In the last episode (Feb 07), Markus Stumpf said:
> We use amanda and dump for backups. Some hosts have rather busy disks
> even during non prime time hours when backup is run.
>
> >From time to time amanda reports dump(8) errors like the following:
>
> ? DUMP: read error from /dev/rda4s1e: Invalid argument: [block -410921522]:
>count=3072
> ? DUMP: DUMP: read error from /dev/rda4s1e: Invalid argument: [sector
>-410921522]: count=512
> ? DUMP: read error from /dev/rda4s1e: Invalid argument: [block -410921532]:
>count=5120
> ? DUMP: read error from /dev/rda4s1e: Invalid argument: [block -1001057530]:
>count=1024
> [ ... ]
Dump should ideally be run on an unmounted filesystem. The next best
is to create a snapshot ( /usr/src/sys/ufs/ffs/README.snapshot ) and
dump that.
--
Dan Nelson
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