Thursday, May 09, 2013

Decoding MPT_SAS drives in Nexenta/Illumos

Another group on campus had SAS resets on a drive, but the drive never failed. All we ever got was something like this in dmesg reports:

May  9 07:51:50 hostname scsi: [ID 365881] /pci@0,0/pci8086,d138@3/pci1000,3010@0 (mpt_sas0):
May  9 07:51:50 hostname  Log info 0x31080000 received for target 9.
May  9 07:51:50 hostname  scsi_status=0x0, ioc_status=0x804b, scsi_state=0x0

We have a target address, but a zpool status or equivalent never gives us that target number, just a long string like "c0t50014EE057D81DE7d0". How to find the drive to off-line and replace it?

For future reference, you'll need to follow this link:

You'll also need the lsiutil, which I is part of the LSIUtil Kit 1.63. For reference: One valid download link --- Its next to impossible to find this on LSI's site and the Oracle references are all down now it seems.

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