Moving volumes between pools

You might find it necessary to move volumes from one pool to another. For example, you might move volumes to eliminate an old pool, to consolidate space as your installation's removable media library grows, or to change a volume's external label.

If the pools between which you are moving volumes reside in different libraries, you might need to move volumes between libraries at the same time you redefine a new shelf location for the volume.

To view the pool IDs defined for your installation, type CONTROL VLPOOLS from the command or option line of any panel. In the TSO environment, use the LISTCONTROL VLPOOL subcommand.

Moving between pools is not supported in automated tape libraries.

To change the shelf location for a volume being moved between pools, do one of the following:

Enter a new pool ID in the Pool field, or a new rack number in the Rack field of the Change Volume Details panel, and press ENTER.
or
Issue either:
```
RMM CHANGEVOLUME
volser POOL(pool_ID)
```
or
```
RMM CHANGEVOLUMEvolserRACK(rack_number)
```
where:
- pool ID is one-to-five characters that is followed by an * and defined by your installation.
- rack_number is the rack number of the shelf location where you are moving the volume. It can be a full rack number of one-to-six alphanumeric characters, or a generic rack number of one-to-five alphanumeric characters that is followed by an asterisk. The rack number you use must correspond to an empty shelf location already defined to DFSMSrmm, and must match the media name of the volume you are moving.

After you redefine pool information for a volume, replace the volume's external label with a new label identifying the volume's new shelf location by a rack number.