- Decommission a server for an MGT, MDT, or OST

# Decommission a server for an MGT, MDT, or OST

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Caution: When a server for an MGT, MDT or OST, is removed (decommissioned), any file systems or targets that rely on this server will also be removed.
To remove (decommission) a server for an OST:

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

2. | In the File System column, click the name of the file system in which the target is located. The file system window is displayed.

3. | Under Object Storage Targets, locate the target you want to decommission. Click the corresponding Primary server or Failover server that you want to decommission.

4. | In the dialogue window that opens, click the Actions drop-down menu for that server and click Remove to remove the server from the file system. Click Confirm to perform this action.

5. | Click the Actions drop-down menu and click Stop LNet to shut down the LNet networking layer and stop any targets running on this server.

6. | Click the Actions drop-down menu and click Unload LNet to stop LNet, if it is running, and unload the LNet kernel module to ensure that it will be reloaded before any targets are started again. (Clicking Start LNet will reload the LNet kernel module and start the LNet networking layer again.)

Note: To remove the record for the server from the manager without attempting to contact the server, click the Actions drop-down menu and click Force Remove. Any targets that depend on this server will also be removed without any attempt to unconfigure them. This action should only be used if the server is permanently unavailable.

Warning: The Force Remove command will remove the server from the Intel® Manager for Lustre* configuration, but not remove Intel® Manager for Lustre* software from the server. All targets that depend on the server will also be removed without any attempt to unconfigure them. To completely remove the Intel® Manager for Lustre* software from the server (allowing it to be added to another Lustre file system), first contact technical support.

Note: Each server is also separately listed at Configuration > Servers, however the server configuration regarding which file system, target, and HA status is not shown on the Servers window.