TEXAS MEMORY SYSTEMS, INC. RamSan-325/325c User’s Manual Version 2.
Any trademarks or registered trademarks used in this document belong to the companies that own them. Copyright © 2005, 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, taping, or information storage and retrieval systems - without permission of the copyright owner.
Table of Contents Preface ................................................................................................................ 1 Document Overview ................................................................................................. 1 Conventions............................................................................................................ 1 Safety Precautions ...................................................................................................
Chapter 8 – SNMP Configuration ................................................................................ 92 8.1 Enabling SNMP settings ............................................................................... 92 Chapter 9 – System Maintenance............................................................................... 97 9.1 Updating System Firmware .......................................................................... 97 9.2 Hot Swapping Power Supplies ...................................
Preface Document Overview This document provides operating procedures for the RamSan-325/325c. It covers installation, management, and troubleshooting issues. Conventions This document uses the following textual conventions: Select Ethernet Setup lunconfig Front panel button descriptions Front panel text (menu items) Management port (serial/Telnet) commands and text. Safety Precautions PLEASE OBSERVE ALL DUE SAFETY MEASURES WHEN WORKING WITH SENSITIVE ELECTRICAL EQUIPMENT.
Revision History The following table describes revisions to this document: Version 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 2.0 2.1 2.2 Comments Initial release Added component photographs Added information about using the help function in the text management interface. Added Appendix A. Updated power supply details.
Chapter 1 1.1 – Introduction Overview The RamSan-325 series solid-state disk uses DDR RAM (memory) as its primary storage. This technology enables practically instantaneous data access, which results in dramatic application performance increases. Texas Memory Systems (TMS) designed the RamSan to be highly available and fault tolerant. The system has higher availability than RAID or JBOD systems because the primary storage media is DDR RAM, which does not require moving parts.
1.2 System Components The system components for the RamSan-325/325c include: • • • • • • • • • • • 1.
The system monitors the internal disks and batteries for a failure condition. In such an event, it notifies the operator of an error through the front panel display and the management software. 1.5 Configurable Backup The RamSan-325 allows the administrator to set backup modes for each LUN individually or system wide. Active BackupTM mode (optional) This ideal mode for most users is only available from Texas Memory Systems. In Active Backup mode, the RamSan uses available internal bandwidth (i.e.
Chapter 2 – Installation 2.1 Electro-Static Discharge Warning Important: Please take full E.S.D. precautions if it is necessary at any time to come into contact with any circuit boards, components or connectors. Electrostatic discharge can damage the components used in the RamSan and its interfaces. 2.2 Battery Warning The internal batteries in the RamSan-325 are charged with enough voltage to power a fully loaded system for approximately 30 minutes.
Figure 2-1: RamSan-325 Layout RamSan-325/325c User’s Manual -7-
2.4 Rack Mounting The RamSan-325 series solid state disk is a 3U rack-mountable system. TMS ships the system with the slides and equipment needed to install it into a standard 19” rack. 2.5 Connecting the Fibre Channel Ports After you have inspected the system and properly mounted it, connect the Fibre Channel ports on the RamSan to your server or to a Fibre Channel switch.
“Power” AC Voltage Figure 2-3 RamSan Power Supply The power supply includes the following button and indicators: “Power” switch The large black button above the power supplies acts as an on/off switch and will silence the warning buzzer. • The button provides a means to activate the power supplies (turn them on) after a system shutdown. If the system shuts down for any reason other than a power failure, press the “Power” switch to turn the system back on.
AC Voltage indicator light When the power supply is connected to AC power and is operating properly, the indicator light attached to each power supply is green. If the green light is not on, either the power supply is disconnected from an AC power source or the power supply has failed. Check the power cable to determine if power has been lost to the supply or whether the supply has failed.
2. In a RamSan-325, the front panel displays “Restoring Data” and cycles between a progress bar and an estimated time until completion. Administrators may use this to determine how much time before the system is on-line. This information is also available through the Text Management Interface. This process will take approximately 12 minutes for a fully loaded system. Restoring Data ... 73.8% Restoring Data ... Est. Time Left 73.
Chapter 3 – Management Tool Overview 3.1 Front Panel Display The Front Panel Display provides a quick and easy way view the RamSan’s status. It displays the current progress of disk synchronization and shows system warnings and failures.
↓ The “↓” button scrolls down through the menu. The “↓” button is also used confirm certain commands, as indicated on the display. If the menu is not selected, this button is disabled. 3.1.
3.2 Text Management Interface The RamSan’s management port allows you to manage, configure, and monitor system behavior. You may connect to the management port with either a DB-9 serial cable or an RJ-45 Ethernet cable. 3.2.1 Connecting using a terminal program To connect to the RamSan 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.
Figure 3-2: Text Management Interface When the user selects some menu items, the program displays sub-menus, as shown in Figure 3-3: Text Management Interface Sub-Menu: Figure 3-3: Text Management Interface Sub-Menu When in a sub-menu, the user can select “C” to cancel or press the “ESC” key to return to the menu. Once satisfied with the changes made on a menu, the user must select “S” to save all of the changes. Pressing “ESC” or selecting “Q” disregards any changes and returns to the previous menu.
TMS designed some screens to display status information and display data as in Figure 3-4: Text Management Interface Status Screen: Figure 3-4: Text Management Interface Status Screen On status screens, the program provides the user with several options: • • • • Press ‘Q’ to exit the menu Press ‘I’ or ‘D’ to increment or decrement the interval between statistics updates in ¼ second intervals Enter ‘R’ to immediately refresh the data on the screen Enter [SPACE] to view additional information To exit the T
Some of the sub-menus have a large numbers of items and therefore scroll. In Figure 3-5: Scrolling Sub-Menus, notice to the right of the choices there is a ‘-‘, ‘v’, or ‘^’. In our example we see a ‘-‘ and ‘v’. ‘v’ and ‘^’ indicate that it is possible to scroll down and up, and ‘-‘ indicates you have reached either the top or bottom of the sub-menu. 3.3 Web Management Interface Another way to get an overview of what is happening in a system is to use the web management interface.
Figure 3-6: Web Management Interface 3.4 SNMP RamSans support the Simple Network Management Protocol (SNMP), which is the dominant network management protocol. The industry has accepted this protocol due to its relative simplicity. The SNMP standards provide a framework for the definition of management information along with a protocol for the exchange of that information. The RamSan-325 Series is compatible with SNMP V2c. The SNMP model contains “managers” and “agents.
Chapter 4 – Administration Functions 4.1 Security The RamSan has several features that allow the administrator to control system access, including password protected access and the ability to disable remote access via Telnet, Web, or SNMP. 4.1.1 Logging into the system The RamSan has one account: “admin.” 4.1.2 Set password Since it is possible to access the RamSan remotely through the management port, TMS includes a password feature for system security.
Via Web Interface To • • • • • • change the administrator password via the web interface: Click on the “Management Control Processor” graphic Click the “General Config” tab Enter your old password; The system requires your old password for security reasons Enter your new password Confirm the new password Click the “Change” button The system immediately changes the administrator password.
Via Text Management To change the administrator password via Text Management Interface: • From the Telnet Main Menu, select “Management setup” • Select “Change password” • Enter the admin password and press [ENTER] If you are not logged in through the console, you must verify your password. For security reasons, the system does not display the typed letters when typing in passwords. Figure 4-2: Password Change 4.1.
Via Web Management To enable/disable Telnet via the web interface: • Click on the “Management Control Processor” graphic • Click on the “Network” tab To enable Telnet, check the “Allow Telnet” checkbox and press the “Save” button. To disable Telnet, uncheck the “Allow Telnet” checkbox and press the “Save” button.
Via Text Management • • • • From the Telnet Main Menu, select “Management setup” Select “Enable/Disable Telnet.” If Telnet is enabled, your option will be “Disable Telnet” and visa versa. Press the “ ” key or [ENTER] to toggle between the sections Select “Save changes and exit” to save the changes. The menu displays the current Telnet status above the menu options, as shown in Figure 4-4: Telnet Setup. Users currently connected through Telnet remain connected until their session ends.
4.1.4 Enable/disable Web Interface The system allows the administrator to disable Web access to prevent users from accessing the system through the Web interface. Via Web Management To disable the web interface via the web interface: • Click on the “Management Control Processor” graphic • Click on the “Network” tab To disable the web interface, uncheck the “Allow Web” checkbox and press the “Save” button.
4.2 Configuring System Date and Time The RamSan uses the system date and time to update the event log. This feature aids in troubleshooting. 4.2.1 Set Date and Time Via Web Interface To • • • • change the system date and time via the web interface: Click on the “Management Control Processor” graphic Click the “General Config” tab Enter the date and time under the “New time/date” field. Click the “Save” button The system immediately changes the date and time.
Via Text Management To • • • • • • • change the system time via Text Management Interface: From the Telnet Main Menu, select “Management setup” Select “Set system date/time” Select “Set the time” Set the time and press [ENTER] Select “Set the date” Set the date and press [ENTER] Select “Save changes and exit” Figure 4-6: Password Change 4.3 Configuring Ethernet Settings The RamSan allows system monitoring and configuration through the serial port and the Ethernet port.
• Displays a list of the current IP configuration, hostname, IP address, subnet mask, gateway address (if applicable), and hardware Ethernet address. Show Current Config • To continue setting up the Ethernet configuration Set IP Config • Shuts down and restarts the Ethernet port using the current IP assignment configuration Restart Network • Exits the setup menu. Exit Menu Use the arrow buttons to scroll up and down through the list.
