court as first instance trial. Appendix...

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