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

Table 4-2
Features supported by disk group versions (continued)
Previous version features
supported
New features supportedDisk group
version
20, 30, 40■ SRVM (now known as Veritas
Volume Replicator or VVR)
50
20, 30■ Hot-Relocation40
20■ VxSmartSync Recovery
Accelerator
30
■ Dirty Region Logging (DRL)
■ Disk Group Configuration Copy
Limiting
■ Mirrored Volumes Logging
■ New-Style Stripes
■ RAID-5 Volumes
■ Recovery Checkpointing
20
To list the version of a disk group, use this command:
# vxdg list dgname
You can also determine the disk group version by using the vxprint command
with the -l format option.
To upgrade a disk group to the highest version supported by the release of VxVM
that is currently running, use this command:
# vxdg upgrade dgname
By default, VxVM creates a disk group of the highest version supported by the
release. For example, Veritas Volume Manager 5.0 creates disk groups with version
140.
It may sometimes be necessary to create a disk group for an older version. The
default disk group version for a disk group created on a system running Veritas
Volume Manager 5.0 is 140. Such a disk group cannot be imported on a system
running Veritas Volume Manager 4.1, as that release only supports up to version
120. Therefore, to create a disk group on a system running Veritas Volume Manager
5.0 that can be imported by a system running Veritas Volume Manager 4.1, the
disk group must be created with a version of 120 or less.
To create a disk group with a previous version, specify the -T version option to
the vxdg init command.
245Creating and administering disk groups
Upgrading a disk group