Sun Fire T1000/T2000, Sun Netra T2000 DIMMs with CEs (correctable errors) are being unnecessarily flagged by POST as faulty (Doc ID 1516048.1)

Last updated on DECEMBER 05, 2016

Applies to:

Sun Fire T1000 Server - Version All Versions and later
Sun SPARC Enterprise T1000 Server - Version All Versions and later
Sun Fire T2000 Server - Version All Versions and later
Sun SPARC Enterprise T2000 Server - Version All Versions and later
Sun Netra T2000 Server - Version All Versions and later
Information in this document applies to any platform.

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Symptoms

DIMMs with CEs (correctable errors) are being unnecessarily flagged by POST as faulty.

Below is an example error message of a POST fault for a single DIMM.  If this error message occured when POST
was run with diag_level set to max, this is probably a case where the DIMM was flagged by POST unnecessarily.

sc> showfaults -v
ID Time           FRU               Fault
1 OCT 13 12:47:27 MB/CMP0/CH0/R0/D0 MB/CMP0/CH0/R0/D0 deemed faulty and disabled

 

Example #1:  POST fault for a single DIMM
sc> showfaults -v
ID Time           FRU               Fault
1 OCT 13 12:47:27 MB/CMP0/CH0/R0/D0 MB/CMP0/CH0/R0/D0 deemed faulty and disabled

Example #2:  POST fault for multiple DIMMs (this example shows two DIMMs on the same channel/rank,
which in most cases is a UE)
sc> showfaults -v
ID Time           FRU               Fault
1 OCT 13 12:47:27 MB/CMP0/CH0/R0/D0 MB/CMP0/CH0/R0/D0 deemed faulty and disabled
2 OCT 13 12:47:27 MB/CMP0/CH0/R0/D1 MB/CMP0/CH0/R0/D1 deemed faulty and disabled

Example #3:  FMA fault and a POST fault on the same DIMM (the DIMM should be replaced as it
exceeded the FMA page retire threshold)
sc> showfaults -v
ID Time           FRU               Fault
0 SEP 09 11:09:26 MB/CMP0/CH0/R0/D0 Host detected fault,
MSGID:SUN4V-8000-DX UUID: 7ee0e46b-ea64-6565-e684-e996963f7b86
1 OCT 13 12:47:27 MB/CMP0/CH0/R0/D0 MB/CMP0/CH0/R0/D0 deemed faulty and disabled

 

Changes

Contributing Factors

Sun Fire T1000 and T2000 systems with firmware prior to 6.3.0 the default setting of diag_level is "max".

Cause

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