Switching to a backup domain manager

Each domain has a domain manager and, optionally, one or more backup domain managers. A backup domain manager must be in the same domain as the domain manager it is backing up. The backup domain managers must be fault-tolerant agents running the same product version of the domain manager they are supposed to replace, and must have the Resolve Dependencies and Full Status options enabled in their workstation definitions.

If a domain manager fails during the production day, you can use the Dynamic Workload Console, the switchmgr command in the conman command line, or the IBM Z Workload Scheduler WSSTAT command to switch to a backup domain manager. A switch manager action can be run by anyone with start and stop access to the domain manager and backup domain manager workstations.

A switch manager operation stops the backup manager, then restarts it as the new domain manager, and converts the old domain manager to a fault-tolerant agent.

In the end-to-end environment the original identities of the domain managers are re-established in accordance with the definitions of the Symphony file anytime the Symphony file is renewed following a plan extension or a replan. So, unless you change these definitions, any switches decay with the coming into effect of the next Symphony.