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Rocstor Enteroc iS1030 User Manual

Raid storage system
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Enteroc iS1030 iSCSI
RAID Storage System
User Manual
Revision 1.0

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Summary of Contents for Rocstor Enteroc iS1030

  • Page 1 Enteroc iS1030 iSCSI RAID Storage System User Manual Revision 1.0...

  • Page 2: Table Of Contents

    iSCSI GbE to 6G SAS/SATA RAID Subsystem Table of Contents Preface ..........................7  Before You Begin ......................8  Safety Guidelines ................................8   Controller Configurations ............................8   Packaging, Shipment and Delivery ........................8   Chapter 1 Introduction ....................10  Technical Specifications ............................
  • Page 3 iSCSI GbE to 6G SAS/SATA RAID Subsystem 4.1.3 LCD Control Module (LCM) ........................34 4.1.4 Web GUI ................................37 How to Use the System Quickly ........................39 4.2.1 Quick Installation ............................39 4.2.2 Volume Creation Wizard ..........................43 Chapter 5 Configuration ....................
  • Page 4 iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.6.2 Event Log ................................88 5.6.3 Upgrade ................................89 5.6.4 Firmware Synchronization (Only available in Dual controller models) ........91 5.6.5 Reset to Factory Default ..........................92 5.6.6 Configuration Backup ..........................92 5.6.7 Volume Restoration .............................
  • Page 5 iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.9.2 Ownership ..............................114 6.9.3 Controller Status ............................114 6.9.4 Change Controller Mode ......................... 115 6.9.5 Recommend iSNS Server ......................... 115 6.10 Snapshot / Rollback ............................116 6.10.1 Take a Snapshot............................117 6.10.2 Cleanup Snapshots ..........................
  • Page 6 iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.14.2 Methodology .............................. 143 6.14.3 Populating the Cache ..........................144 6.14.4 Read/Write Cache Cases ........................144 6.14.5 I/O Type ................................ 147 6.14.6 Configuration ............................. 149 6.14.7 Constraint ..............................149 Chapter 7 Troubleshooting ..................150  7.1 System Buzzer ..............................

  • Page 7: Preface

    Copyright 2017 Rocstor. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written consent.

  • Page 8: Before You Begin

    iSCSI GbE to 6G SAS/SATA RAID Subsystem Before You Begin Before going through with this manual, you should read and focus to the following safety guidelines. Notes about the subsystem’s controller configuration and the product packaging and delivery are also included. Safety Guidelines To provide reasonable protection against any harm on the part of the user and to obtain maximum performance, user is advised to be aware of the following safety...
  • Page 9 iSCSI GbE to 6G SAS/SATA RAID Subsystem The shipping package contains the following: RAID Subsystem Unit Two (2) power cords One (1) Ethernet LAN cable for single controller Note: Two (2) Ethernet LAN cables for dual controller One (1) LC-LC Fibre Optical Cable for single controller Note: Two(2) LC-LC Fibre Optical Cables for dual controller...

  • Page 10: Chapter 1 Introduction

    iSCSI GbE to 6G SAS/SATA RAID Subsystem Chapter 1 Introduction The RAID Subsystem Unparalleled Performance & Reliability Support Dual-active controllers  Supports 802.3ad port trunking, Link Aggregation Control Protocol (LACP) with  VLAN High data bandwidth of system architecture by powerful INTEL 64-bit RAID ...
  • Page 11 iSCSI GbE to 6G SAS/SATA RAID Subsystem Features 3U 16Bay rack-mount redundant RAID subsystem with SBB compliant controller.  Supports iSCSI jumbo frame  Supports Microsoft Multipath I/O (MPIO), MC/S  Supports RAID levels 0, 1, 0+1, 3, 5, 6, 10, 30, 50, 60 and JBOD ...

  • Page 12: Technical Specifications

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 1.1 Technical Specifications RAID Controller iSCSI - 6G SAS Controller Single / Dual (Redundant) Host Interface 2 x 10GbE + 2 x 1GbE (per Controller) Disk Interface 6Gb SAS or 6Gb SATA SAS expansion One 6Gb SAS (SFF-8088) (per controller) Processor Type Intel S1200 Series...
  • Page 13 iSCSI GbE to 6G SAS/SATA RAID Subsystem Thin Provision Local Clone Remote Replication VAAI (vStorage APIs for Array Integration S.M.A.R.T. support Snapshot rollback mechanism support Platform Rackmount Form Factor # of Hot Swap Trays Tray Lock Disk Status Indicator Access / Fail LED Backplane SAS II / SATA III Single BP # of PS/Fan Modules...

  • Page 14: Terminology

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 1.2 Terminology The document uses the following terms: RAID Redundant Array of Independent Disks. There are different RAID levels with different degree of data protection, data availability, and performance to host environment. The Physical Disk belongs to the member disk of one specific RAID group.
  • Page 15 iSCSI GbE to 6G SAS/SATA RAID Subsystem DeGraded mode. Not all of the array’s member disks are functioning, but the array is able to respond to application read and write requests to its virtual disks. SCSI Small Computer Systems Interface. Serial Attached SCSI.

  • Page 16: Raid Levels

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 1.3 RAID Levels The subsystem can implement several different levels of RAID technology. RAID levels supported by the subsystem are shown below. RAID Level Description Min. Drives Block striping is provide, which yields higher performance than with individual drives.

  • Page 17: Volume Relationship Diagram

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 1.4 Volume Relationship Diagram This is the design of volume structure of the RAID subsystem. It describes the relationship of RAID components. One RG (RAID Group) is composed of several PDs (Physical Disks). One RG owns one RAID level attribute. Each RG can be divided into several VDs (Virtual Disks).

  • Page 18: Chapter 2 Identifying Parts Of The Raid Subsystem

    iSCSI GbE to 6G SAS/SATA RAID Subsystem Chapter 2 Identifying Parts of the RAID Subsystem The illustrations below identify the various parts of the subsystem. 2.1 Main Components 2.1.1 Front View User Manual...

  • Page 19: Disk Trays

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 2.1.1.1 Disk Trays HDD Status Indicator Function Part This LED will blink blue when the hard drive is being accessed. HDD Activity LED Green LED indicates power is on and hard drive status is good for this slot.

  • Page 20: Lcd Front Panel

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 2.1.1.2 LCD Front Panel Smart Function Front Panel The smart LCD panel is an option to configure the RAID subsystem. If you are configuring the subsystem using the LCD panel, press the Select button to login and configure the RAID subsystem.

  • Page 21: Rear View

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 2.1.2 Rear View 1. Controller Module The subsystem has one / two controller modules. 2. Power Supply Unit 1 ~ 2 Two power supplies (power supply 1 and power supply 2) are located at the rear of the subsystem.

  • Page 22: Controller Module

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 2.2 Controller Module The RAID system includes single/dual iSCSI-to-6Gb SAS/SATA RAID Controller Module. 1. 10GbE iSCSI Ports (10 Gigabit) Each controller is equipped with two 10GbE LAN data ports (LAN1 and LAN2) for iSCSI connection.
  • Page 23 iSCSI GbE to 6G SAS/SATA RAID Subsystem 7. BBM Status LED (when status button pressed) Green: BBM installed and powered.  Off: No BBM installed.  8. BBM Status Button (Used to check the battery when the power is off.) When the system shut down abnormally, press the BBM status button, if the BBM LED is Green, then the BBM still has power to keep data on the cache.

