Determining, Setting, Or Changing The External Lu Cache Mode; Determining If The Cache Mode Is Disabled - HP StorageWorks XP12000 User Manual

Determining, setting, or changing the external LU cache mode

You set the cache mode when you define external LUs. HP strongly recommends that you set cache
mode to Disabled for external LUs. For instructions on mapping external LUs in a new configuration,
see Mapping external LUs (Add
CAUTION:
Before you delete any LUs that you want to remap, carefully record necessary configuration information.
If you remap existing LUs with changed configuration settings (other than cache mode), you can lose access
to the LUs and the data they contain.

Determining if the cache mode is disabled

If you have an existing configuration and need to determine if your external LUs are configured with
cache mode disabled, follow this procedure:
1. In the XP Remote Web Console main pane, click the External Storage button in the left pane. The
LU Operation pane appears.
2. In the Device tree, select an external device group.
3. In the Device list, check the Cache Mode setting
change it to Disabled.
56 Managing cache with external storage
LU).
(Figure 19). If cache mode is enabled, you should