> -----Original Message-----
> From: Jeff Hill [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, April 18, 2000 10:40 AM
> To: [EMAIL PROTECTED]
> Cc: [EMAIL PROTECTED]
> Subject: Re: adaptec 2940u2w hangups
>
> You're problems occur only with RAID and the 2940U2W?
>
> I was told it should be a SCSI problem, not a RAID problem. So, I quit
> trying to debug RAID issues and went on to SCSI
> possibilities. Maybe the
> guru was wrong?
>
> My latest attempt _may_ bear some fruit. I tried lowering the
> speed from
> 80Mb to 40Mb through the controller bios (thanks to C Polisher for the
> suggestion). It's hard for me to catch the hangs, but so far this
> morning, it _appears_ to have stopped (I've thought I found
> the problem
> before). Of course, it's a pretty rotten solution to have to
> go to half
> speed. Better not to have any RAID.
WOAH! If cutting the speed down fixes things, try getting some new, better
cables, and a new terminator (and a new backplane if you're using one).
That's almost certainly a SCSI hardware problem, and not something in the
SCSI drivers or the RAID code. It may be that the problems "go away"
without RAID because the SCSI bus isn't getting the same type of use as it
would be with RAID.
Greg
[snip]
