Transferring dump file to tape?

Kris Kennaway kris at obsecurity.org
Mon May 16 11:38:32 PDT 2005


On Mon, May 16, 2005 at 11:36:18AM -0500, Viren Patel wrote:
> Hello. I am using 'dump' to backup client filesystems to a
> disk file on an NFS mounted partition, e.g.
> 
>    dump -0aLu -f /bk/var-20050516 /var
> 
> Now I'd like to take the backup file (var-200500516) and
> move it to tape (on the NFS server). However I'd like the
> tape to have the data just as if it had been created
> directly by 'dump', e.g.
> 
>    dump -0aLu -f /dev/nsa0 /var
> 
> Any way to do this? I could use rdump/rmt to backup
> directly to the remote tape, but I am doing it this way to
> do fast disk-based backups during night and move to slower
> tapes during day. For normal restores I can use NFS-based
> files but have tapes for single-user-mode type restores.
> Thanks.

You can use dd to write a file to a device (e.g. tape).

Kris
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