z/OS MVS Planning: Global Resource Serialization
z/OS MVS Planning: Global Resource Serialization
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Rebuilding the ISGLOCK structure z/OS MVS Planning: Global Resource Serialization SA23-1389-00 |
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MVS™ services include a rebuild function
that allows the global resource serialization coupling facility structure,
ISGLOCK, to be resized. The operator can initiate a rebuild of the
structure by entering the following command:
An operator's rebuild request results in the structure being recreated on either the same coupling facility or a different coupling facility, depending on the current coupling facility resource management (CFRM) policy for the structure. In conjunction with the rebuild function, there is a stop rebuild function that allows the termination of an in-process rebuild. If a rebuild of a structure is initiated and the operator wants to terminate it, the operator can enter stop rebuild. Global resource serialization always honors a stop rebuild request and attempts to return to and use, the original lock structure. Any systems that no longer have access to the original structure are terminated with a X'0A3' wait state and a reason code of X'C8' or X'D0'. 
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