  • Page 24: Power Supply / Fan Module (Psfm)

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 2.3 Power Supply / Fan Module (PSFM) The RAID subsystem contains two 460W Power Supply / Fan Modules. All the Power Supply / Fan Modules (PSFMs) are inserted into the rear of the chassis. 2.3.1 PSFM Panel The panel of the Power Supply/Fan Module contains: the Power On/Off Switch, the AC Inlet Plug, FAN fail Indicator, and a Power On/Fail Indicator showing the Power...
  • Page 25 iSCSI GbE to 6G SAS/SATA RAID Subsystem NOTE: Each PSFM has one Power Supply and one Fan. The PSFM 1 has Power#1 and Fan#1. The PSFM 2 has Power#2 and Fan#2. When the Power Supply of a PSFM fails, the PSFM need not be removed from the slot if replacement is not yet available.

  • Page 26: Chapter 3 Getting Started With The Subsystem

    iSCSI GbE to 6G SAS/SATA RAID Subsystem Chapter 3 Getting Started with the Subsystem 3.1 Powering On 1. Plug in the power cords into the AC Power Input Socket located at the rear of the subsystem. NOTE: The subsystem is equipped with redundant, full range power supplies with PFC (power factor correction).

  • Page 27: Installing A Sas Disk Drive In A Disk Tray

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 3.2.1 Installing a SAS Disk Drive in a Disk Tray 1. Unlock the Disk Trays using a flat-head screw driver by rotating the Lock Groove. 2. Press the Tray Open button and the Disk Tray handle will flip open. Tray Open Button...
  • Page 28 iSCSI GbE to 6G SAS/SATA RAID Subsystem Tray Hole A NOTE: All the disk tray holes are labelled accordingly. 5. Slide the tray into a slot. 6. Press the lever in until you hear the latch click into place. The HDD Fault LED will turn green when the subsystem is powered on and HDD is good.

  • Page 29: Installing A Sata Disk Drive (Dual Controller Mode) In A Disk Tray

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 3.2.2 Installing a SATA Disk Drive (Dual Controller Mode) in a Disk Tray 1. Remove an empty disk tray from the subsystem. 2. Prepare the dongle board, the Fixed Bracket, and screws. Fixed Bracket Dongle Board Screws 3.
  • Page 30 iSCSI GbE to 6G SAS/SATA RAID Subsystem 4. Place the Fixed Bracket with the dongle board in the disk tray as shown. User Manual...
  • Page 31 iSCSI GbE to 6G SAS/SATA RAID Subsystem 5. Turn the tray upside down. Align the holes of the Fixed Bracket in the two Hole d of the disk tray. Tighten two screws to secure the Fixed Bracket into the disk tray. Tray Hole d NOTE: All the disk tray holes are labelled accordingly.
  • Page 32 iSCSI GbE to 6G SAS/SATA RAID Subsystem 7. Turn the disk tray upside down. Align the four screw holes of the SATA disk drive in the four Hole B of the disk tray. To secure the disk drive into the disk tray, tighten four screws on these holes of the disk tray.

  • Page 33: Chapter 4 Quick Setup

    iSCSI GbE to 6G SAS/SATA RAID Subsystem Chapter 4 Quick Setup 4.1 Management Interfaces There are three management methods to manage the RAID subsystem described as follows: 4.1.1 Serial Console Port Use NULL modem cable to connect console port. The console settings are on the following: Baud rate: 115200, 8 bits, 1 stop bit, and no parity.

  • Page 34: Lcd Control Module (Lcm)

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 4.1.3 LCD Control Module (LCM) After booting up the system, the following screen shows management port IP and model name: 192.168.10.50 Model Name Press “ ”, the LCM functions “Alarm Mute”, “Reset/Shutdown”, “Quick Install”, “View IP Setting”, “Change IP Config”...
  • Page 35 iSCSI GbE to 6G SAS/SATA RAID Subsystem The following is LCM menu hierarchy. [Firmware Version x.x.x] [System Info.] [RAM Size xxx MB] [Alarm Mute] [Yes No] [Reset] [Yes No] [Reset/Shutdown] [Shutdown] [Yes No] RAID 0 RAID 1 RAID 3 [Quick Install] RAID 5 [Apply The [Yes...
  • Page 36 iSCSI GbE to 6G SAS/SATA RAID Subsystem Local Slot <n>: Phy. Disk Temp. <nn> [Enc. Local Management] Cooling FAN<n>: <nnnn> RPM Local Power Supply PSU<n>: <status> [Reset to Default] [Yes No] CAUTION! Before power off, it is better to execute “Shutdown” to flush the data from cache to physical disks.

  • Page 37: Web Gui

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 4.1.4 Web GUI The RAID subsystem supports graphical user interface (GUI) to operate the system. Be sure to connect the LAN cable. The default IP setting is DHCP; open the browser and enter: http://192.168.10.50 (Please check the DHCP address first on LCM) Click any function at the first time;...
  • Page 38 iSCSI GbE to 6G SAS/SATA RAID Subsystem There are up to seven indicators and three icons at the top-right corner. The last indicator (Dual controller) is only visible when two controllers are installed. RAID light:  Green  RAID works well. ...

  • Page 39: How To Use The System Quickly

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 4.2 How to Use the System Quickly To help users get started quickly, two guided configuration tools are available in the Web UI and LCM. Quick Installation guides you a easy way to create a volume. Volume Creation Wizard provides a smarter policy to help users to create a volume.
  • Page 40 iSCSI GbE to 6G SAS/SATA RAID Subsystem 3. Confirm or change the management port IP address and DNS server. If you don’t want to use the default DHCP setting, choose either BOOTP or specify a Static IP address. If the default HTTP, HTTPS, and SSH port numbers are not allowed on your network, they can be changed here as well. 4. For iSCSI Configurations, use this step to set up the data port iSCSI IP address, and then click Next button. User Manual...
  • Page 41 iSCSI GbE to 6G SAS/SATA RAID Subsystem Choose a RAID Level. The number in the brackets is the maximum capacity at the RAID level. This  step  utilizes  all  drives  in  the  storage  system  as  well  as  any  JBOD  expansion  arrays present. This option allows the selection of the RAID type and the number of drives in each array. User Manual...
  • Page 42 iSCSI GbE to 6G SAS/SATA RAID Subsystem 6. Verify all items, and then click Finish button to complete the quick installation. The iSCSI information is only displayed when iSCSI controllers are used. Use Back button to return to a previous page to change any setting. User Manual...

