With structures allocated in a coupling facility with CFLEVEL=5 or higher, on a WRITE_DATA request, you can require the target data entry to compare successfully with a version number and type of comparison that you specify in order to be selected for processing. You can specify that a version number be equal or less-than-equal to a designated version number with the VERSCOMPTYPE keyword. If the version number for the target data entry does not meet the version comparison criteria you specify, the IXLCACHE request fails with no resultant change to the structure. The system returns the version number that did not meet the required comparison criteria in the cache answer area.

On DELETE_NAME and DELETE_NAMELIST requests, you can require that all selected data entries have a version number which compares successfully with a version number and type of comparison you specify. If the comparison fails on a DELETE_NAME request, no processing is performed for the current entry and processing continues with the next entry to be considered. When a version number comparison fails on a DELETE_NAMELIST request, the ERRORACTION keyword allows you to specify that either processing is to continue with the next entry or the request is to be stopped. If stopped, the index of the entry that caused the error is returned in the cache answer area.