DFSMSdss interface considerations
DFSMSdss is the data mover in z/OS and provides all data copying and moving functions.
This chapter describes several interface considerations for how DFSMShsm invokes DFSMSdss, but also how DFSMSdss invokes DS8000 FlashCopy functions. DFSMSdss provides the actual fast replication function for DFSMShsm for FRBACKUP and FRRECOV.
DFSMShsm is overall in charge to control all invocations of DFSMSdss. For its various functions, DFSMShsm calls or transfers to DFSMSdss. DFSMShsm interfaces through z/OS cross-memory services ...
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