VERITAS Volume Manager 3.5 Administrator's Guide (September 2004)

Chapter 2 76

Changing the Disk-Naming Scheme

You can either use enclosure-based naming for disks or the traditional

naming scheme (such as c#t#d#). Select menu item 20 from the

vxdiskadm main menu to change the disk-naming scheme that you want

VxVM to use. Selecting this option displays the following screen:

Change the disk naming scheme

Menu: VolumeManager/Disk/NamingScheme

Use this screen to change the disk naming scheme (from the c#t#d# format to the

enclosure based format and vice versa).

NOTE: This operation will result in vxconfigd being stopped and restarted.

Do you want to change the naming scheme ? [y,n,q,?] (default: n)

Enter y to change the naming scheme. This restarts the vxconﬁg daemon

to bring the new disk naming scheme into effect.

Using vxprint with Enclosure-Based Disk Names

If you enable enclosure-based naming, and use the vxprint command to

display the structure of a volume, it shows enclosure-based disk device

names (disk access names) rather than c#t#d names. To discover the

c#t#d names that are associated with a given enclosure-based disk name,

use either of the following commands:

# vxdisk list enclosure-based_name

# vxdmpadm getsubpaths dmpnodename=enlcosure-based_name

For example, to ﬁnd the physical device that is associated with disk

ENC0_21, the appropriate commands would be:

# vxdisk list ENC0_21

# vxdmpadm getsubpaths dmpnodename=ENC0_21

To obtain the full pathname for the block and character disk device from

these commands, append the displayed device name to .