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Configuring Optical Disk Drives

Adding Logical Unit Number Entries

If the devices you are adding utilize the logical unit number (LUN) concept, (such as

many fibre channel SAN configurations) you may also have to add entries to the

following files:

◆ st.conf

◆ sg.conf

◆ sg.links

See the “Configuring SG and ST Drivers” on page 9 for information on sg.build, a

script that is used to create these files, and examples of the proper syntax to use.

Configuring Optical Disk Drives

Read the following topics if you plan to use optical disk drives.

Configuring HP Optical Disk Drives

To use standalone HP optical-disk drives, the sg driver must be installed (see

“Understanding the SCSI Passthru Drivers” on page 7). The system must also be

configured to 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, the

system may not recognize these as disk drives and thus cannot use them. See “Setting the

HP Optical Drive Type in Nonvolatile Memory” on page 25 for more information.

The Solaris 8 6/00 release introduced volume manager (vold), which attempts to manage

all removable media devices. If vold manages an optical disk, NetBackup cannot access

it.

Edit /etc/vold.conf and comment out the following line. Optical disks will then work

as they did before this Solaris 8 change.

#use rmdisk drive /dev/rdsk/c*s2 dev_rmdisk.so rmdisk%d

Creating Device Files

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

following device paths:

◆ Volume header disk device path (partition 0).

◆ Character device path (partition 6).

Chapter 2, Sun Solaris 23

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Seagate ST11200N Technical Information Seite 37