You can move all data from a volume in one storage pool to volumes in another storage pool. When you specify a target storage pool that is different than the source storage pool, the server uses the storage hierarchy to move data if more space is required.
You can move data from random-access storage pools to sequential-access storage pools. For example, if you have a damaged disk volume and you have a limited amount of disk storage space, you could move all files from the disk volume to a tape storage pool. Moving files from a disk volume to a sequential storage pool may require many volume mount operations if the target storage pool is collocated. Ensure that you have sufficient personnel and media to move files from disk to sequential storage.
When a data move from a shred pool is complete, the original data is shredded. However, if the destination is not another shred pool, you must set the SHREDTONOSHRED parameter to YES to force the movement to occur. If this value is not specified, the server issues an error message and does not allow the data to be moved. See Securing sensitive client data for more information about shredding.