Request storage location management processing when you are using vital record specifications to identify data sets and volumes to be moved between locations or using RMM TSO CHANGEVOLUME subcommands to move volumes between system-managed libraries and between storage locations. Manual moves using the RMM CHANGEVOLUME subcommand could be used to support dynamic shelf-management. Vital record processing sets the required location where a volume should be stored. Storage location management sets the destination for the volume and optionally assigns the exact shelf location to be used for the volume while it is in the storage location.