For a whole-system backup, I'd suggest you read the man page on 'flar
', and maybe 'ufsdump
' (depending on your filesystem type). As for the other operating systems, that's going to be tricky.
In order to do a file-level copy of data, the OS (Solaris) needs to be able to mount and read the filesystems in question. This isn't always possible.
However, you could do 'full' backups of each external disk in the Sun 711 with 'dd
', however that's going to copy-over all the blocks.
You might need a shutdown script in each of those Operating Systems to zero-out the free-space upon shutdown.
Something like this;
/bin/cat /dev/zero > /path/to/zero.file ; /bin/rm -f /path/to/zero.file