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Date:      Mon, 12 Apr 2010 08:27:39 -0400
From:      Derek Buttineau <derek@csolve.net>
To:        freebsd-questions@freebsd.org
Subject:   LSI SAS 9211-8i
Message-ID:  <36322934-DF82-4702-8C08-7F80B467405A@csolve.net>

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We're looking at replacing the HP Raid controller in a HP DL380 G5 with =
a controller that supports JBOD for utilizing ZFS.  We're currently =
trialling this controller, an HP LSI board =
(https://h10057.www1.hp.com/ecomcat/hpcatalog/specs/provisioner/05/347786-=
B21.htm), but we're finding that it has some issues with the mpt driver, =
namely:

Driver doesn't seem to realize when a drive has been pulled, instead =
mptutil shows that the drive is still there but only 512B in size.
Driver also doesn't seem to realize when a drive has been reinserted

Both of those seem to end up leading to corruption in the zpool.

Another weird thing with that card, is that if a drive is pulled and the =
card reinitialized (for example rebooting), the order of the drives =
shift (i.e. if you pull da2, da3 becomes da2, da4 becomes da3, etc), =
which again causes problems with the zpool.

Anyway, the LSI SAS 9211-8i looks like a nice card, but am having =
difficulties determining if it'll be supported by the mpt driver.  Does =
anyone know if it'll work, or does anyone have any suggestions for a =
good JBOD controller for ZFS and hotswap?

Thanks.

--
Regards,

Derek Buttineau
Internet Systems Developer
Compu-SOLVE Internet Services
Compu-SOLVE Technologies, Inc

Phone:  705-725-1212 x255
E-Mail:  derek@csolve.net




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