Restoring files from mksysb backup

Restoring the /image.data from the mksysb tape backup:.

 /image.data is stored on the 2nd block of the tape.

1) Change the block size of the tape drive to 512.
# chdev -l rmt0 -a block_size=512

2) Check to make sure the block size of the tape drive has been changed:
# tctl -f /dev/rmt0 status

rmt0 Available 10-60-00-1,0 4.0 GB 4mm Tape Drive
attribute value description user_settable
block_size 512 BLOCK size (0=variable length) True
compress yes Use data COMPRESSION True
mode yes Use DEVICE BUFFERS during writes True
ret_error no RETURN error on tape change or reset True

3) Change the location where you would like to restore the /image.data
# restore -s2 -xqvf /dev/rmt0.1 ./image.data.

Restoring the /image.data from the mksysb file backup:
Change the location to restore the backup.
# restore -xqvf <location of mksysb backup> ./image.data