From: Hambleton, John S. (jhamblet@NMU.EDU)
Date: Thu Dec 18 2003 - 11:30:33 EST
At 04:45 PM 12/18/2003 +0100, you wrote:
>Hm.
>The idea of an allocation map fits, except neither the backup nor
>the restore command makes any explicit use of one! I can't find
>anything for that particular message ID, either.
>
>Did you continue with the restore? I don't see how that can do
>any harm, provided that you check the restored data afterwards.
Aye, we did continue anyway, Simon. I remembered that I have
a job that reads the contents of the tape after a backup is made.
We used that list to determine that yes, all our files were there after
the restore. So "hole in the map", although disconcerting, appears
to have been benign.
Thanks again for the reply, Simon!
John H
>Simon Green
>Altria ITSC Europe Ltd
>
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> > -----Original Message-----
> > From: Hambleton, John S. [mailto:jhamblet@NMU.EDU]
> > Sent: 18 December 2003 14:02
> > To: aix-l@Princeton.EDU
> > Subject: Re: Restore command error--help
> >
> >
> > At 12:22 PM 12/18/2003 +0100, you wrote:
> > >It's not something I'm at all familiar with but I would
> > >hazard a guess that it's talking about a physical partition
> > >map, created when the data was backed up. Following the
> > >disk crash, you're using a different disk, so the map is no
> > >longer valid.
> > >
> > >What sort of backup was it?
> > >What's the restore command you're using?
> >
> > The backup command is:
> > backup -0 -u -b 200 -f /dev/rmt1 /m1
> > we do a full, level 0 backup of our application
> > file system every night
> >
> > and the restore command is:
> > restore -b 200 -rvqf /dev/rmt1
> >
> > The odd thing is that I have replaced hard drives
> > before and restored from backup in the same
> > manner, with no errors ever being issued by "restore".
> > So, seeing "hole in the map" was disconcerting.
> >
> > Thanks for the reply, Simon!
> > John H
> >
+ John S. "Dilbert" Hambleton
+ Olson Library
+ Northern Michigan University
+ Marquette Michigan 49855
+
+ Phone: 906-227-2741
+ E-Mail: JHAMBLET@NMU.EDU
+
+ Ab alio expectes, alteri quod feceris.
+
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