Cluster node standby mode
Pacemaker allows you to put the desired cluster node into standby
mode. When a cluster node is in standby
mode, it will no longer be able to host cluster resources and services. The standby
mode is useful for cluster node maintenance operations.
The syntax to put a cluster node in standby
mode is as follows:
pcs cluster standby node_name
Here, the node_name
parameter is the name of the cluster node you want to put in standby
mode as it appears when running the pcs status
command.
The following is the syntax used to take a cluster node out of standby
mode:
pcs cluster unstandby node_name
Here, the node_name
parameter is the name of the cluster node you want to take out standby
mode as it appears when running the pcs status
command.
You can put a cluster node called node-4.geekpeek.net
into standby
mode with the following command:
pcs cluster standby node-4.geekpeek.net
In this screenshot, you can see the command used to put the node-4.geekpeek.net cluster node in standby...