CTVDELI – Delete Index Files from DASD

This CTVDELI utility scans the Migrated User Report List file and erases from the disk index files that are no longer needed on DASD. The utility determines which indexes to delete based on user-specified selection groups.

Note: Indexes deleted from DASD by the CTVDELI utility are retrieved from the migrated media when required.

A selection group consists of a DAYS statement and optional INCLUDE / EXCLUDE statements. The DAYS statement contains a retention period that specifies the number of days the indexes remain on DASD, after that they are deleted by the utility. The optional INCLUDE / EXCLUDE statements further qualify which indexes belong to the selection group.

By specifying multiple selection groups, each with its own retention period (and INCLUDE / EXCLUDE statements), groups of entries with differing retention periods can be deleted by a single execution of the CTVDELI utility.

Selection groups are scanned sequentially. The processing of a report is determined by the first selection group whose INCLUDE / EXCLUDE criteria match the index. INCLUDE / EXCLUDE criteria in other selection groups are ignored for that index.

$INDEX records are not deleted from the Migrated User Report List file because they are needed for accessing the migrated index file.

After an index file is deleted, a flag indicating INDEX DELETED FROM DASD is placed in the corresponding $INDEX record.