Talk to your network administrator for the proper IP assignment type. The default factory setting is DHCP. Use the “Select” button to select the desired method of IP assignment. If you did not choose “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 a possibly a gateway address.
After confirming the new IP assignment mode, the display indicates “Shutting Down Network…” followed by a success or failure message. Then, the display indicates “Saving IP Config…” followed by a success or failure message. Next, the RamSan attempts to start the network with the new settings, indicated on the front panel display with “Restarting Network…” Upon success, the system displays the new IP address on the front panel for 15 seconds or until any button is pressed. Shutting Down Network...
4.3.2 Configuring Ethernet Settings via Web Management Interface To • • • • setup the Ethernet via the Web Management Interface: Click the “Management Control Processor” graphic Click the “Network” tab Configure the Ethernet settings using the fields under “Configure Network” Click the “Save” button.
4.3.3 Configuring Ethernet settings via Text Management Interface • • From the Telnet Main Menu, select “Management setup” Select “Configure Ethernet” Figure 4-8: Ethernet Setup The system displays the “Ethernet Setup” screen, as shown in Figure 4-8: Ethernet Setup.
To • • • set the hostname: Select “Select hostname” Enter the hostname and press [ENTER] When all Ethernet setup is complete, select “Save changes, restart the network, and Exit” 4.4 Power Down Settings The RamSan has features that allow the administrator to safely power down the system. 4.4.1 Manual shutdown The administrator can shut down the RamSan manually from the front panel and via Text Management Interface.
Now, the front panel display indicates that the system is powering off. Depending on the system mode and the size of memory, this procedure may take a while. The front panel cycles between a power off status bar and an estimated time until the system completes the power off. *** Powering Off *** Via Web Management To perform a manual shutdown via the web interface: • Click on the “Management Control Processor” graphic • Click on the “General Info” tab Press the “Shutdown” button.
4.5 Installing New Feature Licenses The RamSan allows the administrator to add license keys as new features become available. 4.5.1 Via the Web Interface To • • • • add a new feature license via the Web Interface: Click on the “Management Control Processor” graphic Click on the “General Config” tab Type or paste the license key into the “Key” field.
4.5.2 Via Text Management To • • • • add a new feature license via the Text Management Interface: From the Telnet Main Menu, select “Management setup” Select “Manage system licenses” Select “Add a feature license” Type or paste the license key into the input box and press [ENTER] If the system accepts the license key, the license manager screen will display a message at the bottom of the screen stating “Added feature: .
4.6.1 Download Configuration Settings Via the Web Interface To • • • download the configuration settings via the Web Interface: Click on the “Management Control Processor” graphic Click on the “General Config” tab Click the “Download Settings” button The web interface will generate the configuration file, and you will be asked where you would like to save the file.
4.6.2 Upload Configuration Settings Via the Web Interface To • • • • • • • upload the configuration settings via the Web Interface: Click on the “Management Control Processor” graphic Click on the “General Config” tab Click the “Upload Settings” button The web interface will open a new browser window to facilitate uploading the configuration file. Browse for the saved configuration file and click the “Submit File” button. Confirm your system password and click the “Upload” button.
Chapter 5 – Monitoring Functions 5.1 Viewing System health and status The RamSan makes it possible to view system health variables in a variety of ways. This allows you to easily determine that the system is in good health and, under rare circumstances, determine that a failure is imminent or has occurred. 5.1.1 Front Panel Monitoring When the menu on the front panel is not in use, the display monitors various aspects of the system.
Status The following status levels are possible: “GOOD” System Status: This is normal operation. “WARNING” Indicates that the RamSan has detected a system warning. Warning statements scroll across the front panel display. Possible warning examples: • Pwr supply # removed • AC lost at one or both power supplies • One or both batteries are low • Temperature warning • One disk removed “ERROR” Indicates that the RamSan has detected a system failure. Error statements scroll across the front panel display.
Fibre Channel Performance The front panel display can show the Fibre Channel Controller performance: From the front panel main Active Monitor Mode menu, select “Active Monitor Mode.” This mode shows the performance bars for each Fibre Channel port. The numbers represent the Fibre Channel Controllers. If a controller is not installed, the number and corresponding performance will not display. The top bars represent the port A and the bottom bars represent port B.
LED Performance Monitoring If your system is equipped with front panel LEDs, you can also view bandwidth and IOPS: From the front panel main menu, select “LED Display” LED Display This mode uses the LEDs to display bandwidth or IOPS. To use the LEDs to display bandwidth, select “Display Bandwidth.” To use the LEDs to display IOPS, select “Display IOPS.” Display Bandwidth Once you select one of the above options, the display will ask you to “Enable Autoblink.
5.1.2 Identifying a RamSan When you have more than one RamSan, the “Identify Device” feature helps you to physically locate which RamSan you are monitoring. This feature blinks the front panel display. The following demonstrates how to make the front panel display start and stop blinking.
