- Failover all targets from a primary to a secondary server

# Intentionally failover of all targets from a primary to a secondary server

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Warning: After you have created a Lustre* file system using Intel® Manager for Lustre* software, you should not normally make any configuration changes outside of Intel® Manager for Lustre* software, to file system servers, their respective targets, or network connectivity. Doing so will diminish or defeat the ability of Intel® Manager for Lustre* software to monitor or manage the file system, and will make all or portions of the file system unavailable to clients.

The following process is recommended only if the affected server has become unresponsive to commands and must be powered down or power cycled in order to perform recovery. This requires that you first failover all connected targets from the affected server to the secondary server.

Under normal circumstances, where the server is otherwise responsive, use the method described in the previous section ( Perform a single target failback from secondary to primary server ) to failover the targets before removing power from the host.

To manually failover all targets from a primary to secondary server, perform these steps:

1. | At the menu bar, click the Configuration drop-down menu and click Servers.

2.

For the primary server on which you want to perform maintenance, click the Actions drop-down and select Power-Off. Note that this action is visible only if PDUs have been added and outlets assigned to servers. This action will switch power off for this server. Any targets running on the primary server will be failed-over to the secondary server. Non-HA-capable targets (targets not supported by a secondary server) will be unavailable until power for the server is switched on again.