zfs discuss - Nov 2009 - [storage-discuss] ZFS on JBOD storage, mpt driver issue - server not responding

miro at cybershade.us said:
> So at this point this looks like an issue with the MPT driver or these SAS
> cards (I tested two) when under heavy load. I put the latest firmware for
the
> SAS card from LSI''s web site - v1.29.00 without any changes,
server still
> locks.
> 
> Any ideas, suggestions how to fix or workaround this issue? The adapter is
> suppose to be enterprise-class. 
We have three of these HBA''s, used as follows:
	X4150, J4400, Solaris-10U7-x86, mpt patch 141737-01
	V245, J4200, Solaris-10U7, mpt patch 141736-05
	X4170, J4400, Solaris-10U8-x86, mpt/kernel patch 141445-09

None of these systems are suffering the issues you describe.  All of
their SAS HBA''s are running the latest Sun-supported firmware I could
find for these HBA''s, which is v1.26.03.00 (BIOS 6.24.00), in LSI
firmware
update 14.2.2 at:
	http://www.lsi.com/support/sun/

In that package is also a v1.27.03.00 firmware for use when connecting
to the F5100 flash accelerator, but it''s clearly labelled as only for
use with that device.

Anyway, I of course don''t know if you''ve already tried the
v1.26.03.00
firmware in your situation, but I wanted to at least report that we
are using this combination on Solaris-10 without experiencing the
timeout issues you are having.

Regards,

Marion