Undocumented Catalog Address Space Command – CATSTATS

(Originally posted 2006-02-22.)

APAR OA15323 documents the F CATALOG,REPORT,CATSTATS and F CATALOG,RESET,CATSTATS commands which became available with z/OS Release 7.

The REPORT command will list I/O access statistics, as well as BUFNI, BUFND, and STRNO information for each catalog. To limit the command to just a single catalog there is a second format (using the catalog name) which will list only the catalog specified.

The RESET command will reset all of the I/O statistics for the catalogs. If you only wish to reset the statistics for a particular catalog, you can use a second format (using the catalog name) which will reset only the statistics for that catalog.

Published by Martin Packer

I'm a mainframe performance guy and have been for the past 35 years. But I play with lots of other technologies as well.

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