Attributes of primary volumes

When you use the ADDVOL command to add a primary volume to DFSMShsm, you assign attributes to that primary volume. You can choose the following primary volume attributes:

The use of the first two primary volume attributes is described in this topic. The use of the last three attributes is described in Availability management of non-SMS-managed storage.

Each DFSMShsm host can decide whether primary volumes are processed by automatic space management, automatic backup, or automatic dump. However, if an automatic process controls a primary volume in any DFSMShsm host, DFSMShsm considers the volume to be automatically controlled for that process. For example, assume you specify the following in DFSMShsm hosts 1 and 2:
ADDVOL VOL006 PRIMARY(AUTOMIGRATION) UNIT(3390)
Then you specify the following in DFSMShsm host 3:
ADDVOL VOL006 PRIMARY(NOAUTOMIGRATION) UNIT(3390)

DFSMShsm considers VOL006 to be controlled by automatic space management.