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Date:      Fri, 20 Apr 2007 05:45:20 +0200
From:      des@des.no (Dag-Erling =?iso-8859-1?Q?Sm=F8rgrav?=)
To:        rick-freebsd@kiwi-computer.com
Cc:        fs@freebsd.org, piso@freebsd.org
Subject:   Re: ZFS + replacing failing hard-drive.
Message-ID:  <86ejmfbtf3.fsf@dwp.des.no>
In-Reply-To: <20070420004131.GA65715@keira.kiwi-computer.com> (Rick C. Petty's message of "Thu, 19 Apr 2007 19:41:31 -0500")
References:  <20070418104155.GA31727@eschew.pusen.org> <86hcrdlqak.fsf@dwp.des.no> <20070418144103.GB31727@eschew.pusen.org> <20070418155156.GB20441@keira.kiwi-computer.com> <20070418180200.GA32061@eschew.pusen.org> <86odlku5xg.fsf@dwp.des.no> <20070419173316.GA57227@keira.kiwi-computer.com> <4627EC02.8070103@nokia.com> <4627F7BE.5090606@mawer.org> <20070420004131.GA65715@keira.kiwi-computer.com>

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"Rick C. Petty" <rick-freebsd@kiwi-computer.com> writes:
> I'm reluctant to point fingers at the drives (although this is often a go=
od
> first guess)..  I have access to a few dozen disks from two separate SATA
> batches.  I've noticed that when the identical drives are on the same
> Promise controller, FreeBSD reports DMA timeouts occasionally.

Interesting.  All my DMA timeout issues have indeed been with groups
of identical drives (though different groups from different
manufacturers)

DES
--=20
Dag-Erling Sm=F8rgrav - des@des.no



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