Re: question about dump

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From
Guido van Rooij <guido@gvr.win.tue.nl>
Date
27 Mar 1995 11:31:24
Subject
Re: question about dump
Message-ID
199503271722.TAA04576@gvr.win.tue.nl


[ Hide this part ]
Bob Willcox wrote:
>
> Guido van Rooij wrote:
> >
> > What happens when I do a level 0 dump on a system that is not in single
> > user mode? More specifically: if files/directories get deleted after
> > dump has made ist dump table?
>
> This is a good question. I do this all the time, but don't really understand
> the consequences of doing so. (I find it too painful to take my system down
> to single user mode for the appx. 6 hrs it takes to do the full dump :-()

The reason I am asking is becasue we get complaints from dump all the time,
like:

DUMP: read error from /dev/rsd1h: Invalid argument: [block -1444115938]: count=8192
DUMP: bread: lseek2 fails!
DUMP: read error from /dev/rsd1h: Invalid argument: [sector -1444115938]: count=512
...]
bread: lseek fails
DUMP: DUMP: DUMP: bread: lseek fails
read error from /dev/rsd1h: Invalid argument: [sector -126001564]: count=512
bread: lseek fails

and this repeated all the time.

We also see empty messages from the scsi subsystem around the backup time.
That might also explain some things:

Mar 27 07:53:26 iaehv kernel: sd1(ncr0:1:0):
Mar 27 07:53:27 iaehv kernel: sd1(ncr0:1:0): sd1(ncr0:1:0): sd1(ncr0:1:0): sd1(ncr0:1:0): sd1(ncr0:1:0):
Mar 27 07:56:43 iaehv kernel: sd0(ncr0:0:0):

-Guido


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