Sun Fire T2000 Server
 
Sun Fire T1000 Server
 
Sun SPARC Enterprise T2000 Server
 
Sun Netra T2000 Server
 

GCS>Sun Microsystems>Servers>CMT Servers
 

Applies to:

Purpose

Last Review Date

Instructions for the Reader

Troubleshooting Details

1. Check incoming power. Confirm that the power cord(s) are connected securely at both ends and that the incoming power source is known to be operational and within the required specifications. ( 100 to 240 VAC, 50-60 Hz) If uncertain check for tripped circuit breaker, blown fuse, etc. Reseat power cord(s) at both ends. Note: If you have just disconnected the power cord from the power supply, you must wait about five seconds before reconnecting the power cord to the power supply.

2. Check all external LED's (make special note of any amber LED's).

Ensure that the PSU AC input LED is lit green. (This indicates sufficient incoming AC power.)

Check that the Power Okay LED and is lit solid green (which indicates that the OS is up and operational) or blinking green (which would indicate that the machine is either in standby mode or running POST diagnostics).

If the power cord is confirmed to be connected to a known good power source, yet the AC input LED is not lit green, there may be a problem with the power supply unit. Please contact My Oracle Support for further assistance.

3. Issue the poweron command via the SC environment. 

Document 1009721.1: Establishing a connection to Sun Fire [TM] T1000 or T2000 System Controller, for assistance with accessing the SC environment

Powering on the system requires that the user issue the  poweron command via the SC environment to actually power up the server and start the initialization process.

sc> poweron

4. Check and display the power supply status (and other environmental data) via the SC showenvironment  command

sc> showenvironment

T1000 output sample:

------------------------------------------------------------------------------
Power Supplies:
------------------------------------------------------------------------------
Supply  Status          Underspeed  Overtemp  Overvolt  Undervolt  Overcurrent
------------------------------------------------------------------------------
PS0     OK              OFF         OFF       OFF       OFF        OFF

T2000 output sample:

-

-----------------------------------------------------------------------------

Power Supplies:
------------------------------------------------------------------------------
Supply  Status          Underspeed  Overtemp  Overvolt  Undervolt  Overcurrent
------------------------------------------------------------------------------
PS0     OK              OFF         OFF       OFF       OFF        OFF
PS1     OK              OFF         OFF       OFF       OFF        OFF

5. Check the keyswitch setting via the SC   showkeyswitch command. This must be set to the  normal ,  locked  or  diag  position. The machine will not be able to power itself on if set to the  stby  setting. Use the setkeyswitch command to change the keyswitch setting if needed.

6. Check the Top Cover Interlock switch (aka Intrusion Switch) . If the incoming power is confirmed to be good, the power supplies are operational, the keyswitch position is verified to be correct, the poweron command is issued but the machine still does not power up -  then the user should check the Top Cover Interlock switch. Usually this is done by simply ensuring that the Top Cover is seated properly. Never run the system with the top cover removed. The top cover must be in place for proper air flow. The cover interlock switch immediately shuts the system down when the cover is removed.

If poweron command is issued with side cover removed or not seated, the following will be displayed:

sc> poweron

Host poweron is disabled due to:

Chassis cover removed.

sc>

7. T2000 must have power supply PS0 installed.

The T2000 server may not power on when Power Supply 0 (PS0) is not installed in the chassis. The following error is displayed on the console: No CPU Signon

Do not remove PS0. If PS0 fails, leave it installed until you are ready to replace it. If you must replace PS0, shut the Operating System down first and then poweroff the server. This problem is not relevant for PS1, therefore PS1 can be hot-swapped.

Reference: Sun Fire T2000 Server Product Notes

8. Use the SC showsc command to display the sc_powerstatememory setting.

The sc_powerstatememory variable enables the user to specify the state of the host server as false (keep the host server off) or true (return the server to the state it was in when the power was removed). This is useful in the event of a power failure.

For example, if the host server is running when power is lost and the sc_powerstatememory variable is set to false , the host server remains off when power is restored. If the sc_powerstatememory variable is set to true , the host server restarts when the power is restored.

The values for this variable are as follows.

Use the setsc command to change this setting if desired.

At this point, if you have validated that each troubleshooting step above  is true for your environment, and you are still unable to successfully power on your T1000/T2000 , further diagnosis is required. For further assistance you may contact Sun Support.

For more assistance with SC ALOM commands and parameters, reference the Advanced Lights Out Management (ALOM) CMT v1.4 Guide

Sun Fire T1000 Server Documentation:

Sun Fire T2000 Server Documentation:

their environment and the issue still exists, gather and record all
pertinent information and data into case note then escalate to your
Sun escalation path.

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