I have come across several RAID units in the field some on 51E's and
some on 51D (either AP or AW)
I have also seen these problems you mention.
However, beeing very critical about these units, I have learnt that
installation if the things is a VERY DELICATE matter.
Except for one case (where the RAID SCSI controller cabinet was
defective) all of the problems I have seen where due to poor
installation.
In all of the cases the problem was either caused by bent pins on the
SCSI cables (including the interconnection cables on the RAID unit
itself) Be aware that the damageg cable can (and at least once has)
damage the connector in the RAID unit. This can be hard to discover.
Try running with the RAID unit as the onlt SCSI device on the chain. Be
aware that the RAID unit is always the LAST device (no execeptions!!!)
on the SCSI chain and preferably the ONLY device on the SCSI chain.
The only device that can cause problems in this case is the tapedrive,
which is a "narrow device" despite its wide (68 pin) SCSI connector.
ON the 51D the CD-ROM is an IDE device so this one should not be causing
trouble on the SCSI chain.
Hope this helps
RD (FoxboroNL)
"Kinoshita, Lisa:" wrote:
>
> Does anyone else have an AW51D with RAID drive operating? We have had
> nothing but problems since we installed ours for a small control system...it
> locks up and dies continually (usually identifies a "SCSI" problem and has
> to be hard rebooted). We have replaced just about every component - the box
> itself, the entire RAID assembly including disk controller and disks, and it
> still dies (last night it locked up and could not be rebooted - the RAID
> drive was corrupted and had to be restored from tape).
>
> Thanks.
>
> Lisa Kinoshita
> Process Controls - SFR Rodeo
> (510) 245-4581
>
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