Sun System Handbook - ISO 3.4 June 2011 Internal/Partner Edition | |||
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Solution Type Technical Instruction Sure Solution 1009241.1 : Sun Fire[TM], Netra[TM] servers: Lights Out Management(LOM) troubleshooting information to gather.
PreviouslyPublishedAs 212786
Applies to:Sun Netra 440 ServerSun Fire V120 Server Sun Netra T1 AC200 Server Sun Netra T1 DC200 Server Sun Netra T1400 Server All Platforms GoalThis document provides what Lights Out Management (LOM) information should be SolutionThe Fault LED on a Sun Fire server or Netra server can have three states: off, solid, or flashing. Refer to the following URL, and select the related server for more information about LEDs:https://support.oracle.com/handbook_private/General/LEDs_TOC.html
To determine what actually failed, or what caused the fault condition, service personnel need to access the system controller, the Lights Out Management(LOM). You can access the LOM as follows: - Through the LOM management serial port, USING THE LOM MANAGEMENT SERIAL PORT The LOM Management port shares the serial port with the console. Use the #. key sequence to go to the "lom" prompt if it is not already there. The "console" command will provide access back to the server's console. Dropping to the lom prompt does not affect the OS in any way, unless you issue strong commands, such as "break", "reset", or "poweroff" from the LOM.Run the following commands from the lom> prompt when debugging information is needed: 1. Hardware failures, such as the power supply and the fan, can be detected by the "environment" command. Any component's state labeled as "FAILED" might indicate a bad component requiring replacement. Sample output is as follows:lom>environment Fans: PSUs: Temperature sensors: Overheat sensors: Circuit breakers: Supply rails: 2. If the environment command does not show any failing components, check the events log for the trigger. Use the "showlogs -v" command from the lom> prompt, as shown below: lom>showlogs -v Rocker switch/Power switch/Power Button switch turned to off: Input power source failure: Fan failure: 3. The LOM can also provide console output from a prior event such as a fatal reset. Use the "consolehistory" command to provide this information, as shown below: lom>consolehistory 4. Output from the LOM "version" command may be needed to solve LOM specific problems. Its output appears as follows: lom>version Once the fault has been fixed, the service personnel might need to turn off the Fault LED. This can easily be achieved by issuing a "faultoff" command from the lom> prompt. USING THE LOM COMMAND FROM THE OS (IF LOMLITE PACKAGES INSTALLED) The "lom" command can be issued from the OS provided that the "LOMlite" packages have been installed. Use the "pkginfo(1)" command to check if the "LOMlite" packages have been installed:# pkginfo | grep SUNWlom 1. Again, check for problems with the environment as follows: # lom -plvtf 2. The following command will display the last 50 events: # lom -e 50 The console history and LOM firmware versions can only be obtained by the serial port. To turn off the Fault LED, use the "lom -F off" command from the OS. Internal Comments Important note: The Fault LED can be turned on manually by the "lom" command in the "LOMlite" packages while the OS is running. In a typical scenario, the user programmable alarms are sufficient for use in their applications. However, there are occasions when users meddle with the fault LED using the "lom -F on" to get more alarms (that is, Combination of Fault LED + Alarm LEDs). Do not be surprised to find Fault LED and Alarms being set when there are no hardware faults and showlogs does not indicate errors. For example: +0h22m30s host power off +0h22m51s host power on 11/5/2003 6:12:55 LOM time reference 11/19/2003 6:19:35 LOM time reference 12/3/2003 6:26:16 LOM time reference +17d+5h55m10s Fault LED ON +59d+20h18m26s host power off +0h0m0s LOM booted +0h0m3s host power on 2/1/2004 3:25:22 LOM time reference Additional LOM information can be found at URL: http://panacea.uk.oracle.com/twiki/bin/view/Products/ProdInfoLOM https://support.oracle.com/handbook_private/General/LEDs_TOC.html can be found internally at URL: http://support.us.oracle.com/handbook_internal/General/LEDs_TOC.html lom, lomlite, fault, LED, faulton, faultoff, showenvironment, environment, showlogs, alom, consolehistory Previously Published As 77137 Attachments This solution has no attachment |
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