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Configuring Tape Drives

You can display the newly created logical identifier for the device by using the lsdev

command.

/usr/sbin/lsdev -C -s scsi

hdisk0 Available 00-01-00-0,0 400 MB SCSI Disk Drive

hdisk1 Available 00-01-00-1,0 400 MB SCSI Disk Drive

rmt0 Available 00-01-00-3,0 Other SCSI Tape Drive

rmt1 Available 00-01-00-5,0 Other SCSI Tape Drive

ovpass0 Available 00-01-6,0 VERITAS Media Changer

The rmt1 device file has been created.

4. If the device files do not exist on a FCP controller, use the following command to

create them, where device is the controller number from step 1 on page 40. For

example, fscsi0.

/usr/sbin/cfgmgr -l

device

5. Ensure that the device being used is configured for variable-mode and extended file

marks as required by Media Manager by using the chdev command as follows,

where Dev is the logical identifier for the drive (for example: rmt0 or rmt1).

/usr/sbin/chdev -l

Dev

-a block_size=0

/usr/sbin/chdev -l

Dev

-a extfm=yes

No Rewind Device File Example

Assume the device files for the desired SCSI 8-mm tape drive (controller 1, SCSI ID 5) do

not exist.

1. Determine the logical identifier for the SCSI controller as follows:

/usr/sbin/lsdev -C -c adapter | grep SCSI

The following output shows that scsi0 is the logical name for SCSI controller 1:

scsi0 Available 00-01 SCSI I/O Controller

2. Check if the device files exist for any device at SCSI ID 5.

/usr/sbin/lsdev -C -s scsi

The following output shows that some device files exist for tape and disk, but not for

the 8-mm tape drive at controller 1 (scsi0) and SCSI ID 5 (5,0):

hdisk0 Available 00-01-00-0,0 400 MB SCSI Disk Drive

hdisk1 Available 00-01-00-1,0 400 MB SCSI Disk Drive

rmt0 Available 00-01-00-3,0 Other SCSI Tape Drive

42 NetBackup Media Manager Device Configuration Guide for UNIX, Windows, and Linux

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Seagate ST11200N Technical Information Seite 56