Temporarily setting a cluster unit to be the primary unit
You can use the following diagnose command to set a cluster unit to be the primary unit.
diagnose sys ha set-as-master enable
When you enter this command, the cluster immediately re-negotiates and the cluster unit on which you entered this command becomes the primary unit. This change is temporary and will be reverted if the cluster unit restarts.
You can also use the following command from the same cluster unit to turn this option off, causing the cluster to renegotiate and select a new primary unit.
diagnose sys ha set-as-master disable
You can also configure when to disabling the set-as-master setting. For example, to disable the set as master setting on January 25, 2015 you can enter a date after the disable keyword:
diagnose sys ha set-as-master disable 2015 01 25