HP XP P9000 Performance Advisor Software - Manual (Page 49)

NOTE:
Once a Meter based Term license is removed, it cannot be added again. However, another Meter
based Term license can be installed.
Consider the following scenario where different TB-Days have been installed:
Table 2 Meter based Term licenses for P9500 array 53036 with 105 TB-Days capacity
Status Available Capacity License Capacity
Active 10TB-Days 100 TB-days
Active 5TB-Days 100 TB-days
Active 100TB-Days 100TB-Days
In the above table, the License Capacity shows the total count of the TB-Days installed, while the
Available Capacity shows the remaining TB-Days. So, the aggregate TB-Days is 115TB-Days. When
you remove Meter based Term license, the aggregate TB-Days are removed, which is 115TB-Days.
You can not remove individual TB-Days, such as 5TB-Days or 10TB-Days. In such a case, P9000
Performance Advisor considers it as capacity insufficient violation and enters a grace period for that
disk array. You can install the required TB-Days of Meter based Term license to end the grace period.
If the TB-Days count is negative, the removal of the Meter based Term license is not allowed. For
example, consider the following scenario where different TB-Days have been installed:
Table 3 Meter based Term licenses for P9500 array 53036 with negative TB-Days capacity
Status Available Capacity License Capacity
Expired –1TB-days 100 TB-days
Expired –7TB-days 100 TB-days
Expired –3TB-Days 100 TB-Days
The aggregate capacity is –11TB-Days. In such a case, the P9000 Performance Advisor does not
allow the removal of Meter based Term license keys and enters the grace period. You can install the
required TB-Days of Meter based Term license to end the grace period.
NOTE:
If the aggregate capacity is 0TB-Days, you can still remove the Meter based Term license. In such a
case, P9000 Performance Advisor enters the grace period and starts negative counting.
To remove a Meter based Term license from the management station:
1. Click License in the left pane.
The License screen appears.
HP StorageWorks P9000 Performance Advisor Software User Guide 49