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Date:      Sat, 6 Dec 1997 14:27:06 -0600
From:      Tim Tsai <tim@futuresouth.com>
To:        Travis Mikalson <bofh@terranova.net>
Cc:        "Bryn Wm. Moslow" <bryn@nwlink.com>, freebsd-isp@FreeBSD.ORG, jayk@nwlink.com
Subject:   Re: Adaptec 2940/Seagate Failures
Message-ID:  <19971206142706.27627@futuresouth.com>
In-Reply-To: <3488A507.65CB@terranova.net>; from Travis Mikalson on Fri, Dec 05, 1997 at 08:06:15PM -0500
References:  <Pine.GSO.3.95.971205120024.28222B-100000@utah> <3488A507.65CB@terranova.net>

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> I just had it happen a couple days ago as a matter of fact.. it wasn't
> fatal at all, just a hiccup; I was working on the system at the time.
> 
> sd1(ahc0:2:0): SCB 0x6 - timed out in command phase, SCSISIGI == 0x84
> SEQADDR = 0x4e SCSISEQ = 0x12 SSTAT0 = 0x7 SSTAT1 = 0x2
> Ordered Tag queued
> sd1(ahc0:2:0): SCB 0x7 timedout while recovery in progress
> sd0(ahc0:0:0): SCB 0x0 timedout while recovery in progress
> sd1(ahc0:2:0): SCB 0x2 timedout while recovery in progress
> Ordered Tag sent
> sd0(ahc0:0:0): SCB 0x3 timedout while recovery in progress
> sd0(ahc0:0:0): SCB 0x1 timedout while recovery in progress
> sd1(ahc0:2:0): SCB 0x6 - timed out in command phase, SCSISIGI == 0x84
> SEQADDR = 0x4e SCSISEQ = 0x12 SSTAT0 = 0x7 SSTAT1 = 0x2
> sd1(ahc0:2:0): abort message in message buffer
> sd1(ahc0:2:0): SCB 6 - Abort Tag Completed.
> sd1(ahc0:2:0): no longer in timeout
> sd1(ahc0:2:0): SCB 0x7 - timed out while idle, LASTPHASE == 0x1,
> SCSISIGI == 0x0
> SEQADDR = 0x6 SCSISEQ = 0x12 SSTAT0 = 0x5 SSTAT1 = 0xa
> Ordered Tag queued
> sd1(ahc0:2:0): SCB 0x7 - timed out while idle, LASTPHASE == 0x1,
> SCSISIGI == 0x0
> SEQADDR = 0x7 SCSISEQ = 0x12 SSTAT0 = 0x5 SSTAT1 = 0xa
> sd1(ahc0:2:0): Queueing an Abort SCB
> sd1(ahc0:2:0): Abort Message Sent
> sd1(ahc0:2:0): SCB 7 - Abort Tag Completed.
> sd1(ahc0:2:0): no longer in timeout
> Ordered Tag sent
> 
> There did happen to be a higher than normal load on the system at the
> time.
> I've changed the cable thrice and the heat seems well within acceptable
> parameters.

  Our experience is that these always develop into more serious problems.
Run find on the file system and make sure you don't have any oddball
files (I look for character/block special files and files without valid
user id or group id).

  Tim



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