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Texas Memory Systems RamSan-500 User Manual

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TEXAS MEMORY SYSTEMS, INC.
RamSan-500
User's Manual
RamSan-500
Version 1.2

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  • Page 1 All manuals and user guides at all-guides.com TEXAS MEMORY SYSTEMS, INC. RamSan-500 User’s Manual RamSan-500 Version 1.2...
  • Page 2 RamSan-500 User’s Manual 2 of 48 Copyright © 2007, Texas Memory Systems, Inc. All rights are reserved. No part of this work may be reproduced or used in any form or by any means - graphic, electronic, or mechanical, including photocopying, recording,...

  • Page 3: Table Of Contents

    4.12 Viewing the Logs with the Web Monitor...........32 4.13 Upgrading the System with the Web Monitor ...........36 4.14 If the System has a Problem ..............37 Chapter 5 – System Maintenance ..............39 5.1 Contacting Texas Memory Systems ............39 5.2 Power Supplies..................39 5.3 Flash Modules ..................41 5.4 Fans ....................46 5.5 Batteries ....................48...

  • Page 4: Chapter 1 - Introduction

    RAID-protected Flash storage modules accessible from the front, with a combined usable capacity of either 1 or 2-Terabytes and a data bandwidth of 2 GB/sec. A single RamSan-500 fits in 4U of rack space. Multiple RamSan-500 units scale capacity, bandwidth, and IOPS.

  • Page 5: Reliability

    All manuals and user guides at all-guides.com 1.4 Reliability The RamSan-500 is designed to offer superior reliability to other solid- state disks and RAID devices. Its standard features include Chipkill™- protected RAM, hot-swap modular Flash memory, hot-swap power supplies, failover ports, and SNMP compatibility. The nine-unit RAID design ensures data integrity even in the event of the complete failure of a single Flash module.

  • Page 6: Chapter 2 - Reviewing Your Shipment

    System nspection nspection nspection TMS ships the RamSan-500 with a packing list. Ensure that you have received all of the components listed. 1) Examine the external chassis for any damage that might have occurred during shipping. 2) Examine the Flash modules to ensure that they were not damaged during shipping.
  • Page 7 2.2.1 Rack mounting Rack mounting Rack mounting Rack mounting The RamSan-500 solid-state disk (SSD) system is a 4U rack-mountable system. TMS ships the system with the slides and equipment needed to install it into a standard 19” rack. RamSan-500 User’s Manual...

  • Page 8: Chapter 3 - Connections

    Many applications require storage bandwidth that exceeds what a single FC connection can provide. To accommodate this situation, we provide up to 8 FC ports per RamSan-500, each of which can supply the bandwidth described above. Using multiple Fibre Channel RamSan-500 User’s Manual...

  • Page 9: Connecting The Fibre Channel Ports

    Interrupt Coalescing, because most RamSan applications benefit from low latency. For more information, consult your HBA documentation. 3.2 Connecting the Fibre Channel Ports Connect the Fibre Channel ports on the RamSan-500 to your server or to a Fibre Channel switch. RamSan-500 User’s Manual...

  • Page 10: Connecting To A Network

    Figure 3– Fibre Channel Port Locations Figure 3– Fibre Channel Port Locations shows the port layout for the RamSan-500. Each controller has two or four Fibre Channel ports: A and B, on the top and bottom respectively. The FC-77 ports on the system are capable of connecting to point-to-point, arbitrated loop, and switched fabric topologies at either 4-Gigabit or 2-Gigabit speeds.

  • Page 11: Connecting Power To The System

    All manuals and user guides at all-guides.com 3.4 Connecting Power to the System A fully loaded RamSan-500 requires approximately 250 watts of power. It contains redundant power supplies that are hot-swappable. Using the AC power cords provided, connect each power module to a power source.

  • Page 12: Chapter 4 - Getting Started

    All manuals and user guides at all-guides.com Chapter 4 – Getting Started This chapter will guide you through setting up your RamSan-500. It is important to accomplish the following tasks to make your system usable: Use the front panel display to set up the network (Section 4.5) Get the Web monitor operational (Section 4.7)

  • Page 13: Front Panel Display Basics

    4.3 Front Panel Display Basics The front panel display provides a quick and easy way to view the RamSan-500’s status. It displays the current progress of Flash module synchronization and shows system warnings and failures. The RamSan-500’s front panel allows you to:...

