Re: multiple session using tar on LTO tape Wonderinguy wrote:
> My sysadmin says, I cannot have multiple session of tar on a LTO tape.
> Is this true ?
> If the answer is yes, how can we accomplish that without buying a 3rd
> party software. Basically, I want to tar a 20 GB file to a 200GB tape
> today and tar another 20GB tommorrow to the same tape (add i mean) and
> so on.
Isn't your LTO drive a normal rmt device? Nearly all types of tapes supports
multiple files on one tape.
You may try (if you drive isn't rmt0 use your device name):
1. day:
tctl -f /dev/rmt0 rewind
tar cvf /dev/rmt0 filenametosave
2. day:
tctl -f /dev/rmt0 rewind
tctl -f /dev/rmt0.1 fsf 1
tar cvf /dev/rmt0 filenametosave
3. day:
tctl -f /dev/rmt0 rewind
tctl -f /dev/rmt0.1 fsf 2
tar cvf /dev/rmt0 filenametosave
Lothar |