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

Technical Support ............................................................................................... 4
Chapter 1 VxVM and LVM ...................................................................... 9
About VxVM and LVM .................................................................... 9
Introducing Veritas Volume Manager ................................................ 9
Notable features of VxVM ....................................................... 10
VxVM and LVM—conceptual comparison .......................................... 12
Coexistence of VxVM and LVM disks ............................................... 17
Chapter 2 Converting LVM to VxVM ................................................... 19
About LVM to VxVM conversion ..................................................... 19
Converting unused LVM physical volumes to VxVM disks .................... 20
Removing LVM disk information ............................................... 20
Initializing disks for VxVM use ................................................. 21
Converting LVM volume groups to VxVM disk groups ......................... 21
Volume group conversion limitations ........................................ 22
Conversion process summary ................................................... 24
Identifying LVM disks and volume groups for conversion .............. 25
Analyzing an LVM volume group to see if conversion is
possible .......................................................................... 26
Taking actions to make conversion possible if analysis fails ........... 26
Backing up your LVM configuration and user data ....................... 27
Planning for new VxVM logical volume names ............................ 29
Stopping application access to volumes in the volume group to
be converted ................................................................... 30
Converting a volume group ...................................................... 31
Taking actions if conversion fails .............................................. 32
Implementing changes for new VxVM logical volume
names ............................................................................ 32
Restarting applications on the new VxVM volumes ...................... 32
Tailoring your VxVM configuration ........................................... 33
Restoring the LVM volume group configuration ................................. 33
Rollback to LVM using vxvmconvert .......................................... 35
Full LVM restoration .............................................................. 36
Examples .................................................................................... 37
Contents