Defining the master coupling facility lock structure

VSAM RLS support requires the coupling facillity to define a master lock structure, IGWLOCK00, for cross system locking.

See the z/OS DFSMSdfp Storage Administration Reference manual for information about calculating the size you need for the lock structure.

The amount of coupling facility space required depends on several characteristics of your hardware configuration and the applications that you run, such as:

You define the lock structure in the CFRM policy with the IXCMIAPU utility.

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