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Device filenames under aix – HP Ultrium tape drives Q1538-90925 User Manual

Page 18

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IBM (AIX)

18

HP restricted

Once device files have been created, you should confirm that your new tape drive is working

properly.

Chapter 7 on page 27

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.