  • Page 43: Volume Creation Wizard

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 4.2.2 Volume Creation Wizard The Volume Creation Wizard provides a smarter policy to determine all possibilities and volume sizes in the different RAID levels that can be created using the existing free drives. It provides: ...
  • Page 44 iSCSI GbE to 6G SAS/SATA RAID Subsystem 3. Select the default option Maximize the size of the RAID group or manual option Select the number  of  disks  to  use.  From  the  drop‐down  list,  select  either  the  RAID  Group  capacity combination desired. Click Next button to proceed. 4. Enter  the  Volume  Size  (GB)  desired  that  is  less  than  or  equal  to  the  default  available  size shown. Then click Next button.
  • Page 45 iSCSI GbE to 6G SAS/SATA RAID Subsystem 5. Use LBA 64 support? It depends on the operation system. 6. Finally, verify the selections and click Finish button if they are correct. The volume is created and named by the system automatically. It is now available to use. User Manual...

  • Page 46: Chapter 5 Configuration

    iSCSI GbE to 6G SAS/SATA RAID Subsystem Chapter 5 Configuration 5.1 Web GUI Management Interface Hierarchy The below table is the hierarchy of the management GUI. Menu Bar L2, Button or Menu System System Name / Date and Time / System Indication Settings Network MAC Address / IP Address / DNS Server Address /...
  • Page 47 iSCSI GbE to 6G SAS/SATA RAID Subsystem Configuration Show disk size in: < (GB) | (MB) > Disk Health Check / Disk Check Report Options: Set Free Disk / Set Global Spare / Set Local Spare / Set Dedicated Spare / Upgrade / Disk Scrub / Read Error Cleared / Turn [on | off] the Indication LED / More information Show RAID size in: <...
  • Page 48 iSCSI GbE to 6G SAS/SATA RAID Subsystem Temperature (Internal)/(Case): < (C) / (F) > System Download System Information information Event Log Level to Show: < Information | Warning | Error > Event log Download / Mute Buzzer / Clear Controller Module Firmware Update / JBOD Firmware Upgrade Update / Controller Mode Firmware...

  • Page 49: System Configuration

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.2 System Configuration The System Configuration menu option is for accessing the System Settings, Network Settings, Login Settings, Email Notification Settings and Log and Alert Settings option tabs. 5.2.1 System Setting The System Settings tab is used to setup the system name and date. The default system name is composed of the model name and the serial number of this system.

  • Page 50: Network Setting

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.2.2 Network Setting The Network Settings tab is used to view the MAC address and change basic network settings. The options are available on this tab:  Enable dual management ports: This is for dual controller models. Check it to enable dual management ports.  MAC Address: Display the MAC address of the management port in the system.  IP Address: The option can change IP address for remote administration usage. There are three options: DHCP, BOOTP and Specify a Static IP Address. The default setting is DHCP.

  • Page 51: Login Setting

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.2.3 Login Setting The Login Settings tab is used to control access to the storage system. For the security reason, set the auto logout option or set the limit access of one administrator at a time. The other options can change the Admin and User passwords.

  • Page 52: Email Notification Settings

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.2.4 Email Notification Settings The Email Notification Settings tab is used to enter up to three email addresses for receiving the event notifications. Fill in the necessary fields and click Send Test Email button to test whether it is available.

  • Page 53: Log And Alert Settings

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.2.5 Log and Alert Settings The Log and Alert Settings tab is used to setup SNMP traps (for alerting via SNMP), pop-up messages via Windows messenger (not MSN or Skype), alerts via the syslog protocol, the pop-up alerts and alerts on the front display.
  • Page 54 iSCSI GbE to 6G SAS/SATA RAID Subsystem  System 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. There are some syslog server tools available on the internet for Windows. WinSyslog: http://www.winsyslog.com/ Kiwi Syslog Daemon: http://www.kiwisyslog.com/ Most UNIX systems build in syslog daemon.  Admin  Interface  and  Front  Display  Alerts:  You  can  check  the  alert  levels  which  you would  like  to  have  pop‐up  message  in  the  Web  UI  and  show  on  front  display.  The default setting for admin interface is none while the default setting for shown on the front display includes Warning and Error event logs.

  • Page 55: Host Port / Iscsi Configuration

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.3 Host Port / iSCSI Configuration The Host port / iSCSI Configuration menu option is for accessing the Network Setup, Entity and iSNS Settings, iSCSI Nodes, Active Sessions, CHAP Account and Fibre Channel (This option is only visible when the controller has Fibre Channel ports) option tabs.
  • Page 56 iSCSI GbE to 6G SAS/SATA RAID Subsystem LACP: The Link Aggregation Control Protocol is part of IEEE  specification 802.3ad that allows bonding several physical ports together to form a single logical channel. LACP allows a network switch to negotiate an automatic bundle by sending LACP packets to the peer. The advantages of LACP are that it increases bandwidth usage and it automatically performs a failover when the link status fails on a port.
  • Page 57 iSCSI GbE to 6G SAS/SATA RAID Subsystem Make Default Gateway: Set the gateway of the IP address as default  gateway. There can be only one default gateway. To remove the default gateway, click ▼ 　 Remove Default Gateway. Enable jumbo frames: It can enable the MTU (Maximum Transmission ...

  • Page 58: Entity And Iscsi Settings

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.3.2 Entity and iSCSI Settings The Entity and iSCSI Settings tab is used to view the entity name of the system, and setup iSNS IP for the iSNS (Internet Storage Name Service) protocol. It allows automated discovery, management and configuration of iSCSI devices on a TCP/IP network.
  • Page 59 iSCSI GbE to 6G SAS/SATA RAID Subsystem The options are available on this tab: Authentication Method: CHAP (Challenge Handshake Authentication  Protocol) is a strong 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 60 iSCSI GbE to 6G SAS/SATA RAID Subsystem Click OK button.  To disable CHAP authentication, please follow the procedures. Select the node which wants to disable CHAP.  Chick ▼ Authentication Method.  Change it to None from the drop-down list. ...
  • Page 61 iSCSI GbE to 6G SAS/SATA RAID Subsystem Rename Alias: Use this option to add or change iSCSI alias.  Select one of nodes from one controller.  Chick ▼ Rename Alias.  Enter the Alias Name. Leave it empty to remove the alias. ...

  • Page 62: Active Session

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.3.4 Active Session The Active Session tab is used to display all currently active iSCSI sessions and their connection information. This table shows the column descriptions. Most of the options are standard parameters used in the negotiation between the initiator and target when an iSCSI connection is created.

  • Page 63: Chap Account

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.3.5 CHAP Account The CHAP Account tab is used to manage the CHAP accounts on the system. The options are available on this tab:  Create User: Create a CHAP user. Enter the required information for User Name, Secret, and Re-type ...

  • Page 64: Fibre Channel

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.3.6 Fibre Channel NOTE: This option is only visible when the controller has FC ports. The Fibre Channel tab is used view the fibre channel information, and change the link speed of FC. It displays the Port ID, Connection Mode, Data Rate, WWNN (World Wide Node Name), WWPN (World Wide Port Name) , error count and the link status.
  • Page 65 iSCSI GbE to 6G SAS/SATA RAID Subsystem Fabric (Switched Fabric)(FC-SW): All devices or loops of devices  are connected to Fibre Channel switches, similar conceptually to modern Ethernet implementations. Advantages of this topology over FC-P2P or FC-AL include. Node Configuration: Set the selected fibre channel for multi-nodes ...

