Volume Sets

The VERITAS Volume Manager exports a feature called volume sets. Unlike the traditional Volume Manager volume, which can be used for raw I/O access or to contain a file system, a volume set is a container for multiple different volumes. Each volume can have its own geometry.

The Volume Manager vxvset command is used to create and manage volume sets. For example, the following command creates a new volume set from an existing volume named vol1:

The following commands create two new volumes and add them to the volume set:

The following command lists the component volumes of the previously created volume set:

When a volume set is created, the volumes contained by the volume set are removed from the namespace and are instead accessed through the volume set name, as shown by the output of the ls command:

However, when a volume is added to the volume set, it is no longer visible in the namespace, as shown in the following example:

Volume sets cannot be empty, so when the last entry is removed, the volume set itself is removed.