  • Page 14: Controlling System Power With The Front Panel Display

    This procedure safely synchronizes all data in the RAM cache to the internal Flash module storage. In order to turn the RamSan-500 back on after a manual shutdown, switch off both power modules and then switch both back on.
  • Page 15 Flash Modules You may need to remove one or more of the Flash modules for various reasons. This can be done with the RamSan-500 system power on or off. However, if the RamSan power is on, the particular Flash module selected for removal must always be powered off prior to removal.
  • Page 16 To proceed with the module power off, use the ↓ ↓ ↓ ↓ button to confirm. You can then exit from the Flash Module Menu Flash Module sub-menu and Exit remove the chosen module. RamSan-500 User’s Manual 16 of 48...

  • Page 17: Network Configuration With The Front Panel Display

    4.5 Network Configuration with the Front Panel Display The RamSan-500 allows system monitoring and configuration through the installed Ethernet module. To access the system’s Ethernet port you will need to provide the system with an IP address, subnet mask, and possibly a gateway address.
  • Page 18 “Static IP” you are asked to confirm the selection with the ↓ ↓ ↓ ↓ button. To configure the RamSan with a static IP, the system requires the IP address, subnet mask, and possibly a gateway address. RamSan-500 User’s Manual 18 of 48...
  • Page 19 New IP Address: assigned IP address 192.168.111.101 The RamSan-500 comes from the factory using DHCP as its IP address method. To configure your DHCP server you may need to know the RamSan’s hardware MAC address. Follow the instructions below to get the MAC address and to set up your system to use DHCP: From the “Network Config”...

  • Page 20: Additional System Management Options

    To connect to the RamSan-500 using a serial port connection, use a dumb terminal or a terminal emulation program such as Windows™ HyperTerminal. Set your baud rate to 9600 with 8 data bits, 1 stop bit, no parity, and no flow control. Connect to the serial port using a DB-9 non-null serial cable.

  • Page 21: Web Monitor Basics

    Connecting using Telnet Connecting using Telnet Once the administrator configures the Ethernet port on the RamSan-500 using either the front panel or the serial port, you may remotely monitor the system using a Telnet session. Set your terminal settings to VT100 mode.
  • Page 22 To use the Web monitor, you must connect to it over your network. You will need to acquire the RamSan-500’s IP address – which can be accomplished from the front panel display. Press the Menu button to Main Menu display the “Main Menu”.
  • Page 23 After you log in, the window shown in Figure 7 will appear. Figure 7 – Web Monitor Opening Screen From here select the RamSan icon. When selected it shows a variety of information about the system. Figure 8 – Web Monitor Information RamSan-500 User’s Manual 23 of 48...

  • Page 24: Date And Time Setup With The Web Monitor

    If the date and time are incorrect you can set the time and date manually. Either right-mouse click and select “Set date/time…” or left-mouse click the clock/wrench icon in the button bar – both methods bring up the calendar window (Figure 10). RamSan-500 User’s Manual 24 of 48...

  • Page 25: Network Configuration With The Web Monitor

    All manuals and user guides at all-guides.com Figure 10 – Web Monitor Calendar By configuring the calendar, you will set the date and time of the RamSan-500. Additionally, the RamSan-500 supports NTP (Network Time Protocol). 4.9 Network Configuration with the Web Monitor You should have already set up the basic network options via the front panel if you followed the instructions in Section 4.5 –...

  • Page 26: Managing Security With The Web Monitor

    Default Default Default A A A A ccounts ccounts ccounts ccounts The RamSan-500 ships with a high-privileged user as well as a low- privileged user. The high-privileged user is: User: admin Password: password The high-privileged user is allowed to change RamSan configurations.
  • Page 27 Figure 14 – Web Monitor User Management Please change the password to your high-privileged user account (named “admin”) by selecting the user and left-clicking the “Password…” button. This will pop up the “Change User” window shown in Figure 15. RamSan-500 User’s Manual 27 of 48...

  • Page 28: Basic Lun Creation

    You can create a LUN from the “Logical Units” tree node by right- clicking and selecting “Create” or by clicking on the “Create” button after highlighting “Logical Units”. This is shown in Figure 17. RamSan-500 User’s Manual 28 of 48...
  • Page 29 Backup mode – This affects the cache operation for the Logical unit. There are two modes available: Writeback – Cache incoming writes in the battery protected cache and synchronize the writes to Flash as a background process. RamSan-500 User’s Manual 29 of 48...
  • Page 30 The first step of the access policy wizard will provide an overview of the process. After reading the overview, click the “Next” button to continue to the “Access Policy Table” for the Logical Unit, shown in Figure 20. RamSan-500 User’s Manual 30 of 48...
  • Page 31 LUN will only be presented to that HBA (it will be masked to it). If “Open Access” is selected then the LUN will be presented to all HBAs that are connected to that port. Lastly, click the “Next” button to create the access policy. RamSan-500 User’s Manual 31 of 48...
  • Page 32 All manuals and user guides at all-guides.com 4.12 Configuring the RamSan-500 Cache The RamSan-500 contains a large RAM cache to buffer write operations and keep the back and Flash busy with parallel operation. The cache details and configuration can be viewed by selecting the “Cache” item from under the “Storage”...

