Because sequential extended-format data sets span volumes, DFSMShsm migrates a data set only when the volume that contains the first stripe is processed. Migration is skipped for this data set when volumes that contain subsequent stripes are processed.
DFSMShsm expires an sequential extended-format data set only when the first stripe (volume) is being processed, regardless of whether the data mover is DFSMSdss or DFSMShsm. Expiration is skipped when subsequent stripes (volumes) are being processed.
You can command migrate single-stripe or multiple-stripe sequential extended-format data sets.