Veritas Volume Manager 5.0.1 Administrator's Guide, HP-UX 11i v3, First Edition, November 2009

You can change the disk-naming scheme if required.

See “Changing the disk-naming scheme” on page 98.

Operating system-based naming

Under operating system-based naming, all disk devices except fabric mode disks

are displayed either using the legacy c#t#d# format or the persistent disk##

format. By default, VxVM commands display the names of these devices in the

legacy format as these correspond to the names of the metanodes that are created

by DMP.

The syntax of a legacy device name is c#t#d#, where c# represents a controller

on a host bus adapter, t# is the target controller ID, and d# identifies a disk on

the target controller.

Fabric mode disk devices are named as follows:

■ Disks in supported disk arrays are named using the enclosure name_# format.

For example, disks in the supported disk array name FirstFloor are named

FirstFloor_0, FirstFloor_1, FirstFloor_2 and so on. (You can use the

vxdmpadm command to administer enclosure names.)

■ Disks in the DISKS category (JBOD disks) are named using the Disk_# format.

■ Disks in the OTHER_DISKS category (disks that are not multipathed by DMP)

are named using the fabric_# format.

OS-based names can be made persistent, so that they do not change after reboot.

However, by default, OS-based names are regenerated if the system configuration

changes the device name as recognized by the operating system.

Enclosure-based naming

Enclosure-based naming operates as follows:

■ All fabric or non-fabric disks in supported disk arrays are named using the

enclosure_name_# format. For example, disks in the supported disk array,

enggdept are named enggdept_0, enggdept_1, enggdept_2 and so on.

You can use the vxdmpadm command to administer enclosure names.

See “Renaming an enclosure” on page 184.

See the vxdmpadm(1M) manual page.

■ Disks in the DISKS category (JBOD disks) are named using the Disk_# format.

■ Disks in the OTHER_DISKS category (disks that are not multipathed by DMP)

are named using the c#t#d# format or the disk## format.

Administering disks

Disk devices