New CHECKROLE and KEEPALIVE parameters in BKPTOPTS

The CHECKROLE and KEEPALIVE parameters have been added to the BKPTOPTS statement. CHECKROLE determines if the controller configured as primary (with OPCHOST(YES) in the OPCOPTS statement) performs a check about the backup controller activity, before starting. According to the result, the controller starts as primary controller or backup controller.

KEEPALIVE sets the TCP_KeepAlive socket option for the current connection between the primary controller and backup controller. This allows the backup controller to be notified in a timely manner when an unexpected system failure occurs on the primary controller site.

For more detailed information about the CHECKROLE and KEEPALIVE parameters, see IBM Z Workload Scheduler: Customization and Tuning. For details about the TCP_KeepAlive socket option, see z/OS Communications Server: IP Programmer's Guide and Reference.