Date: Fri, 27 Aug 2004 01:00:33 +0200 From: Brad Knowles <brad@stop.mail-abuse.org> To: Craig Boston <craig@xfoil.gank.org> Cc: Scott Long <scottl@freebsd.org> Subject: Re: PLEASE TEST: IPI deadlock avoidance patch Message-ID: <p0600205dbd541bd21112@[10.0.1.3]> In-Reply-To: <20040826221017.GD40029@nowhere> References: <20040826145324.GA40029@nowhere> <!~!UENERkVCMDkAAQACAAAAAAAAAAAAAAAAABgAAAAAAAAA0VcX9IoJqUaXPS8MjT 1PdsKAAAAQAAAA2oPguFcdQEmViVa1XUW64QEAAAAA@telia.com> <20040826214936.GC40029@nowhere> <412E5D24.3080809@freebsd.org> <20040826221017.GD40029@nowhere>
next in thread | previous in thread | raw e-mail | index | archive | help
At 5:10 PM -0500 2004-08-26, Craig Boston wrote:
> Two of the drives in the RAID5 are on:
>
> atapci0: <Intel PIIX4 UDMA33 controller>
> ad0: 9541MB <Maxtor 51024H2/DAC10SC0> [19386/16/63] at ata0-master UDMA33
> ad2: 9541MB <Maxtor 91024U3/RA530JN0> [19386/16/63] at ata1-master UDMA33
>
> The third drive is on:
> ahc0: <Adaptec 2940 Ultra SCSI adapter>
Ouch. Bad juju, bwana. RAID-5 really, really wants all drives
to be 100% identical, in every way, shape, and form. If they're not
and you're very, very lucky, it might just be slow.
--
Brad Knowles, <brad@stop.mail-abuse.org>
"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."
-- Benjamin Franklin (1706-1790), reply of the Pennsylvania
Assembly to the Governor, November 11, 1755
SAGE member since 1995. See <http://www.sage.org/>; for more info.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?p0600205dbd541bd21112>