HP XP7 User Manual page 19

Maximum capacity of cache management device
Pool attribute
Internal volume
External volume
Use the following formula to calculate the number of cache management devices that a THP V-VOL
requires. In this formula, the user-specified capacity is the user area capacity of a V-VOL.
ceil(user-specified capacity ÷ max-capacity-of-cache-management-device)
The calculated value must be rounded up to the nearest whole number.
Calculating the number of cache management devices required by a volume that is not a THP
V-VOL
One volume that is not a THP V-VOL requires one cache management device.
Viewing the number of cache management devices
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
Management Resource Usage window" (page
Maximum capacity
(in MB)
71 1,768.75
(695.08 GB)
949,659.37
(927.40 GB)
261).
Maximum capacity
(in blocks)
1,457,702,400
1,944,902,400
Maximum capacity
(in cylinders)
837,760
1,1 17,760
"View
Thin Provisioning 19