Are you SURE it's not a cabling issue? I've had 2940U2w cards act strangely
both under Linux and NT when there were problems with cables or terminators.
I've gotten into the habit of using SCA drive cages and keeping the LVD
cable lengths to a minimum (just between the cage and the controller).
Also, make sure you have active (not passive) termination.
Cheers,
Chris
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Tuesday, April 18, 2000 12:31 PM
Subject: adaptec 2940u2w hangups
> Hi All!
>
> Lately, we have been experiencing some serious problems with our Linux
servers
> using RAID0 on Adaptec 2940U2W. The machines, which are under quite some
load,
> suddenly dies and must be cold-restarted. When they get back online again,
> there's is no sign of anything going awry in any logfile. The just plunge
into
> deep-freeze, zero-Kelvin mode. *argh*
>
> Currently, the machines are running Linux 2.2.14 with latest raid-patches
> (Mingo's raid-2.2.14-B1-patch), but we've seen the problem under 2.2.13 as
> well.
>
> As I said, there's nothing in the log files that would indicate what's
wrong.
> Installing the software watchdog kernel module/watchdogd didn't help
either.
>
> The situation is getting somewhat embarrassing, as we've been pushing
pretty
> hard towards Linux. We're considering moving all servers to non-RAID
> configurations, but we'd really prefer RAID0.
>
> I've also noticed a few other postings about problems/hangups with
2940/AIC79xx
> on Linux RAID, so it seems we're not alone with this problem.
>
> Does anyone have any kind of information as to the status of this. Is the
> bug(s) identified? Is there a solution (other than stop using RAID)?
>
>
> Hardware setup: RH Linux 6.1/2.2.14/raid-2.2.14-B1 on dual PIII
motherboards
> (ASUS P2B-DS) and U2W SCSI IBM disks, 512+ MB RAM.
>
>
> /m
>
>
>
>
>
