Dumping 2 or more filesystems onto 1 tape

[CCTR114 at canterbury.ac.nz]

In article <9620 at brazos.Rice.edu>, giguere at csg.UWaterloo.CA (Eric Giguere) writes:
> We have an Exabyte 8mm tape drive hooked up to our Sun 3/60 running 4.0.
> This tape drive lets you use the 8mm video tapes for backups -- 2
> gigabytes per tape.  Our largest filesystem is currently 500MB so I want
> to put two or more filesystems on one tape.  Typing
> 
> 	  dump 0uncsf 50000 /dev/nrst9 /dev/sd0a
> 	  dump 0uncsf 50000 /dev/nrst9 /dev/sd0h
> 
> will copy two filesystems OK but I can only get restore to read the first
> one on the tape.  The "s" option doesn't seem to skip like I want it to.
> So what am I doing wrong?

I use a dump like the following as a cron job Monday-Thursday

/etc/dump 0fubsd /dev/nrst1 50 6000 54000 /dev/rid000a
/etc/dump 5fubsd /dev/nrst1 50 6000 54000 /dev/rid000e
/etc/dump 5fubsd /dev/nrst1 50 6000 54000 /dev/rid000f
/etc/dump 5fubsd /dev/nrst1 50 6000 54000 /dev/rid000g
/etc/dump 5fubsd /dev/nrst1 50 6000 54000 /dev/rid000h
/etc/dump 5fubsd /dev/nrst1 50 6000 54000 /dev/rid001e

If I to restore something, usually off /dev/rid000h which is our /home
partition, I use the restore as follows.

restore ibfs 50 /dev/nrst1 5

Hope that helps.

   Bill Rea         w.rea at canterbury.ac.nz