5.1.3 Viewing System Uptime The system uptime provides information about how long the system has been powered on. Via Web Interface To view the system uptime via web interface: • Click on the “Management Control Processor” graphic • Click on the “General Info” tab The “General Info” screen displays the “Uptime” below “Firmware version.
Via Text Management To view the system uptime via Text Management Interface: • From the Telnet Main Menu, select “Health and Status” The system displays the current system uptime in days, hours, minutes and seconds at the top of the “Health and Status” screen, as shown in Figure 5-3: Health and Status: Figure 5-3: Health and Status RamSan-325/325c User’s Manual - 44 -
5.1.4 Viewing System Health The system health allows the user to monitor vital system health statistics, such as general state information, voltages, temperatures, and fan speeds. Via Web Interface Information concerning the disks, batteries, power supplies, and fans are in separate locations through the Web interface.
Batteries • • Click on the “Batteries” graphic Click on the “General Info” tab Figure 5-5: Battery Status via Web interface RamSan-325/325c User’s Manual - 46 -
Management Control Processor To view the MCP status via web interface: • Click on the “Management Control Processor” graphic • Click on the “General Info” tab Figure 5-6: MCP General Info Tab for Status RamSan-325/325c User’s Manual - 47 -
Power Supplies • • Click on the “Power Supply” graphic Click on the “General Info” tab Figure 5-7: Power Supply Status via Web Interface RamSan-325/325c User’s Manual - 48 -
Fans • • Click on the “Fans” graphic Click on the “General Info” tab Figure 5-8: Fans Status via Web interface RamSan-325/325c User’s Manual - 49 -
Via Text Management • • From the Telnet Main Menu, select “Health and Status” Select “View system monitor” Figure 5-9: Text Management Interface System Health Status The states are classified as “Good,” “Warn,” and “Error”: “Good” This states that everything is functioning under normal operating conditions. “Warn” This indicates a potential problem to look into, but the problem is not an immediate threat to system stability. “Error” This indicates that the component should be investigated immediately.
Figure 5-10: Text Management Interface System Health Details By pressing the “V” key while on the System Health Status screen, the system will display the System Health Details screen. Press the “Q” key to return to the System Health Status screen.
5.1.5 Viewing Detailed Fibre Channel Controller Status Via Web Interface The Web interface allows you to view all of the fibre channel information, but one fibre channel controller at a time.
Via Text Management • • From the Telnet Main Menu, select “Health and Status” Select “View Controller Status” Figure 5-12: Fibre Channel Controller Status via Text Management Interface RamSan-325/325c User’s Manual - 53 -
5.2 Statistics The storage administrator can monitor important statistics that define the level of system performance through the various management utilities. These statistics include Input and Output operations per second (IOPS) and bandwidth. 5.2.
fibre channel controller in the system. It also displays a total across all of the FCs present.
5.2.2 Viewing Bandwidth Summary Via Web Interface To view the bandwidth statistics via the web interface: • Click on one of the “Fibre Channel” graphics or the “Management Control Processor” graphic • Click on the “Statistics” tab • Click the radio button next to “Bandwidth” The graphing tool provides the option to view read, write, and total bandwidth, as well as a running average of each of these statistics. To decode the colors on the graphical display, see the legend below the check boxes.
Via Text Management To • • • view the bandwidth summary via Text Management Interface: From the Telnet Main Menu, select “Health and Status” Select “View statistics” Select “Bandwidth summary” The “Bandwidth Summary” screen displays the bandwidth read (r), write (w), and totals (t) for each fibre channel controller in the system. It also displays a total across all of the fibre channel controllers present.
5.2.3 Viewing Transfer Size View the transfer size to monitor how the file system is processing your data. This information can be used understand performance limitations.
Via Text Management To • • • view the bandwidth summary via Text Management Interface: From the Telnet Main Menu, select “Health and Status” Select “View statistics” Select “Transfer size summary” The “Transfer Size Summary” screen displays the transfer size read (r) and write (w) for each fibre channel controller in the system.
5.2.4 Viewing Queue Depth Summary Use the outstanding queue depth summary to analyze the utilization of the RamSan’s resources. If the queue depth is below one, then the RamSan is not being fully utilized. If the queue depth is above or at one, then you may wish to add additional links or change other performance parameters to further utilize the RamSan.
Via Text Management To • • • view the bandwidth summary via Text Management Interface: From the Telnet Main Menu, select “Health and Status” Select “View statistics” Select “Queue Depth summary” The “Queue Depth Summary” screen displays the outstanding command queue depth for read (r), write (w), and totals (t) for each fibre channel controller in the system. It also displays a total across all of the fibre channel controllers present.
5.2.5 Viewing Controller Details Via Text Management To • • • • view the controller details via Text Management Interface: From the Telnet Main Menu, select “Health and status” Select “View statistics” Select “Controller details” Select a fibre channel controller from the sub-menu. The “FC Overview” screen shows a summary of IO/sec, bandwidth, queue depth, and transfer size for a particular controller. Figure 5-21: FC Overview Screen 5.