  • Page 66: Volume Configuration

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.4 Volume Configuration The Volume configuration menu option is for accessing the Physical Disks, RAID Groups, Virtual Disks, Snapshots, Logical Units, and QReplicas option tabs. 5.4.1 Physical Disk The Physical Disks tab provides the status of the hard drives in the system. The two drop-down lists at the top enable you to switch between the local system and any expansion JBOD systems attached.
  • Page 67 iSCSI GbE to 6G SAS/SATA RAID Subsystem The health of the hard drive: Good: the hard drive is good.  Health Failed: the hard drive is failed.  Error Alert: S.M.A.R.T. error alert.  Read Errors: the hard drive has unrecoverable read errors. ...
  • Page 68 iSCSI GbE to 6G SAS/SATA RAID Subsystem The options are available on this tab: Disk Health Check: Check the health of the selected disks. It cannot check  the disks which are in used. Disk Check Report: Download the disk check report. It’s available after ...

  • Page 69: Raid Group

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.4.2 RAID Group The RAID Groups tab provides to create, modify, delete, or view the status of the RAID groups. Use the drop-down list at the top to change the drive size units (MB or GB).
  • Page 70 iSCSI GbE to 6G SAS/SATA RAID Subsystem Current Controller (This option is only visible The controller of the RAID group. The default is controller 1. when dual controllers are installed.) Preferred Controller (This option is only visible The preferred controller of the RAID group. The default is controller 1. when dual controllers are installed.)
  • Page 71 iSCSI GbE to 6G SAS/SATA RAID Subsystem Standby:   Disabled: Disable auto spin down. (Default)  30 sec / 1 min / 5 min / 30 min: The hard drives will be spun down for power saving when the disk is idle for the period of time specified.

  • Page 72: Virtual Disk

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.4.3 Virtual Disk The Virtual Disks tab provides to create, modify, delete, or view the status of the virtual disk. Use the drop-down list at the top to change the drive size units (MB or GB).
  • Page 73 iSCSI GbE to 6G SAS/SATA RAID Subsystem Failed: the RAID group disk of the VD has single or multiple failed  disks than its RAID level can recover from data loss. Partially optimal: the virtual disk has experienced recoverable read ...
  • Page 74 iSCSI GbE to 6G SAS/SATA RAID Subsystem  Medium Priority.  Low Priority. Bg Rate:   4 / 3 / 2 / 1 / 0: Default value is 4. The higher number the background priority of a virtual disk has, the more background I/O will be scheduled to execute.
  • Page 75 iSCSI GbE to 6G SAS/SATA RAID Subsystem Take an example of creating a virtual disk. 1. Click Create button. 2. Enter a Virtual Disk Name for the virtual disk. 3. Select a Data Storage from the drop-down list. 4. Enter required Size. 5.
  • Page 76 iSCSI GbE to 6G SAS/SATA RAID Subsystem Space Reclaim: This option is available when the RAID group is thin  provisioning. There are Enabled or Disabled. The default value is Enabled. Disk Type: Select type for normal or backup usage. The options are RAID ...

  • Page 77: Snapshot

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.4.4 Snapshot The Snapshots tab provides to create, modify, delete, or view the status of snapshot. The two drop-down lists at the top enable you to switch the virtual disks. The other is to change the drive size units (MB or GB) This table shows the column descriptions.
  • Page 78 iSCSI GbE to 6G SAS/SATA RAID Subsystem The options are available after taking a snapshot:  Set Quota : Set the snapshot quota.  Rollback : Rollback the snapshot.  Delete : Delete the snapshot. The options are available after setting the quota of the snapshot: ...
  • Page 79 iSCSI GbE to 6G SAS/SATA RAID Subsystem Enter a size which is reserved for the snapshot. If the size is zero, the exposed snapshot will be read only. Otherwise, the exposed snapshot can be read / written, and the size will be the maximum capacity for writing. Attach LUN to the snapshot.

  • Page 80: Logical Unit

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.4.5 Logical Unit The Logical Units tab provides to attach, detach or view the status of logical unit numbers for each virtual disk. This table shows the column descriptions. Column Name Description The FC node name / iSCSI node name for access control or a Allowed Hosts wildcard (*) for access by all hosts.
  • Page 81 iSCSI GbE to 6G SAS/SATA RAID Subsystem Take an example of attaching a LUN 1. Click the Attach LUN button. 2. Select the Protocol. (FC models only) 3. Select a Virtual Disk from the drop-down list. 4. Enter the Allowed Hosts with semicolons (;) or click Add Host button to add one by one.

  • Page 82: Enclosure Management

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.5 Enclosure Management The Enclosure Management menu option is for accessing the Hardware Monitor, UPS, SES, and S.M.A.R.T. option tabs. For the enclosure management, there are many sensors for different purposes, such as temperature sensors, voltage sensors, hard disk status, fan sensors, power sensors, and LED status.

  • Page 83: Hardware Monitor

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.5.1 Hardware Monitor Hardware monitor can be used to view the information of current voltage, temperature levels, and fan speed. If Auto shutdown has been checked, the system will shutdown automatically when voltage or temperature is out of the normal range. For better data protection, please check Auto Shutdown.

  • Page 84: Ups

    iSCSI GbE to 6G SAS/SATA RAID Subsystem For better protection and avoiding single short period of high temperature that could trigger an automatic shutdown, the system uses to gauge if a shutdown is needed. This is done using several sensors placed on key systems that the system checks every 30 seconds for present temperatures.
  • Page 85 iSCSI GbE to 6G SAS/SATA RAID Subsystem This table shows the available options and their descriptions. Options Description UPS Type Select UPS Type: None: No UPS or other vendors.  Smart-UPS (Serial port): APC UPS with serial port.  Smart-UPS (SNMP): APC UPS with network function. ...

  • Page 86: Ses

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.5.3 SES The SES (SCSI Enclosure Services, one of the enclosure management standards) tab is used to enable or disable the management of SES. The options are available on this tab:  Enable: Click the Enable button to enable SES. ...

  • Page 87: System Maintenance

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.6 System Maintenance The System Maintenance menu option is accessing the System Information, Event Log, Upgrade, Firmware Synchronization (This option is only visible when dual controllers is installed.), Reset to Factory Defaults, Configuration Backup, Volume Restoration, and Reboot and Shutdown option tabs.

  • Page 88: Event Log

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.6.2 Event Log The Event log tab provides a log or event messages. Choose the buttons of INFO, WARNING, or ERROR levels to display those particular events. The options are available on this tab: ...

  • Page 89: Upgrade

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 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 hard drives; each hard drive has one copy of event log.
  • Page 90 iSCSI GbE to 6G SAS/SATA RAID Subsystem The options are available on this tab:  Controller Module Firmware Update: Please prepare new controller firmware file named “xxxx.bin” in local hard drive, then click Browse to select the firmware file. Click Apply button, it will pop up a warning message, click OK button to start upgrading the firmware.

  • Page 91: Firmware Synchronization (Only Available In Dual Controller Models)

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.6.4 Firmware Synchronization (Only available in Dual controller models) The Firmware Synchronization tab is used on dual controller systems to synchronize the controller firmware versions when the firmware of the master controller and the slave controller are different. The firmware of slave controller is always changed to match the firmware of the master controller.

