Creating an image copy of the Db2 directory and catalog: DSNTIJIC

After you add a data sharing member, you need to create a backup copy of the Db2 directory and catalog. Use the DSNTIJIC job that was generated during the installation or migration of the originating member to create the image copy.

Procedure

To create an image copy of the directory and catalog:

  1. Run job DSNTIJIC.

    The DSNTIJIC job contains a list of all the Db2 directory and catalog table spaces. Start of changeWhen you run job DSNTIJIC, it invokes the Db2 image copy utility to copy these table spaces to disk or tape, depending on the value that you select for IC DATA SET UNIT NAME field.End of change Having copies of table spaces enables you to recover the Db2 catalog and Db2 directory in case of a failure.

  2. Start of changeIf the DSNTIJIC job fails or abends, verify that no problems exist with the tape or disk setup for image copy. If you find no problems with the setup, examine the utility job output (JOBLOG) or the console log for problems. For example, look for I/O errors or incorrect sizes.End of change

What to do next

Run the DSNTIJIC job periodically, perhaps daily or weekly, to reduce the amount of time required for recovering the directory or catalog. The copied data and log data sets are needed for recovery.