Program autoinstall and recovery and restart

There is a difference in performance between warm and emergency restarts using program autoinstall without cataloging, and warm and emergency restarts using autoinstall with cataloging.

If you are using autoinstall with cataloging, restart times are similar to those of restarting a CICS® region that is not using program autoinstall. This is because, in both cases, resource definitions are reinstalled from the catalog during the restart. The definitions after the restart are those that existed before the system was terminated.

If you are using autoinstall without cataloging, CICS restart times are improved because CICS does not install definitions from the CICS global catalog. Instead, definitions are autoinstalled as required whenever programs, mapsets, and partitionsets are referenced following the restart.