Veritas Volume Manager 5.0 Migration Guide, HP-UX 11i v3, First Edition, May 2008

Contents
Chapter 1 VxVM and LVM
Introducing Veritas Volume Manager ................................................................ 7
Notable features of VxVM ............................................................................8
VxVM and LVM—conceptual comparison ........................................................10
Coexistence of VxVM and LVM disks ...............................................................12
Chapter 2 Converting LVM to VxVM
Converting unused LVM physical volumes to VxVM disks ...........................16
Removing LVM disk information ..............................................................16
Initializing disks for VxVM use .................................................................17
Converting LVM volume groups to VxVM disk groups ..................................17
Volume group conversion limitations ......................................................18
Conversion process summary ....................................................................20
Conversion steps explained ........................................................................21
Restoring the LVM volume group configuration ............................................28
Rollback to LVM using vxvmconvert ........................................................30
Full LVM restoration ...................................................................................31
Examples ...............................................................................................................32
Example: displaying the vxvmconvert menu ..........................................32
Example: listing disk information .............................................................32
Example: listing LVM volume group information ..................................33
Example: analyzing LVM volume groups .................................................34
Example: converting LVM volume groups to VxVM disk groups .........37
Example: list, listvg, and vxprint outputs of an LVM volume group before
and after conversion ............................................................................41
Example: VxVM to LVM rollback ...............................................................43
General information regarding conversion speed ..........................................44
Non-interactive conversion of volume groups ................................................45
Analysing volume groups for conversion ................................................45
Converting volume groups to disk groups ...............................................46
Converting disk groups back to volume groups ......................................47
Chapter 3 Command differences
LVM and VxVM command equivalents ............................................................50
Comparison of LVM and VxVM tasks ...............................................................56