VERITAS Volume Manager 5.0 Migration Guide (September 2006)

Chapter

Converting LVM to VxVM

This chapter explains how to convert your LVM configuration to a VxVM configuration

and presents the following main topics:

■ Converting unused LVM physical volumes to VxVM disks

■ Converting LVM volume groups to VxVM disk groups

■ Restoring the LVM volume group configuration

■ Examples

The basic tools for conversion are the VxVM commands,

vxvmconvert and

vxdiskadm,

and the LVM administrative utilities such as pvremove and vgcfgbackup.

The discussion here details how to use these tools and gives some insights into how these

tools work.

The disks on your system managed by LVM can be of two types: LVM disks in volume

groups, and unused disks.

The former are disks that contain logical volumes and volume groups. Unused disks

contain no user data, and are not used by any volume group, but have LVM disk headers

written by pvcreate. Conversion is done differently for these two types of disks.

For unused LVM disks you can use a combination of

pvremove and vxdiskadm. For

LVM disks in volume groups, the primary tool for conversion is the

vxvmconvert

command. For information on

vxdiskadm, see the man page vxdiskadm(1M) or the

Veritas Volume Manager Administrator’s Guide.