SMSACSSG—assign SMS storage group
A storage group is a collection of volumes with specific attributes. Storage groups represent physical storage resources. Together with storage classes, storage groups separate the logical requirements of accessing data from the physical requirements of storing data. New data sets can be directed to as many as 15 storage groups, although only 1 storage group is used for the allocation. Unlike data class, management class, and storage class, storage group cannot be specified in JCL.
SMSACSSG can assign a storage group to a data set that does not have a storage group and can override a storage group assignment that was already made by an ACS routine. The four SMSACSxx functions (SMSACSDC, SMSACSMC, SMSACSSG, SMSACSSG) allow non-SMS-managed data sets to be put under DFSMS management without the use of ACS routines.
For more information, see: