[OmniOS-discuss] scsi command timeouts

[Schweiss, Chip]

When ever a disk goes south, several disk related takes become painfully
slow.  Boot up times can jump into the hours to complete the disk scans.

The logs slowly get these type messages:

genunix: WARNING /pci at 0,0/pci8086,340c at 5/pci15d9,400 at 0 (mpt_sas0):
    Timeout of 60 seconds expired with 1 commands on target 16 lun 0

I thought this /etc/system setting would reduce the timeout to 5 seconds:
set sd:sd_io_time = 5

But this doesn't seem to change anything.

Is there anyway to make this a more reasonable timeout, besides pulling the
disk that's causing it?   Just locating the defective disk is also
painfully slow because of this problem.

-Chip
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