The following storage management facilities are needed to use BWO:
For more information about these facilities see the following sections.
SMS is the approach to DASD storage management in which:
This is sometimes referred to as DFSMS and complements functions of MVS/DFP and other individual products of the Data Facility product family. For more details about SMS, see the following publications:
This describes storage administrator applications.
This gives an overview of MVS/DFP and its requirements and describes concepts of SMS-managed storage.
If you use DFHSMS to manage your VSAM data sets, you should consider carefully the period after which your CICS VSAM data sets are migrated to primary or secondary storage. If a migrated data set has to be recalled for CICS, it can take several minutes from primary storage, or longer from secondary storage. While the recall is taking place, the user is locked out, and no other opens or closes on that data set can be performed until the data set has been recalled.
If a migrated data set has to be recalled, CICS issues message DFHFC0989 to the system console, to notify the user that a recall is taking place, and to indicate whether it is from primary or secondary storage.
DFHSM is an IBM-licensed program to manage volumes and data sets. For more details about DFHSM, see the:
This discusses the main features, options, and potential benefits of DFHSM, and addresses people who want to know what the DFHSM program can do for them.
DFDSS is an IBM-licensed program used to copy, move, dump, and restore data sets and volumes. For more details about DFDSS, see the:
This introduces DFDSS and helps you evaluate its use.