  • Page 33: Viewing The Logs With The Web Monitor

    Perhaps the most important part of the Web monitor is the system event log. This log keeps track of all events that occurred within the system. If you are having trouble with your system, be sure to open the system event log and check this information. RamSan-500 User’s Manual 33 of 48...
  • Page 34 A System Report should always be on-hand when diagnosing problems with Texas Memory System’s customer support. To access the System Report from the Web monitor, right-mouse click the “Logs” item in the “System List” and select “System Report…” RamSan-500 User’s Manual 34 of 48...
  • Page 35 RamSan. It will take 10 to 20 seconds to complete. You can then hit the “Save” button in the lower right to save the support log to a file. Figure 26 – Web Monitor System Report RamSan-500 User’s Manual 35 of 48...

  • Page 36: Upgrading The System With The Web Monitor

    From the Web monitor, expand the “Management” tab under the “Systems List”. This will expose three sub-options. Highlight “Firmware” – it will display the current RamSan-500 firmware version. Figure 27 – Web Monitor Firmware Management To update the firmware either right-mouse click and select “Firmware update…”...

  • Page 37: If The System Has A Problem

    RamSan-500 when it comes up. 4.15 If the System has a Problem The RamSan-500 is a complex system with many redundant features to safeguard your data; however, components can fail. The RamSan-500 has many ways to inform the user about what is happening inside the system.
  • Page 38 Web monitor “System List”. To clear the system event log, right- mouse click the “Logs” item and select “Clear Logs” – alternatively, left-mouse click the eraser icon in the button bar. This will clear the system event log. RamSan-500 User’s Manual 38 of 48...

  • Page 39: Chapter 5 - System Maintenance

    Memory Systems for detailed maintenance instructions. 5.1 Contacting Texas Memory Systems Contact Texas Memory Systems for additional support. Before contacting Texas Memory Systems, please save a copy of the support log to send to tech support. Texas Memory Systems, Inc.
  • Page 40 There are three ways to detect a bad power supply. The easiest way is to examine the AC voltage LED. (See Figure 5 – RamSan-500 Power Supply.) If it is illuminated the power supply is running.

  • Page 41: Flash Modules

    All manuals and user guides at all-guides.com 5.3 Flash Modules The RamSan-500 comes with 9 Flash modules in a RAID 5 configuration. This section will go over various failure conditions and what must be done to correct them. The Flash modules in the RamSan-500 are designed and manufactured by Texas Memory Systems.
  • Page 42 A degraded module functions correctly, but a degraded array cannot tolerate another Flash module failure without data loss. You can also get information about the state of the Flash modules from the Web monitor. RamSan-500 User’s Manual 42 of 48...
  • Page 43 “raid2” and “Flash 2” have been noted with warning icons (yellow triangled explanation points). ARNING EPLACE FAILED LASH ODULES AS SOON AS POSSIBLE F A SECOND LASH RAID, MODULE FAILS IN THE SAME ALL DATA WILL BE LOST IN THE SYSTEM RamSan-500 User’s Manual 43 of 48...
  • Page 44 Flash drive as shown in Figure 31. In this case, the removed module causes the RAID to be degraded, meaning the RAID cannot tolerate another Flash module error without data loss – but the RAID is still usable. RamSan-500 User’s Manual 44 of 48...
  • Page 45 The Offline system should not be exercised while in a failed state. If a RAID is put offline, all Flash modules in that array will have their front LED illuminated red. RamSan-500 User’s Manual 45 of 48...

  • Page 46: Fans

    If the RAID has multiple module failures, it will be taken offline. There will be a good chance your RAID will lose its data. Please contact Texas Memory Systems to diagnose and repair your system (see Section 4.15.1 – Contacting Texas Memory Systems).
  • Page 47 Figure 35 for a fan failure example. To fix a fan, determine which fan from which cage has failed – either from the front panel display or from the Web monitor. Then turn off your system and remove the lid. RamSan-500 User’s Manual 47 of 48...

  • Page 48: Batteries

    All manuals and user guides at all-guides.com Fan Bank 2 Fan Bank 1 Figure 36 – Top of an Open RamSan-500, Locations of the Fan Cages Please consult Figure 36 above to determine where each fan cage is in the chassis.

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