Via Text Management To view the system event log or support log via Text Management Interface: • From the Telnet Main Menu, select “Log Files” • Select “Dump entire system log” or “Get support log” Figure 5-22: Error and System Event Log The system displays the commands for navigating the system event and error logs at the bottom of the window. 5.3.
5.3.4 Configuring Remote Logging The RamSan is capable of sending log messages to a remote log using standard RFC 3164 BSD Syslog Protocol messages. Your remote log host must be configured correctly to receive and log these system log messages. Via Web Interface To • • • • enable remote host logging via the web interface: Click the “Management Control Processor” graphic Click the “Network” tab Enter the remote logging host name in the text box. To disable remote host logging, leave the text box blank.
Chapter 6 – LUN Configuration The extremely versatile RamSan-325 series supports a variety of configurations and access control methods. LUN configuration is a memory-partitioning tool that allows the administrator to configure system memory into LUNs (Logical Unit Numbers) that may be assigned to specific Fibre Channel ports in the RamSan. In addition, the administrator can assign LUN specific backup modes and assign the LUNs’ access lists, which mask the visibility to specific servers.
6.1 A Example LUN Configuration This section summarizes how to change the system memory configuration from the default factory configuration to a new configuration, which consists of four partitions and has access lists that allow only four host machines to use the RamSan. This demonstration assumes the four HBAs and the RamSan’s Fibre Channel ports are attached to the same fabric. In addition, this system has 16 Gigabytes of memory.
6.2 Adding LUNs The RamSan allows the administrator to add LUNs through the Text Management Interface and the web interface. 6.2.1 Via Web Interface To • • • • • • • • • • • add LUN(s) via the web interface: Click on the “Management Control Processor” graphic Click on the “LUN Config” tab Click the “New LUN” button Select a “LUN number” from the drop-down box Enter the “Device ID” Adjust the “LUN size” using the scroll bar Assign links to FC ports (see Section 6.
6.2.2 Via Text Management To add LUN(s) via the Text Management Interface: • From the Telnet Main Menu, select “LUN Setup” • Select “Add LUN(s)” Figure 6-4: Adding LUN(s) Menu The first three rows at the top of the “Add LUN(s)” screen display details regarding the available storage space and LUN size. The second three rows display information about the LUNs that the administrator is currently adding.
6.3 Viewing LUN Status / LUN Map To help you visualize the setup of the system LUNs, TMS provides a LUN map in the Text Management Interface and the Web Interface. 6.3.1 Via the Web Interface When using the Web Interface, you can view the LUNs for the entire system or for the specific fibre channel controller: To view the LUNs for the entire system: • • • Click on the “Management Control Processor” graphic. Click on the “LUN Config” tab. This screen displays the configuration of all LUNs.
To view the LUNs available to a particular Fibre Channel Controller: • • • Click on the “Fibre Channel Controller” graphic. Click on the “Available LUNs” tab. This screen displays the available LUNs for the selected Fibre Channel Controller.
6.3.2 Via Text Management To • • • view the LUN map via Text Management Interface: From the Telnet Main Menu, select “LUN Setup” Select “Print detailed LUN map” Select “All LUNs” or a specific LUN. Figure 6-7: LUN Map Screen The LUN map, see Figure 6-7: LUN Map Screen, shows up to three configurations per page. To scroll through all of the entries, press any key other than ‘Q.’ 6.
6.4.2 Via Text Management Linking Fibre Channel Controllers • • From the Telnet Main Menu, select “LUN Setup” Select “Link/unlink fibre channel controller(s) to/from LUN(s)” Figure 6-8: Link LUNs Screen The Link LUNs screen displays the currently selected controller and port above the menu. Figure 6-8: Link LUNs Screen displays the selected controller as 2-A, which is Controller 2 Port A. • • To change the selected controller select “Select different controller”. This displays a list of controllers.
Unlinking Fibre Channel Ports from LUN To unlink a LUN from an FC controller: • • • • • • • • From the Telnet Main Menu, select “LUN Setup” Select “Link/unlink fibre channel controller(s) to/from LUN(s)” Select appropriate channel/port (See Linking Fibre Channel Controllers, above) Select “Unlink LUN(s) from selected controller” A sub-menu appears, as shown in Figure 6-9: Unlink LUNs Option, which provides a list of all LUNs that are linked to this controller.
6.5 Changing LUN Numbers The configuration utilities allow you to change the LUN numbers. 6.5.1 Via Web Interface To change LUN numbers via the Web Management Interface: • • • • • • Click on the “Management Control Processor” graphic. Click on the “LUN Config” tab. Select the LUN to edit by clicking on the LUN graphic. Click the “Modify LUN” button. Select the LUN number from the “LUN number” listbox. Click the “OK” button. 6.5.
