Software User Manual

Determining, se

tting, or changing the external LU cache mode

You set the cach

e mode when you deﬁne external LUs. HP strongly recommends that you set cache

mode to Disable

d for external LUs. For instructions on mapping external LUs in a new conﬁguration,

see Mapping external LUs (Add LU).

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 L

Usandthedatatheycontain.

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 buttonintheleftpane.TheLU

Operation pane appears.

2. In the Device tree, select an external device group.

3. In the Device list, check the Cache Mode setting (Figure 19). If cache mode is enabled, you should

change it to Disabled.

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.

Managing cache with external storage