Owners Manual

Maintaining Fluid Cache Installations

This chapter describes tasks that must occasionally be performed after initial Fluid Cache deployment.

WARNING: When performing any operation to a server platform that hosts Fluid Cache software,

you must perform either one of the following methods:

• Shut down a single Fluid Cache Cluster node at a time and perform the host-based server

updates.

After the updates to host server are complete, reboot the host and bring the Fluid Cache Cluster

node online. Before shutting down and updating the next Fluid Cache cluster node, verify that

the Fluid Cache Cluster node is added to Fluid Cache Cluster appropriately.

• Place the entire Fluid Cache Cluster into maintenance mode, and then shut down the entire

Fluid Cache Cluster by shutting down the Fluid Cache Cluster nodes one after the other.

After the updates to the host servers are complete, reboot the server and bring the Fluid Cache

Cluster nodes online.

WARNING: To avoid potential performance issues and data loss, you must NOT shutdown

multiple Fluid Cache Cluster nodes at the same time to perform Fluid Cache host server based

updates.

Removing Volume Mappings

To see a list of Fluid Cache mappings, select the appropriate Storage Center in the Storage view, and in

the in the Storage tab, select the Fluid Cache cluster. The Fluid Cache mappings for the cluster are listed

in the Volumes area at the bottom of the page.

Removing Volume Mappings from a Server

1. Make sure the volume is no longer in use.

2. 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.)

3. In the Storage tab, expand Servers if necessary and locate the server whose Fluid Cache mappings

you want to remove.

4. Right-click the server and select Remove Mappings.

The Remove Mappings window is displayed.

5. In the Remove Mappings window, select the volume and click OK.

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.