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The Stacking Database contains statistical information about datasets processed by Control‑M/Tape. This information is gathered from various locations (for example, the Media Database, or the Trace file) by the CTTSTK utility. The information in this file is used by the Dynamic Dataset Stacking facility in the real‑time environment.
The Stacking Database is composed of the following physical files:
Table 232 Stacking Database Files
File |
Description |
|---|---|
Data file |
Contains statistical information about datasets processed by Control‑M/Tape. |
Index file |
Provides keyed access to data in the Data file. |
These files are managed by the IOA Access Method. For more information, see IOA Access Method.
Records in the Data and Index files are mapped by assembler macros CTTSTK and CTTSTX, respectively.
Note: New Stacking Database extents are not automatically defined. They can only be defined manually, using the IOADBF utility. In addition, Stacking Database records are of fixed length only.
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