Running post, Controlling how post runs – Sun Microsystems Sun Fire T1000 User Manual

Page 39

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Chapter 2

Sun Fire T1000 Server Diagnostics

27

If you do not provide a command-line argument, all FRUs are listed.

Running POST

Power on self test (POST) is a group of PROM-based tests that run when the server
is powered on or reset. POST checks the basic integrity of the critical hardware
components in the server (motherboard, memory, and I/O buses).

If POST detects a faulty component, it is disabled automatically. If the system is
capable of running without the disabled component, the system will boot when
POST is complete. For example, if one of the processor cores is deemed faulty by
POST, the core will be disabled, and the system will boot and run using the
remaining cores.

Devices can be manually enabled or disabled using ASR commands (see

“Managing

System Components with Automatic System Recovery Commands” on page 40

).

Controlling How POST Runs

The server can be configured for normal, extensive, or no POST execution. You can
also control the level of tests that run, the amount of POST output that is displayed,
and which reset events trigger POST by using ALOM variables.

/SPD/Timestamp: MON OCT 03 12:00:00 2005

/SPD/Description: DDR2 SDRAM, 2048 MB

/SPD/Manufacture Location:

/SPD/Vendor: Infineon (formerly Siemens)

/SPD/Vendor Part No: 72T256220HR3.7A

/SPD/Vendor Serial No: d040924

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