Expanding the repository data group size

You can use the expand batch utility (CPCUTIL) to increase space allocation automatically for repository data groups, based on analysis of the number of extents.

The expand function can be run with the backup batch utility or can be run independently to increase repository space.

The expand function analyzes repository data groups to determine whether the maximum extents threshold has been violated. If the number of extents in a data group meets or exceeds the threshold, the function that is associated with the data group is stopped, the data group is rebuilt with an increased space allocation of 20 percent, and the function that is associated with the data group is restarted.

The default value of the maximum extents threshold that is used during execution of the repository management EXPAND command is 200. You can change the default threshold parameter THRESHEXT(xxx) in the CPCxINI file. If you specify a default value less than 5, the original default value (200) is used.

Note

The maximum extents threshold that is used with the repository management EXPAND command is used exclusively as a repository management threshold. The maximum extents threshold is not related to the Maximum OSAM/VSAM Extents threshold that is defined in the console.

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