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Date:      Wed, 2 Mar 2011 17:48:59 -0500
From:      Andrew Boyer <aboyer@averesystems.com>
To:        Erich Weiler <weiler@soe.ucsc.edu>
Cc:        "freebsd-scsi@freebsd.org" <freebsd-scsi@freebsd.org>
Subject:   Re: MFI driver issues
Message-ID:  <EA98BA02-E1C1-4AAA-8651-EE611AE5A4DB@averesystems.com>
In-Reply-To: <4D6E8006.5040809@soe.ucsc.edu>
References:  <E8A852F2-A3CF-45E7-8CE1-F8C50CD202A4@soe.ucsc.edu> <4D6D48C6.10900@soe.ucsc.edu> <4D6D6DAC.8050601@soe.ucsc.edu> <4D6E8006.5040809@soe.ucsc.edu>

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I don't believe it's enough to compare the chip names (SAS2008, SAS2108, =
etc.).  The mps driver advertises support for a list of SAS2108 devices, =
but the SAS2108 chips I have access to (in MegaRAID SAS9261-8i =
controllers) report PCI IDs that are only supported by MFI.

My discussions with LSI support led me to believe that the claim of 2108 =
support in mps is incorrect but I've never confirmed that with anyone =
here.

-Andrew

On Mar 2, 2011, at 12:36 PM, Erich Weiler wrote:

>> I guess it would be most useful if I could somehow force MFI to be =
used on my boot disk as it is now, but use MPS on my 24 JBOD disks =
coming from the Perc H800 SAS controller...?  They are JBOD because I =
have them roped into a ZFS filesystem.
>=20
> I just checked and the Perc H800 uses the LSI SAS2108 chipset, which =
in theory is supposed to be picked up by the MPS driver, according to =
this web page:
>=20
> http://leaf.dragonflybsd.org/cgi/web-man/?command=3Dmps&section=3DANY
>=20
> but instead it is picked up by the MFI driver...?  What gives?  ;)  Is =
it that the MPS driver *and* the MFI driver both support the LSI SAS2108 =
chipset, but the MFI driver checks first during boot, so it wins?
> _______________________________________________
> freebsd-scsi@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-scsi
> To unsubscribe, send any mail to =
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--------------------------------------------------
Andrew Boyer	aboyer@averesystems.com







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