1.Putting a node into standby mode
crm_standby -U c001n02 -v on
2.Putting a node into normal mode
crm_standby -U c001n02 -v off
3.Checking the node’s standby status
crm_standby -G -U c001n02
4. Removing a node’s standby setting (also returns it to active mode)
crm_standby -D -U c001n02