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Configuring Optical Disk Drives

Examples of Optical Disk Device Files

Assume the device files for the desired optical disk drive (controller 1, SCSI ID 5) do not

yet exist.

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

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

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

scsi0 Available 00-01 SCSI I/O Controller

2. Check to see if the device files exist for ovpass at SCSI ID 5.

/usr/sbin/lsdev -C -s scsi

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

disk 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

3. Create device files for the optical disk drive on controller 1 at SCSI ID 5 by using the

following command:

mkdev -c disk -t osdisk -s scsi -p scsi0 -w 5,0

4. Display the device files by issuing 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

hdisk2 Available 00-01-00-5,0 Other SCSI Disk Drive

5. Enter the following character device file path to configure the optical disk drive

connected to controller 1 and SCSI ID 5:

/dev/rhdisk2

Chapter 3, IBM AIX 47

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Seagate ST11200N Technical Information Seite 61