T5xx0: DIMM service LED remains lit after DIMM replacement

Asset ID:	1-72-1669799.1
Update Date:	2017-10-05
Keywords:

Solution Type Problem Resolution Sure

Solution 1669799.1 : T5xx0: DIMM service LED remains lit after DIMM replacement

Applies to:

Sun SPARC Enterprise T5120 Server - Version All Versions to All Versions [Release All Releases]
Sun SPARC Enterprise T5220 Server - Version All Versions to All Versions [Release All Releases]
Sun SPARC Enterprise T5140 Server - Version All Versions to All Versions [Release All Releases]
Sun SPARC Enterprise T5240 Server - Version All Versions to All Versions [Release All Releases]
Sun SPARC Enterprise T5440 Server - Version All Versions to All Versions [Release All Releases]
Information in this document applies to any platform.

Symptoms

Customer had a faulted DIMM replaced

All faults had been cleared from Solaris and no errors reported in ILOM, ALOM, but the service LED was reported as ON (steady) by ILOM, ALOM and prtdiag. Hereby an example from the ILOM side:

/SYS/MB/CMP0/BR1/CH0/D0
Properties:
type = DIMM
ipmi_name = /P0/BR1/CH0/D0
component_state = Enabled
fru_name = 2048MB DDR2 SDRAM FB-DIMM 333 (PC2 5300)
fru_description = FBDIMM 2048 Mbyte
fru_manufacturer = Micron Technology
fru_version = FFFFFF
fru_part_number = 511-1151-01 Rev 05
fru_serial_number = 002C080903DF3F3E3E
fault_state = OK
clear_fault_action = (none)

/SYS/MB/CMP0/BR1/CH0/D0/SEEPROM
Properties:
type = PROM

/SYS/MB/CMP0/BR1/CH0/D0/SERVICE
Properties:
type = Indicator
ipmi_name = /P0/BR1/CH0/D0/S
value = On <<<---

Cause

Bug:15670052

Solution

From the SP (ALOM/ILOM) toggle a state change (toggling a state change has no effect on a running system):

ALOM

sc> disablecomponent /SYS/MB/CMP0/BR1/CH0/D0

wait 30 seconds and confirm the change, sc> showcomponent /SYS/MB/CMP0/BR1/CH0/D0, sc> showfru /SYS/MB/CMP0/BR1/CH0/D0

sc> enablecomponent /SYS/MB/CMP0/BR1/CH0/D0

wait 30 seconds and confirm the change, sc> showcomponent /SYS/MB/CMP0/BR1/CH0/D0, sc> showfru /SYS/MB/CMP0/BR1/CH0/D0

ILOM

-> set /SYS/MB/CMP0/BR1/CH0/D0 component_state=disabled

wait 30 seconds and confirm the change, -> show -l all /SYS/MB/CMP0/BR1/CH0/D0

-> set /SYS/MB/CMP0/BR1/CH0/D0 component_state=enabled

wait 30 seconds and confirm the change, -> show -l all /SYS/MB/CMP0/BR1/CH0/D0

References

<BUG:15670052> - SUNBT6986073 PRTDIAG REPORTS "STEADY" FLAG ON DIMM AFTER DIMM REPLACEMENT

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