When the Recovery File (RXX) input to be used for forward recovery includes multiple files, in z/VSE the INNUM= keyword must be used to specify the number of input RXX files. When end-of-file is detected, DBUTLTY checks the INNUM= keyword value to see if additional files are required. If they are, the current RXX file is closed and unloaded and an OPEN issued for the next file. This OPEN causes a message, 0P08t INTERV REQ, indicating the next file needs to be mounted. When the new file is opened, you may receive a message: 4132D ERROR IN FILE ID. If the correct tape is mounted, reply IGNORE.
Note: When CA-DYNAM is active, the processing option U (for unload) must be specified to allow this facility to work properly. Errors result if U is not specified, because without U specified, the tape is rewound and the next open causes the same file to be read a second time.
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