During backup processing, the server cannot copy data to the specified copy or active-data storage pool because not enough space is available in the specified copy or active-data storage pool, or, the access for the copy or active-data storage pool is either unavailable or readonly.
The indicated backup process ends.
Make more space available in the copy or active-data storage pool and reissue the backup command, or reissue the backup command and specify another copy or active-data storage pool with more space.