z/OS MVS Programming: Sysplex Services Guide
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Determining the Completion of an OBTAIN Request

z/OS MVS Programming: Sysplex Services Guide
SA23-1400-00

Upon the successful completion of an OBTAIN request, the connected user is recognized as an owner of the specified resource. If ownership was granted through the contention exit then the attributes may have been modified. For example, the resource may have been granted with state, user data, or record data different from what was originally requested. The connected user can examine the appropriate output fields to determine if the attributes have in fact been modified.

If the OBTAIN request was not successful, then the requestor is not the owner of the resource. Any subsequent requests (or those that may have been issued while waiting for the results of the OBTAIN request) will fail with return and reason codes indicating that the requested resource is not owned by this connector. The reasons for which an OBTAIN request might fail include user-controlled conditions, such as the request being denied by the contention exit, and environmental conditions, such as loss of connectivity or structure failure.

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