  • Page 92: Reset To Factory Default

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.6.5 Reset to Factory Default Reset to factory default allows user to reset controller to factory default setting. Reset to default value, the password is: 00000000, and IP address to default DHCP. 5.6.6 Configuration Backup The Configuration Backup is used to either save system configuration (export) or apply a saved configuration (import).

  • Page 93: Volume Restoration

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.6.7 Volume Restoration The Volume Restoration can restore the volume configuration from the volume creation history. It is used for RAID group corrupt and tries to recreate the volume. When trying to do data recovery, the same volume configurations as original must be set and all member disks must be installed by the same sequence as original.

  • Page 94: Reboot And Shutdown

    iSCSI GbE to 6G SAS/SATA RAID Subsystem CAUTION: The data recovery does not guarantee that the lost data can be restored 100%. It depends on the real operation and the degree of physical damages on disks. Users will take their own risk to do these procedures.

  • Page 95: Performance Monitor

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.7 Performance Monitor The Performance Monitor menu option is accessing the Disk, iSCSI, and Fibre Channel (This option is only visible when it is fibre channel model.) option tabs. 5.7.1 Disk The Disk provides to display the throughput and latency of the physical disk. Check the slots which you want to monitor.

  • Page 96: Iscsi

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 5.7.2 iSCSI The iSCSI provides to display TX (Transmission) and RX (Reception) of the iSCSI ports. Check the interfaces which you want to monitor. 5.7.3 Fibre Channel NOTE: This option is only visible when the controller has FC ports. The Fibre Channel provides to display TX (Transmission) and RX (Reception) of the fibre channels.

  • Page 97: Chapter 6 Advanced Operations

    iSCSI GbE to 6G SAS/SATA RAID Subsystem Chapter 6 Advanced Operations 6.1 Volume Rebuild If one physical disk of the RAID group which is set as protected RAID level (e.g.: RAID 5, or RAID 6) fails or has been removed, then the status of RAID group will be changed to degraded mode.

  • Page 98: Operation Description

    iSCSI GbE to 6G SAS/SATA RAID Subsystem Sometimes, rebuild is called recover; they are the same meaning. The following table is the relationship between RAID levels and rebuild. Operation Description RAID 0 Disk striping. No protection for data. RAID group fails if any hard drive fails or unplugs.

  • Page 99: Migrate And Move Raid Groups

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.2 Migrate and Move RAID Groups Migrate RAID Level function changes the RAID group to different RAID level or adds the member disks of the RAID group for larger capacity. Usually, the RAID group migrates to higher RAID level for better protection.
  • Page 100 iSCSI GbE to 6G SAS/SATA RAID Subsystem CAUTION: RAID group migration or moving cannot be executed during rebuilding or virtual disk extension. Take an example of migrate the RAID group. 1. Select Volume Configuration -> RAID Groups. 2. Select a RAID group, and then click ▼ -> Migrate RAID Level. 3.

  • Page 101: Extend Virtual Disks

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.3 Extend Virtual Disks Extend function extend the size of the virtual disk if there is enough free space. Take an example of extending the virtual disk. 1. Select Volume Configuration -> Virtual Disks. 2.

  • Page 102: Thin Provisioning

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.4 Thin provisioning Nowadays thin provisioning is a hot topic people talk about in IT management and storage industry. To make contrast to thin provisioning, it naturally brings to our minds with the opposite term - fat provisioning, which is the traditional way IT administrators allocate storage space to each logical volume that is used by an application or a group of users.

  • Page 103: The Benefits Of Thin Provisioning

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.4.1 The Benefits of Thin provisioning The benefits of Thin provisioning are described on the following.  Less disk purchase is needed initially when setting up a new storage system. You don't need to buy more capacity to meet your future data growth at present time.

  • Page 104: Features Highlight

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.4.2 Features Highlight The following describes the comparison with Fat and Thin provisioning.  Write on demand or allocate on demand. This is the most distinctive function in thin provisioning. You can see from the screenshots below.
  • Page 105 iSCSI GbE to 6G SAS/SATA RAID Subsystem Figure 4: Scalable RAID group size  Allocation unit (granularity) is 1GB. This is a number that demands careful balance between efficiency and performance. The smaller it is, the better the efficiency and the worse the performance becomes, and vice versa. ...

  • Page 106: Thin Provisioning Options

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.4.3 Thin provisioning Options The following describes the thin provisioning options.  Threshold settings and capacity policies. These are designed to simplify the management and better monitoring the storage usage. You can set as many as 16 policies for each RAID group. When space usage ratio grows over the threshold set in the policy, the action will be taken and event log will be generated.

  • Page 107: Thin Provisioning Case

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.4.4 Thin Provisioning Case We suggest that you apply QThin to non-critical production applications first. Thin provisioning works well when the data written is thin-friendly, which means that the data written is not completely spread across the whole volume. Applications that spread metadata across the entire volume will obviate the advantages of thin provisioning.

  • Page 108: Jbod Expansion

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.6 JBOD Expansion The storage space can be expanded by adding JBOD expansion system. 6.6.1 Connecting JBOD The storage systems support expansion systems with SAS connections. When connecting to an expansion system, it will be displayed at the Show disk for: drop- down list in Volume Configuration ->...

  • Page 109: Mpio And Mc/S

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.7 MPIO and MC/S These features come from iSCSi initiator. They can be setup from iSCSI initiator to establish redundant paths for sending I/O from the initiator to the target. 6.7.1 MPIO In Microsoft Windows server base system, Microsoft MPIO driver allows initiators to login multiple sessions to the same target and aggregate the duplicate devices into a single device.

  • Page 110: Mc/S

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.7.2 MC/S MC/S (Multiple Connections per Session) is a feature of iSCSI protocol, which allows combining several connections inside a single session for performance and failover purposes. In this way, I/O can be sent on any TCP/IP connection to the target. If one connection fails, another connection can continue processing I/O without interruption to the application.

  • Page 111: Trunking And Lacp

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.8 Trunking and LACP Link aggregation is the technique of taking several distinct Ethernet links to let them appear as a single link. It has a larger bandwidth and provides the fault tolerance ability.

  • Page 112: Trunking

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.8.2 Trunking Trunking is not a standard protocol. It defines the usage of multiple iSCSI data ports in parallel to increase the link speed beyond the limits of any single port. The usage occasion of Trunking: ...

  • Page 113: Dual Controllers

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.9 Dual Controllers The storage system supports dual controllers of the same type for redundancy. Controller 1 (CTRL 1) is the master controller and controller 2 (CTRL 2) is the slave by default. CAUTION: ...

  • Page 114: Ownership

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.9.2 Ownership When creating a RAID group, it will be assigned with a prefered owner, the default owner is controller 1. To change the ownership of the RAID group, please follow the procedures. 1.

  • Page 115: Change Controller Mode

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.9.4 Change Controller Mode The operation mode can be changed from Single to Dual or vice versa. Here is the procedures. 1. In System Maintenance -> Upgrade tab, choose Single or Dual in the drop- down list.

  • Page 116: Snapshot / Rollback

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.10 Snapshot / Rollback Snapshot-on-the-box captures the instant state of data in the target volume in a logical sense. The underlying logic is Copy-on-Write -- moving out the data which would be written to certain location where a write action occurs since the time of data capture.

