T-Series servers with LSI106x(e) (mpt driver) / LSI2x08 (mpt_sas driver) controllers reports "Command Timeout" for all internal disks (HDD/SSD) Caused by mpt/mpt_sas driver bug (Doc ID 1627528.1)

Last updated on JUNE 06, 2017

Applies to:

SPARC T5-2 - Version All Versions to All Versions [Release All Releases]
SPARC T3-4 - Version Not Applicable to Not Applicable [Release N/A]
SPARC T5-4 - Version All Versions to All Versions [Release All Releases]
SPARC T5-8 - Version All Versions to All Versions [Release All Releases]
Solaris Operating System - Version 10 3/05 to 11.1 [Release 10.0 to 11.0]
Oracle Solaris on SPARC (64-bit)

Symptoms

The system reported fault event PCIEX-8000-0A and there were SCSI command timeouts reported against all internal disks, in this case Solid State Disks (SSDs) in a T4-2 system.
The server's response was very slow (primary / alternate domains and zones) and after a reboot the system worked again without any problems, but the issue re-appeared.

Cause

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