VxVM Disk Group
- A disk group is a collection of volume manager disks grouped together to hold the data. All the configuration changes made to a disk group are applied to the disks in that disk group only.
- Volume Manager objects cannot span disk groups i.e. all the operations on a particular disk group remains confined to that particular group.
- Disk groups enable high availability as these can be shared by two or more hosts but can be accessed by only one host at a time. In two hosts and a shared storage situation one host can take over the ownership of the disk groups and drives in case other host fails.
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