Seagate ST11200N Technical Information PDF herunterladen (Seite 59)

Configuring Optical Disk Drives

When adding optical disk drives to a Media Manager configuration, you specify only a

character device path. Optical disk character device files are located in the /dev directory

and have the following format, where ID is the logical identifier assigned to the device by

the system.

/dev/rhdisk

Note To use HP optical disk drives, the system must recognize the optical drives as disk

drives at system boot time. If you are adding HP 1.2 gigabyte or equivalent model

magneto-optical disk drives to an AIX system, the system may not recognize them

as disk drives, and thus cannot use them. See “Setting the HP Optical Drive Type in

Nonvolatile Memory” on page 48 for information on correcting this condition.

Creating Device Files

▼ To check for and create the necessary device files

1. Display which SCSI controllers are physically available on your machine by using the

following lsdev command:

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

This sample output shows that SCSI controller 1 (00-01) has been assigned the

logical identifier scsi0.

scsi0 Available 00-01 SCSI I/O Controller

2. Display the SCSI device files that have already been created by using the following

lsdev command:

/usr/sbin/lsdev -C -s scsi

The following example output shows that two disk drives and one tape drive exist:

◆ hdisk0 is a disk drive at controller 1 (00-01) and SCSI ID 0 (0,0)

◆ hdisk1 is a disk drive at controller 1 (00-01) and SCSI ID 1 (1,0)

◆ rmt0 is a tape drive at controller 1 (00-01) and SCSI ID 3 (3,0)

Chapter 3, IBM AIX 45

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Seagate ST11200N Technical Information Seite 59