Troubleshooting RHEV - Getting Started with Red Hat Enterprise Virtualization - page 171

The stop procedure
The following steps need to be performed in order to bring the Red Hat Enterprise Virtual-
ization infrastructure to the maintenance state:
1. All the virtual machines should be powered off to avoid any data loss while per-
forming maintenance.
2. Next, all the storage domains need to be put under the maintenance state. This can
be done by navigating to the Data Centers tab and selecting the data center and
storage subtabs in the bottom pane.
3. Select the storage domain and click on Maintenance . Please note that you must
deactivate the Master storage domain in the end.
4. As the next step, you can mark the hypervisor host to the maintenance mode. To do
so, navigate to the Hosts tab, select the host, and click on Maintenance . Once the
host status is changed to maintenance , then you can safely shut down the host.
5. Finally, shut down RHEV Manager Server.
6. Optionally, you can also power down the storage.