10.3. Rebooting Ceph Storage Nodes

To reboot the Ceph Storage nodes, follow this process:

Disable Ceph Storage cluster rebalancing temporarily:

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sudo ceph osd set noout
sudo ceph osd set norebalance

$ sudo ceph osd set noout
$ sudo ceph osd set norebalance

Reboot the node:
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```
sudo reboot
```
```
$ sudo reboot
```
Wait until the node boots.
Log into the node and check the cluster status:
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```
sudo ceph -s
```
```
$ sudo ceph -s
```
Check that the pgmap reports all pgs as normal (active+clean).
Log out of the node, reboot the next node, and check its status. Repeat this process until you have rebooted all Ceph storage nodes.

When complete, enable cluster rebalancing again:

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sudo ceph osd unset noout
sudo ceph osd unset norebalance

$ sudo ceph osd unset noout
$ sudo ceph osd unset norebalance