I am running 4 netware 5.1 sp8 servers and using Arcserve V9.0 to do
the backups. The backups are run individually, NDS, then the SYS vol then
VOL1, these are backed up using DDS4 tapes and at present my backup
requires 4 of these for completion. No errors are reported during the
backup procedure.
The problem I am having is when I attempt a Restore, I am unable to
restore from the tape. The errors are "unable to read volume label from
tape" and "invalid session signature". I have looked up the error codes on
the CA website and checked the fixes, and some of the error codes dont
seem to exist on the CA website.

If anyone could provide some assistance with this problem it would be
greatly appreciated.