HP Ultrium Configuration Manual page 22

Filename
/dev/rmtn.4
/dev/rmtn.5
/dev/rmtn.6
/dev/rmtn.7
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.
Rewind on Close
Retension on Open Retensioning consists of winding to EOT (End of Tape) and then rewinding to
Compression
22 IBM (AIX)
Rewind on Close Retension on Open
Yes
No
Yes
No
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.
BOT, in order to reduce errors. If this option is selected, the tape is positioned
at BOT as part of the open process.
Compression can be disabled or enabled.
Compression
No disabled
No disabled
Yes disabled
Yes disabled