PE 2600 - PowerVault 110T SDLT and Perc 4i Matt_Domsch at
Thu Oct 2 13:07:00 CDT 2003

> We are currently in the process of replacing our existing 
> fileserver and we're considering a PE 2650 with a Perc 4DI and a
> 110T SDLT.  Our intention is to configure the server for RAID 5 (3 drives)
> the first channel with the Tape mechanism on the second.
> Is this possible/practical/feasible?  My major concern is the 
> tape device interfering with the RAID.

By setting the second channel of the PERC 3/Di to "SCSI" mode instead of
"RAID" mode in the BIOS, and loading the aic7xxx SCSI driver after aic7xxx
in /etc/modules.conf, a completely separate device driver handles the device
with the tape attached - it can't mess up the RAID.

Tape drives don't belong on the same SCSI bus as RAID disks.  That way lies


Matt Domsch
Sr. Software Engineer, Lead Engineer
Dell Linux Solutions
Linux on Dell mailing lists @

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