Alan Brown <[EMAIL PROTECTED]> wrote on 03/12/2008 12:31:42 AM:
> On Tue, 2 Dec 2008, Glen Davison wrote:
>
> > The symptoms vary - sometimes there is an error at some point through
the
> > tape, and sometimes (suspiciously often) it seems to have lost the
bacula
> > label right at the start. These tapes were new, and the rate of these
> > errors is far higher than I can attribute to bad tape manufacture,
etc.
>
> Scsi errors spring to mind.
>
> Are your cables within spec?
> Are your terminators in good condition?
>
> What kind of tapes are you using?
>
> If these are all ok, then suspicion should fall on the tape drive.
>
> > This system has had a history of problems, particularly scsi problems.
>
> What kind of interface card are you using?
>
> AB
Alan, thanks for the reply.
I am pretty confident of cables and terminators. The card is more
suspect, but I think the most likely culprit is the tape library itself -
possibly the firmware on the drives. I've just had a protracted battle
with this library, and a parallel ongoing support call open with HP. It
wasn't pretty. ;(
The tapes are SDLT300/600, library is HP MSL6026. Card is some sort of
aic79xx. (lsmod) I can't remember exact model number - I've changed it a
couple of times.
"Jeff Kalchik" <[EMAIL PROTECTED]> wrote on 03/12/2008 02:15:43 AM:
> > This system has had a history of problems, particularly scsi problems.
>
> Unfortunately, I'd suspect that this is the real source of your
problems.
> Until you have a stable SCSI bus, anything sent down it is suspect. I
> wouldn't even be sure the data got written to tape.
>
> Jeff "who's fighting loader errors on an L500" Kalchik
Jeff, I sure hope you're wrong, but that does make sense. :(
It does mean though that I must have been having SCSI problems for longer
than I realised. Some of these tapes go back many months.
Thanks for responses, guys.
Glen
--
Glen Davison [EMAIL PROTECTED]
SIRCA Pty Ltd Ph (02) 9236 9133
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