  • Page 117: Take A Snapshot

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.10.1 Take a Snapshot Take an example of taking a snapshot. 1. Before taking a snapshot, it must reserve some storage space for saving variant data. There are two methods to set snapshot space. In Virtual Disks tab, selects a virtual disk.

  • Page 118: Cleanup Snapshots

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6. Enter a size which is reserved for the snapshot. If the size is zero, the exposed snapshot will be read only. Otherwise, the exposed snapshot can be read / written, and the size will be the maximum capacity for writing. 7.

  • Page 119: Schedule Snapshots

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.10.3 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. In Virtual Disks tab, selects a virtual disk.

  • Page 120: Snapshot Constraint

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.10.5 Snapshot Constraint Snapshot function applies Copy-on-Write technique on virtual disk and provides a quick and efficient backup methodology. When taking a snapshot, it does not copy any data at first time until a request of data modification comes in. The snapshot copies the original data to snapshot space and then overwrites the original data with new changes.
  • Page 121 iSCSI GbE to 6G SAS/SATA RAID Subsystem On Linux and UNIX platform, a command named sync can be used to make the operating system flush data from write caching into disk. For Windows platform, Microsoft also provides a tool – sync, which can do exactly the same thing as the sync command in Linux/UNIX.

  • Page 122: Clone

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.11 Clone Clone function can backup data from the source virtual disk to target. Here is the clone operation. At the beginning, copy all data from the source virtual disk to target. It is also called full copy. Afterwards, use snapshot technology to perform the incremental copy.
  • Page 123 iSCSI GbE to 6G SAS/SATA RAID Subsystem Figure 2: Target side 2. Select the source virtual disk, and then click ▼ -> Set Clone. 3. Select a target virtual disk, and then click OK button. 4. At this time, if the source virtual disk has no snapshot space, it will be allocated snapshot space for clone usage automatically.

  • Page 124: Start And Stop Clone

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.11.2 Start and Stop Clone To start clone, please follow the procedures. 1. Select the source virtual disk, and then click ▼ -> Start Clone. 2. Click OK button. The source virtual disk will take a snapshot, and then start cloning.

  • Page 125: Schedule Clone

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.11.3 Schedule Clone The clone job can be set by schedule such as hourly or daily. Please follow the procedures. 1. Select the source virtual disk, and then click ▼ -> Schedule Clone. 2.

  • Page 126: Cloning Options

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.11.4 Cloning Options There are three clone options, described on the following.  Snapshot Space: This setting is the ratio of the source virtual disk and snapshot space. If the ratio sets to 2, it means when the clone process is starting, the system will book the free RAID group space to set as the snapshot space which capacity is double the source virtual disk automatically.

  • Page 127: Clear Clone

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.11.5 Clear Clone To clear the clone job, please follow the procedures. 1. Select the source virtual disk, and then click ▼ -> Clear Clone. 2. Click OK button to clear clone job. 6.11.6 Clone Constraint While the clone is processing manually, the increment data of the virtual disk is over the snapshot space.

  • Page 128: Qreplicas

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.12 QReplicas QReplicas function can replicate data easily through LAN or WAN from one system to another. Here is the replication operation. At the beginning, copy all data from the source virtual disk to target. It is also called full copy. Afterwards, use snapshot technology to perform the incremental copy.
  • Page 129 iSCSI GbE to 6G SAS/SATA RAID Subsystem Figure 2: Target Side 2. After creating the target virtual disk, please also setup snapshot space. The snapshot of the source  virtual  disk  can  replicate  to  the  target  virtual  disk.  In  Virtual  Disks  tab,  selects  the backup virtual disk. And then click ▼ ‐> Set Snapshot Space. 3. Enter a Size which is reserved for the snapshot space, and then click OK button. 4. Attach LUN of the source and target virtual disk separately. Figure 3: Source Side Figure 4: Target Side 5.
  • Page 130 iSCSI GbE to 6G SAS/SATA RAID Subsystem 6. Select a target virtual disk, and then click Next button. 7. Select the Source Port and input the Target IP, and then click Next button. User Manual...
  • Page 131 iSCSI GbE to 6G SAS/SATA RAID Subsystem 8. Choose  Authentication  Method  and  input  the  CHAP  user  if  needed.  Select  a  Target  Node, and then click Next button. 9. Select a Target LUN. When a replication job completes, it will take a snapshot on its target virtual  disk.  Please  make  sure  the  snapshot  space  of  the  backup  virtual  disk  on  the  target side is properly configured. Finally, click Finish button.
  • Page 132 iSCSI GbE to 6G SAS/SATA RAID Subsystem 10. The replication task is created. 11. At  this  time,  if  the  source  virtual  disk  has  no  snapshot  space,  it  will  be  allocated  snapshot space for replication usage automatically. The size will depend on the parameter of QReplica Options. User Manual...

  • Page 133: Start And Stop Qreplica Task

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.12.2 Start and Stop QReplica Task To start replication task, please follow the procedures. 1. In QReplicas tab of the source side, select the source virtual disk, and then click ▼ -> Start. 2.

  • Page 134: Mpio

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.12.3 MPIO To setup MPIO (Multi Path Input/Ouput) of the replication task, please follow the procedures. 1. Select the task in QReplicas tab, and then click ▼ -> Add Path. 2. Next steps are the same as the procedure of creating a new replication task. To delete multi path of the replication task, please follow the procedures.

  • Page 135: Task Shaping

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.12.5 Task Shaping It the replication traffic affects the normal usage, we provide a method to limit it. There are eight shaping groups which can be set. In each shaping group, we also provide peak and off-peak time slot for different bandwidth.

  • Page 136: Schedule Qreplica Task

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.12.6 Schedule QReplica Task The replication task can be set by schedule such as hourly or daily. Please follow the procedures. 1. In QReplicas tab, select the task, and then click ▼ ‐> Schedule. 2. Check the schedules which you want. They can be set by monthly, weekly, daily, or hourly. Click OK to apply. NOTE: Daily replication will be taken at every 00:00. Weekly replication will be taken every Sunday 00:00.

  • Page 137: Qreplica Options

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.12.7 QReplica Options There are three QReplica options, described on the following.  Snapshot Space: This setting is the ratio of the source virtual disk and snapshot space. If the ratio sets to 2, it means when the replication process is starting, the system will book the free RAID group space to set as the snapshot space which capacity is double the source virtual disk automatically.

  • Page 138: Delete Qreplica Task

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.12.8 Delete QReplica Task To delele the replication task, please follow the procedures. 1. Select the task in QReplicas tab, and then click ▼ -> Delete. 2. Click OK button to delete the replication task. 6.12.9 Clone Transfers to QReplica It is always being a problem that to do full copy over LAN or WAN when the replication task is executed at the first time.
  • Page 139 iSCSI GbE to 6G SAS/SATA RAID Subsystem To do that virtual disk clone transfers to QReplica, please follow the procedures. 1. Create a cloning job on an existing virtual disk with data stored already. 2. It is better that there is no host connected to the source virtual disk. Then run Set Clone, Start Clone to synchronize the data between source and target virtual disks.
  • Page 140 iSCSI GbE to 6G SAS/SATA RAID Subsystem 8. Next steps are the same as the procedure of creating a new replication task. 9. If a wrong target virtual disk is selected when rebuilding the replication task, there will be an alert and the system stops the creation. User Manual...