6.6 Resizing LUNs The Text Management Interface makes it possible to change the LUN sizes. The configuration utilities allow you to both increase and decrease the size of the currently configured LUNs, to make room for more LUNs, or to ensure that the system is using all available space. 6.6.1 Via Web Interface To resize the LUNs via the Web Management Interface: • • • • • • Click on the “Management Control Processor” graphic. Click on the “LUN Config” tab.
6.7 Managing Access Lists The Text Management Interface provides the ability to create access lists for individual Fibre Channel ports. This allows the administrator to specify which worldwide port names (HBAs) are allowed to communicate with each partition. 6.7.1 Via Web Interface To manage access lists via the Web Management Interface: • • • • • • • Click on the “Management Control Processor” graphic. Click on the “LUN Config” tab. Select the LUN to edit by clicking on the LUN graphic.
Adding Access Lists To add a worldwide port name to a LUN access list: • • • • • • • Select LUN (See instructions in Section 6.5 ) From the Telnet Main Menu, select “LUN Setup” Select “Modify LUN(s)” Select “Add WWN mask to LUN” Type in the mask that you wish to add. The system automatically inserts the colons between the numbers as you type. Press [ENTER].
Setting SCSI device identifiers This allows a user to set an SCSI device identifier between 1 and 255. • • • • • • • From the Telnet Main Menu, select “LUN Setup” Select “Modify LUN(s)” Select LUN (See instructions in Section 6.5 ) Select “Set SCSI device identifier” Enter a unique device identifier from 1 to 255 and press [ENTER].
6.8 Deleting LUNs The Text Management Interface and web interface allow the administrator to delete LUNs. 6.8.1 Via Web Interface To • • • • delete LUNs via the web interface: Click on the “Management Control Processor” graphic. Click on the “LUN Config” tab. Select to LUN to delete by clicking on the LUN graphic. Click the “Delete LUN” button.
6.8.2 Via Text Management To • • • • • delete LUNs via the Text Management Interface: From the Telnet Main Menu, select “LUN Setup” Select “Delete LUN(s)” Select a LUN or LUNs and press Enter. Confirm LUN deletion by pressing “Y” or cancel by pressing “N” – see Figure 6-15: Deleting LUNs Select “Exit to the LUN configuration menu” Figure 6-15: Deleting LUNs To verify the deletion of the LUN, view the LUN Configuration menu for a total number of LUNs. • 6.
6.9.1 Via Web Interface To set the LUN’s backup mode via the Web Management Interface: • • • • • • Click on the “Management Control Processor” graphic. Click on the “LUN Config” tab. Select the LUN to edit by clicking on the LUN graphic. Click the “Modify LUN” button. Select the backup mode from the “Backup Mode” listbox. Click the “OK” button. 6.9.
6.10 Initializing LUNs The RamSan-325 allows the administrator to initialize each LUN. The initialization process erases the first few blocks of the selected LUN to remove any stale file system information. 6.10.1 Via Web Interface To initialize a LUN via the Web Management Interface: • • • • • Click on the “Management Control Processor” graphic. Click on the “LUN Config” tab. Select the LUN to edit by clicking on the LUN graphic. Click the “Modify LUN” button. Click the “Initialize” button. 6.10.
Chapter 7 – Fibre Channel Controller Configuration The RamSan allows the user to select the topology, link speed, and failover options for the Fibre Channel Controllers. RamSan supports Point-to-Point and Arbitrated loop topologies and can auto-detect the topology. It supports 1- and 2-Gbit link speeds and can auto-detect the speed. When more than one Fibre Channel Controller is installed, the controllers can be set to back each other up. The following two sections provide additional details. 7.
Via Text Management • • • From the Telnet Main Menu, select “Controller setup” Select “Select controller” Choose a controller from the sub-menu and press [ENTER] Figure 7-2: Controller Setup via Text Management Interface The top of this menu indicates the controller’s current settings.
Figure 7-3: Auto-Detect Error For more information regarding the settings appropriate for your application, please consult your fibre channel administrator. Important: Saving changes made from this menu causes the system to reset the Fibre Channel Controller, which may result in data corruption. TMS does not recommend changing the controller settings while the controller is actually transferring data. Note: Some HBAs do not support direct attach point-to-point operation.
Primary (Active, Secondary is X) This state is identical to “Primary (Active)” state with one important difference: the administrator has selected a secondary controller, Controller X, to backup this primary controller. If this primary controller loses its link for an extended period or cannot transmit data for any reason, the secondary controller mimics the failed controller, preventing performance loss. To get a controller into this state: First, configure the primary controller as “Primary (Active).
In addition, resetting the controller causes the system to loose the link temporarily. Reads and writes occurring when the administrator resets this controller back to “Primary (Active)” state result in errors because the drives appear to have been removed. TMS does not recommend configuring an active secondary controller as primary unless no transmissions are taking place. Via Web Interface To • • • • change the failover state via the web interface: Click on the “Fibre Channel Controller” graphic.
