I would like to know, what commands and steps should i take with my
tape drive (Scsi connectioin) before running the mksysb command for
backup.
And after finishing the backup, how do i remove the tape? (Should i do
that??)


First I would run "tctl -f /dev/rmt0 status" to see if your tape drive
is functional.

Then I would run "tctl -f /dev/rmt0 erase" to make sure you have a
clean tape for a mksysb.

Then run "tctl -f /dev/rmt0 rewind" to make sure the tape has rewound.

Then try "smit mksysb" and see what problems you might have.