Changing The Cache Mode; Collecting Device Information; Lu Operation Pane, Cache Mode Setting - HP StorageWorks XP12000 User Manual

Figure 19 LU Operation pane, Cache Mode setting

Changing the cache mode

If you need to change the cache mode for existing external LUs, you must delete and remap the
external LU path and definition.
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.

Collecting device information

Before you remap an external storage device, collect the following information for each device:
• LU number in the group
• Universal Unique ID (UUID)
• Path settings
• CVS settings
• Mapped location
• External group number
• CU:LDEV identifier
To collect each of these items:
1. In the XP Remote Web Console main pane, click the External Storage button in the left pane. The
LU Operation pane appears.
External Storage XP user guide for the XP12000, XP10000, SVS200 57