Via Text Management To view or change the state via the Text Management Interface: • From the Telnet Main Menu, select “Controller setup” Figure 7-5: Controller Setup Menu The Controller Setup screen, see Figure 7-5, displays the selected controller at the top of the screen. Next to the controller number, the display indicates the controller’s states. In Figure 7-5, the selected controller is “2” and the display indicates that the controller’s state is “Primary (Active, Secondary is 3).
7.3 Resetting a Fibre Channel Controller The system allows you to reset a fibre channel controller in the unlikely situation that a fibre channel controller becomes unresponsive. Via Web Interface To • • • change reset a fibre channel controller via the Web Interface: Click on the “Fibre Channel Controller” graphic. Click on the “Controller Setup” tab. Click the “Hard Reset” button.
7.4 Clearing Fibre Channel Controller Statistics The system allows you to clear fibre channel controller statistics in order to resolve system warnings. This feature clears the link down count, CRC error count, receive error count, and any associated system warnings. Via Web Interface To change clear the fibre channel controller statistics via the Web Interface: • Click on the “Fibre Channel Controller” graphic. • Click on the “Controller Setup” tab. • Click the “Clear Stats” button.
To view the fibre channel console through the Text Management Interface: • From the Telnet Main Menu, select “Health and status” • Select “Advanced FC options” • Select “View fibre channel console” • Select a fibre channel controller from the sub-menu • To return to the Advanced FC Options Menu, press “Q” 7.5.2 Disable/Enable Fibre Channel Login Reset Certain operating systems, including HPUX and AIX, establish fibre channel links more intermittently than standard operating systems.
Chapter 8 – SNMP Configuration 8.1 Enabling SNMP settings RamSans support the Simple Network Management Protocol (SNMP), which is the dominant network management protocol. The industry has accepted this protocol due to its relative simplicity. The SNMP standards provide a framework for the definition of management information along with a protocol for the exchange of that information. The RamSan-325 Series is compatible with SNMP V2c.
Table 1 describes the SNMP default configuration: Feature: SNMP Community Strings: SNMP Trap IPs: SNMP Traps: Default Setting: Read: Read/Write: System Location: System Contact: None configured None enabled Read ReadWrite Nothing Nothing Table 1: SNMP Default Configuration In addition, the SNMP standards allow you to enter the location of the system (i.e. “Row 11, Rack C”) and specify an administrative contact for the system (i.e. “Pat Smith, (713) 555-1212”).
To change the system location: • Select “Change the system location” • Enter the system location and press [ENTER] To change the system contact name: • Select “Change the system contact” • Enter the system contact and press [ENTER] All modifications are visible at the top of the menu. To save any changes: • Select “Save changes and exit” Via Web Management To update community information via the Web Management Interface: • Click on the “Management Control Processor” graphic. • Click on the “SNMP” tab.
8.1.2 SNMP Trap configuration The RamSan has the ability to send unsolicited messages to managers when it detects a significant event. The SNMP standard refers to this type of message as a “trap.
To remove a trap receiver from the list of Trap IPs: • Select “Remove IP address from the trap list” • Select the IP to be removed and press [ENTER] To view a list of trap receivers by IP address: • Select “Print the current trap IP list” • The interface will display the list of trap receivers. Press [ENTER] to return to the menu.
Chapter 9 – System Maintenance Texas Memory Systems designed the RamSan to be easily maintainable. You can update firmware from the web interface and easily maintain the system components. One of the main features of the RamSan is the ability to hot swap many of the system components. You can hot swap the power supplies and disk drives, meaning that you can remove and replace these components while the system is running. 9.
A new window will appear … • Click the “Browse” button to select the patch file. • Click the “Submit File” button. Figure 9-2: Uploading Patch File via Web Interface The system will ask you to confirm your password: • Enter the system password into the text field • Click the “Patch” button.
The system will begin to update the firmware and provide progress in the patching process: Important: Do not close this window while the system is being patched. • • Once the update is complete, power off and then power on the RamSan (The front panel will provide a reminder). The firmware update is complete. Figure 9-4: Firmware Update Progress Window 9.2 Hot Swapping Power Supplies The RamSan-325 series includes two power supplies. The system only requires one functioning power supply to run.
9.3 Hot Swapping Disk Drives The RamSan-325 includes four internal hard disk drives in a RAID configuration. The RamSan’s internal disk drives are equipped with industry standard Self-Monitoring, Analysis and Reporting Technology (SMART). The RamSan uses SMART to track vital hard drive performance statistics, which helps it to diagnose imminent disk failures. The RamSan system monitoring software queries the disks periodically about their SMART status.
