VERITAS Volume Manager 3.1 Migration Guide

Converting LVM to VxVM

Converting LVM Volume Groups to VxVM Disk Groups

Chapter 2 37

11. Tailoring your VxVM conﬁguration

vxvmconvert provides a default name for naming the newly formed

VxVM disk group during conversion only as an option. However, you will

be given the choice of choosing your own VxVM disk group name. By

default, vxvmconvert renames the LVM volume group by replacing the

preﬁx vg in the volume group name with the preﬁx dg. For example,

vg08 would become dg08. If there is no vg in the LVM volume group

name, vxvmconvert simply uses the same volume group name for its

disk group.

The disks in the new VxVM disk group are given VxVM disk media

names (see vxintro (1M)) based on this disk group name. If your new

VxVM disk group is dg08, it will have VxVM disks with names like

dg0801, dg0802, etc. The VxVM plexes within the logical volumes will be

dg0801-01, dg0801-02, etc.

If you do not like the default object names generated by the conversion,

use the standard VxVM utilities to rename these objects. See the rename

option in the vxedit (1M) man page for more details on renaming the disk

groups.

NOTE You must only rename objects in the VxVM conﬁguration after you are

fully satisﬁed with that conﬁguration. In particular, you should never

use menu option 3 of vxvmconvert (Roll back) after name changes. If you

have chosen to set up symbolic links to the VxVM volumes as described

in “step “5. Planning for new VxVM logical volume names” avoid

renaming VxVM objects. These symbolic links are made invalid if the

underlying VxVM device node name changes.