How to Use Multiple Master Schedulers
Each Process Scheduler domain on Windows or UNIX (except for USS) can be set up to have a Master Scheduler started. However, only one Master Scheduler is active to control the workload at any time. The other Master Schedulers remain in a state of idle. If the active Master Scheduler goes down, then one of the idle Master Scheduler servers take control. If a Master Scheduler is not available, then the PSPRCSRV servers, currently in remote server mode, switch back to standalone mode and query the Process Request table to find work.
The Process Monitor component identifies the Process Scheduler server where the Master Scheduler is active. From the Server List tab, where the list of active Process Scheduler servers are displayed, the Master column indicates whether a Master Scheduler is active in any of the servers.