ISGH0307E
Not all RESERVEs are being converted.

Explanation

Check found an exception. No entry such as "RNL(CON) TYPE(PATTERN) QNAME(*)" was found, therefore RESERVEs are not currently being converted by default. For improved performance, availability, and serviceability, IBM® suggests that a star complex convert all RESERVEs to global ENQs using the RESERVE conversion RNL. Note that it is not always possible to convert all RESERVEs.

System action

None.

Operator response

Contact your system programmer.

System programmer response

Investigate whether all RESERVEs can be converted to ensure data integrity is maintained. This check should be disabled if certain RESERVEs cannot be converted, for example when the volume is being shared outside of the sysplex. For futher information on converting RESERVEs and for suggestion on what RESERVEs should or should not be converted see z/OS MVS Planning: Global Resource Serialization. Also check with individual applications and components to see if the RESERVEs they issue can safely be converted.

The global resource serialization ENQ/DEQ/RESERVE Monitor can help determine what RESERVEs are being issued on the system. See z/OS MVS Planning: Global Resource Serialization for more information on the global resource serialization ENQ/DEQ/RESERVE Monitor.

Problem determination

N/A

Source

Global resource serialization

Module

ISGHCGRS, ISGHCMSG

Routing code

N/A

Descriptor code

N/A