  • Page 141: Fast Rebuild

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.13 Fast Rebuild When executing rebuild, the Fast Rebuild feature skips any partition of the virtual disk 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 142: Configuration

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.13.2 Configuration When creating a virtual disk, enable the Fast Rebuild. The default is disabled. 6.13.3 Constraint Here are some constraints about Fast Rebuild.  Only thick/fat RAID group supports this feature. Thin provision RAID group already has this feature implement.

  • Page 143: Ssd Caching

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.14 SSD Caching The traditional storage technology is stored in the HDDs (Hard Disk Drives) and SSDs (Solid-State Drives) are mainly used in mission critical applications where the speed of the storage system needed to be as high as possible. In recent years, the capacity of HDDs has increased;...

  • Page 144: Populating The Cache

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.14.3 Populating the Cache The actions that read data from the HDD and write to the SSD are called populating the cache. It is a background operation that typically immediately follows a host read or write operation.
  • Page 145 iSCSI GbE to 6G SAS/SATA RAID Subsystem The following steps describe details about a host read with a cache miss: 1. A host requests a read data. 2. Read data from the HDD. 3. Return requested data to the host. 4.
  • Page 146 iSCSI GbE to 6G SAS/SATA RAID Subsystem  Write Data The following figure shows the steps of the controller which handles a host write request. The following steps describe details about a host write: 1. A host requests a write data. 2.

  • Page 147: I/O Type

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.14.5 I/O Type The type of I/O access is a user-selectable SSD cache configuration. The user- selectable I/O type controls the SSD cache internal settings for cache block size, sub-block size, populate-on-read threshold, and populate-on-write threshold. Three pre-defined I/O types are supported;...
  • Page 148 iSCSI GbE to 6G SAS/SATA RAID Subsystem We define that  T: Warm up time; seconds required.  I: Best random IOPS of HDD.  S: I/O Size.  D: Number of HDDs.  C: Total SSD caching capacity.  P: Populate-on-read or Populate-on-write threshold We assume that random read/write from HDD to achieve the capacity of SSD should C * P = I * S *D * T So we can estimate the warm up time, at least.

  • Page 149: Configuration

    iSCSI GbE to 6G SAS/SATA RAID Subsystem 6.14.6 Configuration Activate the license key User needs to obtain a license key and download it to the system to activate the SSD caching function in System Maintenance -> Upgrade -> SSD Caching License. Each license key is unique and dedicated to a specific system.

  • Page 150: Chapter 7 Troubleshooting

    iSCSI GbE to 6G SAS/SATA RAID Subsystem Chapter 7 Troubleshooting 7.1 System Buzzer The system buzzer features are listed below:  The system buzzer alarms 1 second when system boots up successfully.  The system buzzer alarms continuously when there is error occurred. The alarm will be stopped after error resolved or be muted.
  • Page 151 iSCSI GbE to 6G SAS/SATA RAID Subsystem ERROR  SATA EDMA  Failed to allocate memory for SATA EDMA mem fail  ERROR  SATA remap  Failed to remap SATA memory io space mem fail  ERROR  SATA PRD mem  Failed to init SATA PRD memory manager fail  ERROR  SATA revision id  Failed to get SATA revision id fail  ERROR  SATA set reg   Failed to set SATA register fail  ERROR  SATA init fail  Core failed to initialize the SATA adapter ERROR  SATA diag fail  SATA Adapter diagnostics failed ERROR  Mode ID fail  SATA Mode ID failed ERROR  SATA chip count  SATA Chip count error error  INFO ...
  • Page 152 iSCSI GbE to 6G SAS/SATA RAID Subsystem INFO  UPS OK  Successfully detect UPS WARNING  UPS fail  Failed to detect UPS ERROR  UPS AC loss  AC loss for system is detected ERROR  UPS power low  UPS Power Low!!! The system will auto‐shutdown immediately. WARNING  SMART T.E.C.  Disk <slot> S.M.A.R.T. Threshold Exceed Condition occurred for  attribute <string>  WARNING  SMART fail  Disk <slot>: Failure to get S.M.A.R.T information  WARNING  RedBoot failover  RedBoot failover event occurred WARNING  Watchdog  Watchdog timeout shutdown occurred shutdown  WARNING  Watchdog reset  Watchdog timeout reset occurred RMS Events Level  Type  Description INFO ...
  • Page 153 iSCSI GbE to 6G SAS/SATA RAID Subsystem INFO  VD scrub started  Parity checking on VD <name> starts. INFO  VD scrub finished  Parity checking on VD <name> completes with <address>  parity/data inconsistency found.  INFO  VD scrub aborted   Parity checking on VD <name> stops with <address>  parity/data inconsistency found.  INFO  RG migrate started  RG <name> starts migration. INFO  RG migrate finished  RG <name> completes migration. INFO  RG move started  RG <name> starts move. INFO  RG move finished  RG <name> completes move. INFO  VD move started  VD <name> starts move. INFO  VD move finished  VD <name> completes move. ERROR  VD move failed  Failed to complete move of VD <name>.  INFO  VD attach LUN ...
  • Page 154 iSCSI GbE to 6G SAS/SATA RAID Subsystem WARNING  Scrub parity  The parity at LBA <address>‐<address> is regenerated when  recovered  checking parity on VD <name>.  INFO  PD freed  PD <slot> has been freed from RG <name>.  INFO  RG imported  Configuration of RG <name> has been imported.  INFO  RG restored  Configuration of RG <name> has been restored.  INFO  VD restored  Configuration of VD <name> has been restored.  INFO  PD scrub started  PD <slot> starts disk scrubbing process.  INFO  Disk scrub finished  PD <slot> completed disk scrubbing process.  INFO  Large RG created  A large RG <name> with <number> disks included is created INFO  Weak RG created  A RG <name> made up disks across <number> chassis is  created  INFO  RG size shrunk  The total size of RG <name> shrunk INFO ...
  • Page 155 iSCSI GbE to 6G SAS/SATA RAID Subsystem INFO  BBM stop syncing   Abnormal shutdown detected, flushing battery‐ backed data finished  INFO  BBM installed  Battery backup module is detected INFO  BBM status good  Battery backup module is good INFO  BBM status charging Battery backup module is charging WARNING  BBM status fail  Battery backup module is failed INFO  BBM enabled  Battery backup feature is <string>. INFO  BBM inserted  Battery backup module is inserted INFO  BBM removed  Battery backup module is removed JBOD Events Level  Type  Description INFO  PD upgrade started JBOD <name> PD [<string>] starts upgrading  firmware process. ...
  • Page 156 iSCSI GbE to 6G SAS/SATA RAID Subsystem process. WARNING  PS fail  Power Supply of <string> in JBOD <name> is FAIL  INFO  PS normal  Power Supply of <string> in JBOD <name> is  NORMAL  WARNING  FAN fail  Cooling fan of <string> in JBOD <name> is FAIL  INFO  FAN normal  Cooling fan of <string> in JBOD <name> is NORMAL  WARNING  Volt warn OV  Voltage of <string> read as <string> in JBOD  <name> is WARN OVER  WARNING  Volt warn UV  Voltage of <string> read as <string> in JBOD  <name> is WARN UNDER  WARNING  Volt crit OV  Voltage of <string> read as <string> in JBOD  <name> is CRIT OVER  WARNING  Volt crit UV  Voltage of <item> read as <string> in JBOD <name>  is CRIT UNDER  INFO  Volt recovery  Voltage of <string> in JBOD <string> is NORMAL  WARNING ...
  • Page 157 iSCSI GbE to 6G SAS/SATA RAID Subsystem ERROR  PD substitute F2F  Over I/O retry limit in last 10 minutes on JBOD  <name> PD <slot>, the disk is disabled for  automatic rebuilding with JBOD <name> PD <slot>.  System Maintenance Events Level  Type  Description INFO  System shutdown  System shutdown. INFO  System reboot  System reboot. INFO  System console  System shutdown from <string> via Console UI  shutdown  INFO  System web  System shutdown from <string> via Web UI  shutdown  INFO  System button  System shutdown via power button shutdown  INFO  System LCM  System shutdown via LCM shutdown ...
  • Page 158 iSCSI GbE to 6G SAS/SATA RAID Subsystem Clone Events Level  Type  Description INFO  VD clone started  VD <name> starts cloning process. INFO  VD clone finished  VD <name> finished cloning process. WARNING  VD clone failed  The cloning in VD <name> failed. INFO  VD clone aborted  The cloning in VD <name> was aborted.  INFO  VD clone set  The clone of VD <name> has been designated.  INFO  VD clone reset  The clone of VD <name> is no longer designated.  WARNING  Auto clone error  Auto clone task: <string>. WARNING  Auto clone no snap Auto clone task: Snapshot <name> is not found for  VD <name>.  QReplica Events Level  Type ...

