VERITAS Storage Foundation 4.1 Release Notes

VERITAS Storage Foundation Release Notes
Software Issues
39
Upgrading Disk Group Versions
All disk groups have a version number associated with them. Each VxVM release supports a
specific set of disk group versions and can import and perform tasks on disk groups with those
versions. Some new features and tasks work only on disk groups with the current disk group
version, so you need to upgrade existing disk groups before you can perform the tasks. The
following table summarizes the disk group versions that correspond to each VxVM release from
2.0 onward:
You can use the following command to find out the version number of a disk group:
# vxdg list disk_group_name
You can also determine the disk group version by using the vxprint(1M) command with the -l
format option.
To upgrade a disk group, use the following command:
# vxdg [-T version] upgrade disk_group_name
Unless a disk group version is specified, this command upgrades the disk group to the highest
version supported by the VxVM version on your system.
For shared disk groups, the latest disk group version is only supported by the latest cluster protocol
version. To see the current cluster protocol version, type:
# vxdctl support
To upgrade the protocol version for the entire cluster, enter the following command on the master
node:
# vxdctl upgrade
See the “Administering Cluster Functionality” chapter of the VERITAS Volume Manager
Administrators Guide for more information on changing the cluster protocol version.
VxVM Release Cluster Protocol
Versions
Disk Group Version Supported Disk Group
Versions
3.0 n/a 60 60
3.1 n/a 60 60
3.2 30 60 60
3.5 40 90 60, 90
4.1 60 120 60, 90, 120