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A Review of the Use of Structure Data z/OS MVS Setting Up a Sysplex SA23-1399-00 |
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An application instance using a CF structure through an active CF structure connection is referred to as a connector. The data stored in a CF structure as well as the use of the data is application-dependent. Connectors can store data in a structure that, in the event of a connector failure, can be recovered by a new (restarted) instance of the application. Alternately, connectors can store data in a structure that allows another connector (from another application instance) to perform recovery in the event of a failure. The concept of a bond between the data in the structure and a connector to the structure is referred to as a recovery bind. Once a connector has performed the recovery processing required by the application, XCF removes the recovery bind. For example, when an instance of IRLM fails, the failed IRLM has a recovery bind to data in the structure-in this case, information about retained locks. The information about retained locks is required for IRLM recovery processing. |
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