RELENG_8 / mpt / zpool Errors

Matt Thyer matt.thyer at
Thu Sep 15 03:32:51 UTC 2011

On Sep 15, 2011 12:42 AM, "Tim Gustafson" <tjg at> wrote:
> > I don't know what's out there having chosen only one such card for
> > home use. So you'll need to do your own research. Start with looking
> > at any card with the right chip and then look for evidence that people
> > have used said card with FreeBSD.
> LSI has the SAS 9200-8e, which is based on the SAS 2008 chipset, which the
mps (not the mpt) driver claims to support.  We are currently using another
controller that uses the SAS 2008 chipset in this same box for the internal
OS drives and have not had any problems with it.  So, that makes me feel
> Does anyone have any recommendation for or against the 9200-8e?

The SAS 2008 chip (SAS 6G) is the one that the FreeBSD mps driver has
problems with when used with port expanders.

It's the older SAS 3G chip that works OK with FreeBSD I think.

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