9.4 Batteries The RamSan-325 is equipped with three redundant 30-minute sealed lead acid batteries. The batteries are designed to protect the data in DDR RAM memory. If the RamSan-325 looses external power, the system continues to function by running on the internal batteries. Even if both power supplies are removed or fail, the batteries will continue to operate. After power fails, the system remains in an active state for up to five minutes.
Chapter 10 – Troubleshooting The RamSan is a complex system with many redundant features to safeguard your data; however, components can fail. The RamSan has many ways to inform the user about what is happening inside the system. Rather than try to list all the different possible failures, this section explains how to identify and solve problems. 10.1 System Event Log In the case of a system failure, review the system event log to determine what failed and when it failed.
Chapter 11 – Specifications 11.1 Physical Characteristics Rack Mount Size: Weight: Voltage: Ventilation: 3U (5.25”) x 26” deep up to 90 lbs. 90 ~ 264 VAC Front to back airflow 11.2 Operating Environment Temperature: Max relative humidity: (non-condensing) Power consumption: 32-85 °F (0-30 °C) 80% 350 W 11.
Appendix A – RamSan-325 Series Replacement Parts Figure A-1 MCP-65 Management Control Processor Figure B-2 FC-65 Dual Channel 2-Gigabit Fibre Channel Controller RamSan-325/325c User’s Manual - 104 -
Figure B-3 Power Supply Module Figure A-5 Memory Blade RamSan-325/325c User’s Manual - 105 -
Figure A-6 120 Gigabyte Replacement Hard Drive RamSan-325/325c User’s Manual - 106 -
Appendix B – FCC/Safety Notices Warning: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
Appendix C – Warranty, Maintenance, Field Service, and Repair Policy BRONZE WARRANTY Equipment purchased from Texas Memory Systems, Inc. (TMS) is warranted for 1 year from the date of shipment. The warranty includes return-to-factory service for equipment that does not meet its published specification during normal operation.
container. Once the RMA has been issued, the items must be returned to TMS within thirty (30) days, or else the RMA will be cancelled. SILVER WARRANTY - Advanced Parts Replacement Texas Memory Systems Silver Warranty may be purchased which provides all of the features of the Bronze plan.
OUTSIDE OF WARRANTY Faulty equipment may be returned to the factory for repair up to five years after purchase with appropriate RMA. The customer is responsible for shipping the equipment back to the factory, together with a detailed description of the nature of the problem and the tests used to determine the failure. TMS will take all reasonable steps to repair or, at the discretion of TMS, replace the faulty equipment within thirty working days of receipt.
Appendix D – Serial Port Settings You may connect to the management port with either a DB-9 serial cable or an RJ-45 Ethernet cable. The following settings apply to the serial port. Port Settings To connect to the RamSan 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.
Appendix E – SNMP Trap Definitions The following list provides detailed information about the SNMP v2 notifications (traps) that the RamSan 325 generates because of various system events. Each trap contains a timestamp, trap OID, brief message, and sometimes a relevant system state variable. The system sends traps to each IP address found in the SNMP trap list (configurable through the web and Telnet monitoring tools).
Name Description Includes temp-state-notif The temperature state has changed Message Temperature State: -1 notImplemented This indicates there may be an SNMP reporting problem 0 1 2 noState error warn N/A N/A The temperature has dropped below acceptable levels and should be moved to a warmer environment. 3 good The temperature is within specification. 4 warnHigh The temperature level has risen above acceptable bounds.
Name Description Includes Name Description Includes power-state-notif The power state has changed Message Power State: -1 notImplemented This indicates there may be an SNMP reporting problem 0 1 noState error N/A Voltage levels are dangerously low; the system may be powered off. 2 warn Voltage and/or current levels are below specification. 3 good Voltage and current levels are within specification. 4 warnHigh Voltage and/or current levels are above specification, or AC power has been lost.
Name Description Includes battery-state-notif The battery state has changed Message Battery State: -1 notImplemented This indicates there may be an SNMP reporting problem 0 1 noState error N/A The battery has failed a periodic battery test and may need to be serviced, or one or more of the batteries have voltages that threaten the system’s ability to backup data in the event of a power loss. 2 warn The batteries may be charging after being used, this is expected after power loss.
Name Description Includes Name Description Includes fan-state-notif The fan state has changed Message Fan State: -1 notImplemented This indicates there may be an SNMP reporting problem 0 1 noState error N/A One or more fan channels have stopped; temperature warnings that will cause the system to shutdown are imminent. 2 warn Single fans in one or more fan channels have stopped or are running slowly. There is no immediate danger, but the fans may need to be serviced.
Name Description Includes array-state-notif The disk array state has changed Message Name Description Includes fc-state-notif A fibre channel controller state has changed Message Device Number Disk State: -1 notImplemented This indicates there may be an SNMP reporting problem 0 1 2 3 noState error warn good N/A N/A N/A The FC controller is working properly. 4 warnHigh The FC controller has detected some type of error; possibilities include: RX errors, CRC errors, and corrected ECC errors.
