HP Ultrium Tape Drive - Manual (Page 22)

IBM (AIX) 22
3. Select from the window: “
change/show characteristics of a tape drive
”
4. From the pop-up window, select “
ost
” or “
Other SCSI tape drive
” as the tape drive you
wish to change. Do not choose “
4mm2gb
”.
5. Change the block size field to 0, and click on the “
DO
” button or press [Enter] to apply the
change.
HP Ultrium drives will work with
tar
,
cpio
,
backup
,
restore
and
dd
. For systems other than the
43P, the drive is also boot-capable, provided a boot tape is generated using
mkszfile
and
mksysb
.
Once the device files have been created, you should confirm that your new tape drive is
working properly. Chapter 7, “Verifying the Installation” provides instructions on backing up
and restoring a sample file to test your installation.
Device Filenames under AIX
Use device filenames as listed below for the combination of Rewind on Close, Retension on
Open, and Compression that you want:
The
n
in the filename is the instance number assigned to the drive by the operating system,
where 0 is the first device, 1 is the second and so on.
Filename Rewind on Close Retension on Open Compression
/dev/rmtn
Yes No enabled
/dev/rmtn.1
No No enabled
/dev/rmtn.2
Yes Yes enabled
/dev/rmtn.3
No Yes enabled
/dev/rmtn.4
Yes No disabled
/dev/rmtn.5
No No disabled
/dev/rmtn.6
Yes Yes disabled
/dev/rmtn.7
No Yes disabled
Rewind on Close Normally, the drive repositions the tape to BOT (Beginning of Tape) when
the device file is closed. Using the no rewind option is useful when creating
and reading tapes that contain multiple files.
Retension on Open Retensioning consists of winding to EOT (End of Tape) and then rewinding
to BOT, in order to reduce errors. If this option is selected, the tape is
positioned at BOT as part of the open process.
Compression Compression can be disabled or enabled.