When deactivating CA 1, the CAHCHECK STC took a S430 abend in one of the CA 1 Health Checks.
CA 1 was being deactivated at the same time as a health check was being run.
If you need to deactivate CA 1 other than at an IPL, you may need to also deactivate 2 of the CA 1 health checks to prevent abends if the health checks are running at the same time as your deactivation of CA 1. You can use the following commands to do this.
F hzsproc DEACTIVATE,CHECK=(CA_1,CA1_FREE_DSNB_QUICK_SCAN)
F hzsproc DEACTIVATE,CHECK=(CA_1,CA_USED_DSNB_FREE_CHAIN)
When you have restarted CA 1 you can then reactivate these 2 health checks with the following commands:
F hzsproc ACTIVATE,CHECK=(CA_1,CA1_FREE_DSNB_QUICK_SCAN)
F hzsproc ACTIVATE,CHECK=(CA_1,CA_USED_DSNB_FREE_CHAIN)