I am trying to restore two volume groups from a 4mm DDS tape - the volume groups were saved using the command syntax 'savevg -b 512 -e -f /dev/rmt1.1 -i vgname'.
To restore I am using 'restvg -b 512 -f/dev/rmt1.1'. This works, but one of the volume groups takes over 20 hours to restore. This vg is about 8GB of data in lots of small files (approx 340,000 inodes used).
The second vg is about 5GB using about 21,000 inodes, and this only takes half an hour to restore.
Is there an optimum value I can use on the restvg -b parameter that will reduce the time taken to restore the first vg ? Obviously I could find out by trial and error, but at 20+ hours a time this could take quite a while!
To restore I am using 'restvg -b 512 -f/dev/rmt1.1'. This works, but one of the volume groups takes over 20 hours to restore. This vg is about 8GB of data in lots of small files (approx 340,000 inodes used).
The second vg is about 5GB using about 21,000 inodes, and this only takes half an hour to restore.
Is there an optimum value I can use on the restvg -b parameter that will reduce the time taken to restore the first vg ? Obviously I could find out by trial and error, but at 20+ hours a time this could take quite a while!