Enhances PDSFASTs PDS and DASD management features with the archiving of unused members, automatic space reuse, the control of access to selected members and data sets, the recording of accesses and updates to selected members in SMF, and the automatic updating of LLA.
DASD SPACE SAVINGS

Installations concerned about the rapidly increasing demands on DASD space or want to avoid the excessive overhead associated with PDSEs will appreciate the immediate and ongoing savings that FMO provides. Archiving reduces the size of PDSs and saves disk space. The benefits of such control are many.

For example, automatically reusing wasted space in a PDS when a member is changed or added allows the PDS to grow in size more slowly, reduces the need for full compresses, and simplifies the management of PDSs that are in use for long periods of time and unavailable for normal compresses.