PLEASE TEST: IPI deadlock avoidance patch
brad at stop.mail-abuse.org
Thu Aug 26 16:04:46 PDT 2004
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 at 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.
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