Click
Actions and select
View Management Resource Usage to display the number of cache management devices in the
View Management Resource Usage window. For details, see
View Management Resource Usage window.
Cache management devices are used to manage the cache associated with volumes (LDEVs). Each volume (LDEV) requires at least one cache management device. An LDEV that is not a
DP-VOL requires one cache management device. For an LDEV that is a
DP-VOL, you need to calculate the number of cache management devices required.