Owners Manual

NOTE: The Fluid Cache mappings for the server are listed in the Volumes area at the bottom of

the page.

Removing Volume Mappings from a Subcluster

1. In Enterprise Manager’s Storage view, expand Storage Centers if necessary and select the

appropriate Storage Center. (Do not select Fluid Cache Clusters or its contents.)

2. In the Storage tab, expand Servers, and then the Fluid Cache clusters if necessary and select the

subcluster whose mappings you want to remove.

3. In the right pane, below the list of servers, select the volume and click Remove Mappings.

There may be some delay while the mapping is removed and dirty data in the cache is flushed to

main storage. When the mapping removal is complete, the volume’s icon in the Storage tab turns

from blue to gray color. You may need to manually refresh the display.

NOTE: The Fluid Cache mappings for the subcluster are listed in the Volumes area at the

bottom of the page.

NOTE: All Fluid Cache volume mappings must be removed before a server can be removed

from a Fluid Cache cluster.

Removing Volumes

To avoid the potential for performance issues and data loss, it is a recommended best practice to

unmount, remove, and delete all volume information after the volume is no longer in use.

Note that this is a general guideline pertaining to all Dell Compellent installations, and is not specific to

Fluid Cache.

For more information and the procedure for removing volume information, refer to the section about

removing volumes in Red Hat Enterprise Linux (RHEL) 6x Best Practices.

Removing a Server from a Fluid Cache Cluster

1. If the server belongs to a server cluster (a “subcluster”) within a Fluid Cache cluster, remove the

server from the subcluster:

a. Prior to removing the server from a Fluid Cache cluster, you must shutdown the host or stop the

Fluid Cache service.

b. In Enterprise Manager’s Storage view, select the appropriate Storage Center. (Do not select Fluid

Cache Clusters or its contents.)

c. In the Storage tab, expand Servers if necessary and locate the server.

d. Right-click the server and select Remove Server from Cluster.

e. When asked to confirm the action, click OK.

In the Storage tab, the server now appears outside of the subcluster, but is still inside the Fluid

Cache cluster.

NOTE: Removing the server from the subcluster removes all mappings created for the

subcluster.

2. Remove all Fluid Cache mappings from all volumes mapped to that server (see Removing Volume

Mappings). Note that you do not have to remove non-Fluid Cache mappings.

3. Remove the server from the Fluid Cache cluster:

a. In the Storage view, select the Fluid Cache cluster. (Do not select Storage Center or its contents.)