Storage Group

A Storage group represents the physical storage that SMS manages. This storage can be collections of DASD volumes, volumes in tape libraries or in optical libraries, or virtual input/output (VIO) storage. The storage administrator groups the volumes to meet a specific service or business strategy.

The storage administrator uses the storage group ACS routine to assign a new data set or object to a storage group. Table 1 shows the types of attributes that you can associate with a storage group.

Table 1. types of storage group attributes
Pool storage group attributes (allocation, backup, dump, migrate, extend, overflow, volume, status) VIO storage group attributes (size, unit, status) Dummy storage group attributes Object storage group attributes (library, cycle, volume) Object backup storage group attributes (library, cycle, volume) Tape storage group attributes (library, status) Copy pool backup storage group attributes

Related reading: For more information about defining storage groups, see the z/OS DFSMSdfp Storage Administration and z/OS DFSMShsm Storage Administration.