HP XP P9000 Performance Advisor Software - Manual (Page 45)

Because this is a short term unplanned surge in storage requests, you can install TB-Days of Meter
based Term license to monitor the additional usable capacity for the specified duration. To monitor
25TB for five days (at the rate of 25TB a day), generate and install 125TB-Days on 11/30/2010.
As 125TB-Days are sufficient for five days, P9000 Performance Advisor ends the grace period and
updates the following fields in the License screen – License Status section:
• After installation on 11/30/2010:
• License Capacity: 50TB, +125TB-Days
• License Status: Installed
• Term (Days): N/A
• End Date: Never
• After 1:00 PM on 11/30/2010:
• License Capacity: 50TB, +100TB-Days
Consider that 25TB-Days are used after installation.
• License Status: Installed
• Term (Days): 4
• End Date: 12/04/2010
If the remaining 100TB-Days are completely used in the first half of 12/04/2010 and any of the
following is not done:
• The usable capacity is reduced to within the Permanent licensed capacity limit
• Extra TB-Days installed to monitor the 25TB usable capacity
• Another Permanent license installed to monitor the 25TB usable capacity
As a result, P9000 Performance Advisor again enters 60 days grace period after 1:00 PM on the
same day and 0TB-Days are available. In addition, it begins reducing (negative count) the installed
TB-Days by 25TB and updates the following fields in the License screen – License Status section daily.
After 1:00 PM on 12/04/2010:
• License Capacity: 50TB, 0TB-Days
• License Status: Capacity Insufficient
• Term (Days): 0
• End Date: Expired
If 100TB-Days are completely used in the second half of 12/04/2010, P9000 Performance Advisor
enters 60 days grace period on the same day but updates the License screen - License Status section
only after 1:00 PM on 12/05/2010. In this case, the License Capacity shows 50TB, –25TB-Days on
12/05/2010.
Exceeding Meter based Term licensed capacity and grace
period
When the existing TB-Days are not sufficient to monitor the additional usable capacity, P9000
Performance Advisor considers it as a capacity violation and enters a grace period of 60 days. During
the grace period, P9000 Performance Advisor begins reducing the installed TB-Days. Within 60 days,
if a Permanent license is installed, P9000 Performance Advisor stops reducing the TB-Days and ends
the grace period for that particular P9000 disk array. If appropriate TB-Days are installed, P9000
Performance Advisor uses part of the units to nullify the negative count and the rest of the units to end
the grace period.
HP StorageWorks P9000 Performance Advisor Software User Guide 45