The QUICKSTART for MVS Checkpoint Control Table

The QUICKSTART for MVS product Checkpoint Control Table, named CKPTCNTL_TABLE, is defined within each DBMS that QUICKSTART applications will access. Based on the terminology for each DBMS, the CKPTCNTL_TABLE can be considered to be a “Database”, “Table”, “File”, “Dataview”, etc.) and consists of the following three columns/fields:

CKPTCNTL_KEY

20 character field - Primary key. This field consists of the program_name.job_name.unique_identifier.

CKPTCNTL_FREQ

The 4 character checkpoint Frequency

CKPTCNTL_INTERNAL

A 56-byte data area.

The QUICKSTART Checkpoint Control Table is used by the QUICKSTART Checkpoint Routine, BTCHCKPT, to coordinate the checkpoint procedure.

In support of the QUICKSTART Checkpoint Control Table, DBMS logging should be enabled, but forward recovery is not required.