Reallocating the current extent

1. Shut down Control‑M/Tape using the operator command S CTTINIT,PARM='MODE=TERM'.
2. Unload the Stacking Database data component using the IOADUL utility. The output of this utility is loaded to the new and larger Stacking Database.
3. Rename the production Stacking DATA and INDEX components. For example, rename the CTT.V900.STKD.E000 file to CTT.V900.STKD.E000.OLD. This file is kept as a backup for the Stacking Database.
4. Using ICE, select Customization. Enter CTT in the Product field, and select Product Customization.
5. Select major step 2, "Customize Control-M/Tape Datasets," and then minor step 2, "Stacking Database Space Calculation."
6. Calculate the space needed for your Stacking Database, and update the definitions on the screen. To calculate the amount of space needed, see the stacking database calculation topic in the Control‑M/Tape installation chapter of the INCONTROL for z/OS Installation Guide.

   The Stacking Database can be enlarged by increasing the number of blocks, by enlarging the block size, or both.

7. Select minor step 4, "Save parameters into Product Libraries."
8. Select minor step 6, "Create and Init Stacking Database," and submit the job. This job allocates and formats a new Control‑M/Tape Stacking file.
9. Reload the Stacking Database data component into the new and larger data component, using the IOADLD utility.
10. Run the CTTDBIB utility.
11. Restart Control‑M/Tape using the operator command S CTTINIT,PARM='MODE=INIT'.