Reset Scenarios - Sun Oracle Netra T5440 Administration Manual

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Note – If POST or OpenBoot firmware detects a nonfatal error associated with the
normal boot device, the OpenBoot firmware automatically unconfigures the failed
device and tries the next-in-line boot device, as specified by the boot-device
configuration variable.
If a fatal error is detected by POST or OpenBoot firmware, the system does not
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boot regardless of the settings of auto-boot? or auto-boot-on-error?. Fatal
nonrecoverable errors include the following:
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For more information about troubleshooting fatal errors, refer to the Sun Netra T5440
Server Service Manual.

Reset Scenarios

Three ILOM /HOST/diag configuration properties, mode, level, and trigger,
control whether the system runs firmware diagnostics in response to system reset
events.
The standard system reset protocol bypasses POST completely unless the virtual
keyswitch or ILOM properties are set as follows:
TABLE 2-5
Keyswitch
/SYS keyswitch_state
42 Sun Netra T5440 Server Administration Guide • April 2010
Memory failure. Given a failed DIMM, the firmware will unconfigure the entire
logical bank associated with the failed module. Another nonfailing logical
bank must be present in the system for the system to attempt a degraded boot.
Any CPU failed
All logical memory banks failed
Flash RAM cyclical redundancy check (CRC) failure
Critical field-replaceable unit (FRU) PROM configuration data failure
Critical system configuration card (SCC) read failure
Critical application-specific integrated circuit (ASIC) failure
Virtual Keyswitch Setting for Reset Scenario
Value
diag