  • Page 159: Appendix

    iSCSI GbE to 6G SAS/SATA RAID Subsystem Appendix A. Microsoft iSCSI initiator Here is the step by step to setup Microsoft iSCSI Initiator. Please visit Microsoft website for latest iSCSI initiator. This example is based on Microsoft Windows Server 2008 R2. ...
  • Page 160 iSCSI GbE to 6G SAS/SATA RAID Subsystem lick Done. 4. It can connect to an iSCSI disk now. User Manual...
  • Page 161 iSCSI GbE to 6G SAS/SATA RAID Subsystem  MPIO Service 5. Please run Server Manager with below path: Control Panel\System and Security\Administrative Tools 6. Click Feature and select Add Features. 7. Please choose the checkbox of Multipath I/O User Manual...
  • Page 162 iSCSI GbE to 6G SAS/SATA RAID Subsystem 8. Install: 9. Installation succeeded. User Manual...
  • Page 163 iSCSI GbE to 6G SAS/SATA RAID Subsystem  Starting iSCSI Initiator 10. Please run iSCSI initiator with below path: Control Panel\System and Security\Administrative Tools 11. Click Discovery tab Discover Portal 12. Input the IP address of controller1 User Manual...
  • Page 164 iSCSI GbE to 6G SAS/SATA RAID Subsystem 13. Click Discover Portal 14. Input IP address of controller2 User Manual...
  • Page 165 iSCSI GbE to 6G SAS/SATA RAID Subsystem 15. Please connect ctrl1 16. Choose checkbox of Enable multipath-path User Manual...
  • Page 166 iSCSI GbE to 6G SAS/SATA RAID Subsystem 17. Please select the IP address for Initiator & Target of controller1 18. Please connect ctrl2. User Manual...
  • Page 167 iSCSI GbE to 6G SAS/SATA RAID Subsystem 19. Choose checkbox of Enable multipath-path. 20. Please select the IP address for Initiator & Target of controller2. User Manual...
  • Page 168 iSCSI GbE to 6G SAS/SATA RAID Subsystem 21. iSCSI initiator install finish.  Setup MPIO 22. Please run MPIO with below path: Control Panel\System and Security\Administrative Tools User Manual...
  • Page 169 iSCSI GbE to 6G SAS/SATA RAID Subsystem 23. Click tab of Discover Multi-Paths 24. Choose checkbox of Add support for iSCSI devices 25. Reboot User Manual...
  • Page 170 iSCSI GbE to 6G SAS/SATA RAID Subsystem  MC/S 26. If running MC/S, please continue. 27. Select one target name, click Properties…. 28. Click MCS… to add additional connections. User Manual...
  • Page 171 iSCSI GbE to 6G SAS/SATA RAID Subsystem 29. Click Add…. 30. Click Advanced…. 31. Select Initiator IP and Target portal IP, and then click OK. 32. Click Connect. 33. Click OK. User Manual...
  • Page 172 iSCSI GbE to 6G SAS/SATA RAID Subsystem 34. Done. User Manual...
  • Page 173 iSCSI GbE to 6G SAS/SATA RAID Subsystem  Disconnect 35. Select the target name, click Disconnect, and then click Yes. 36. Done, the iSCSI device disconnect successfully. User Manual...

  • Page 174: Limited Warranty

    Rocstor. The replacement part or product takes on either the Limited Warranty status of the removed part or product or the thirty (30) day limited warranty of the spare part. In the unlikely event that your Rocstor product has a recurring failure, Rocstor, at its discretion, may elect to provide you with a replacement unit of Rocstor‘s choosing that is at least equivalent to your Rocstor branded product in hardware performance.
  • Page 175 Rocstor does not warrant that the operation of this product will be uninterrupted or error-free. Rocstor is not responsible for damage that occurs as a result of your failure to follow the instructions that came with the Rocstor branded product.
  • Page 176 PERFORM, INCLUDING ANY LOST PROFITS OR SAVINGS OR SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES. ROCSTOR IS NOT LIABLE FOR ANY CLAIM MADE BY A THIRD PARTY OR MADE BY YOU FOR A THIRD PARTY. THIS LIMITATION OF LIABILITY ALSO APPLIES WHETHER DAMAGES ARE SOUGHT OR A CLAIM IS MADE UNDER THIS LIMITED WARRANTY OR AS A TORT CLAIM (INCLUDING NEGLIGENCE AND STRICT PRODUCT LIABILITY), A CONTRACT CLAIM OR ANY OTHER CLAIM.

  • Page 177: Technical Support

    Rocstor on the Rocstor branded product or included with the Rocstor branded product at the time of your purchase or lease of the product is available for a fee. WARNING: The individual user should take care to determine prior to use whether this device is suitable, adequate...
  • Page 178 Technical Support All Rocstor hard drives are backed by free telephone technical support for two (2) years from the date of purchase. Please register your product with Rocstor. To register, fill in the Limited Warranty Registration form in the Support tab at www.rocstor.com.
  • Page 179 Rocstor is a California Company; U.S.A. Contact Information Corporate Headquarters 92445 De Soto Ave Chatsworth, California 91311 U.S.A. Office: +1 (818) 727-7000 Email: info@Rocstor.com Technical Support / RMA Tel: (818) 727-7000 (USA and Canada) Tel: +1 (818) 727-7000 (Domestic and...

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