PERC4/SC & hotswap

Matt Domsch Matt_Domsch at
Tue Jan 23 12:41:58 CST 2007

On Tue, Jan 23, 2007 at 04:13:25PM +0000, Marcus Williams wrote:
> Hi -
> We have a Poweredge 1800 with hotswap scsi and a PERC 4/SC. I'm
> wondering if its possible to remove the PERC but retain the hotswap
> bays/facility or is the PERC required for the hotswap?
> We're contemplating moving back to s/w raid but want to keep the hotswap
> if possible.

The PERC firmware knows how to talk SAF-TE or SES to the enclosure
backplane, which, as far as I know, no other Linux tools today do,
including software RAID.  It's just a matter of someone writing it,
but I've been saying that for ~8 years... :-)

Matt Domsch
Software Architect
Dell Linux Solutions &
Linux on Dell mailing lists @

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