All disk groups have a version number associated with them. Each major Veritas Volume Manager (VxVM) release traditionally introduces a disk group version, however, in some cases a new disk group version will not be created for a particular VxVM version.
To support new features, the disk group must be at least the disk group version of the release when the feature was introduced. If you need to import a disk group on a system running an older version of Veritas Volume Manager, you can create a disk group with an earlier disk group version. Read more

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