CTDDIG – User Report List File Integrity Check

The CTDDIG utility checks the integrity of the User Report List files (that is, Active, Permanent, History, and Migration Report List files) by comparing the data and index components of these files. Optionally, detected errors can be corrected. The utility checks data, main, and all alternative index components. This utility can detect and correct the following types of errors:

• More than one data record exists with the same key.
• A data record exists without a corresponding index record.
• An index record exists without a corresponding data record.
• A data record and its corresponding index record do not have the same update timestamp.

Note: This utility can mark an alternative index component as available for reading. It causes the alternative index to be used during report searching.

The CTDDIG utility is executed in two sequential stages, as follows:

Table 222 CTDDIG Stages

This utility can be run while Control-D and the Online monitors are active. However, it locks the specified User Report List file so other applications cannot modify it.

• If MODE is set to TEST or TESTMRK, the specified file is locked during only Stage 1.
• If MODE is set to CHANGE, the specified file is locked during both Stage 1 and Stage 2.

You should run this utility in TEST or TESTMRK mode before running it in CHANGE mode.