9.2. Rebooting Controller Nodes

To reboot the Controller nodes, follow this process:

Select a node to reboot. Log into it and reboot it:
```
sudo reboot
```
```
$ sudo reboot
```
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The remaining Controller Nodes in the cluster retain the high availability services during the reboot.
Wait until the node boots.
Log into the node and check the cluster status:
```
sudo pcs status
```
```
$ sudo pcs status
```
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The node rejoins the cluster.
Note
If any services fail after the reboot, run sudo pcs resource cleanup, which cleans the errors and sets the state of each resource to Started. If any errors persist, contact Red Hat and request guidance and assistance.
Log out of the node, select the next Controller Node to reboot, and repeat this procedure until you have rebooted all Controller Nodes.

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