HP XP P9000 Performance Advisor Software - Manual (Page 23)

A Meter based Term license is generated in TB-Days for the usable capacity that you want to
monitor and the duration for which you want to monitor. To calculate the total TB-Days of Meter
based Term license that you require, use the following formula:
Usable capacity * Duration (number of days)= TB-Days Meter based Term
license
IMPORTANT:
•
Additional usable capacity refers to the usable capacity that is beyond the Permanent licensed
capacity.
•
A Meter based Term license cannot be installed on multiple management stations.
•
Multiple Meter based Term licenses can be generated and installed on a management station.
In such cases, the licenses are used successively.
For more information on generating and installing Meter based Term license, see “Generating
licenses at the HPAC license key website” (page 29) and “Installing licenses” (page 30) .
Meter based Term license requirement
Meter based Term licenses are useful when you want to monitor an additional usable capacity for
a defined duration or when there is an unplanned surge in the usable capacity that might
subsequently reduce. For steady state license requirements, use Permanent licenses. For dynamic
license requirements arising out of varying business needs, use appropriate TB-Days of Meter based
Term license.
IMPORTANT: For the installed TB-Days to function properly, you must install a minimum of 1TB
Permanent license.
The following image illustrates the above mentioned cases.
Example scenario 1
Consider that a small-sized company books air tickets online for its customers. The company has
one P9000 disk array of 75TB usable capacity. A Permanent license is installed on 01/01/2010
to monitor the 75TB usable capacity. Based on the heavy online booking trend during December'09
- January'10 time frame due to Christmas and New Year celebrations, the company is expecting
a surge in the online booking traffic beginning December'10 and continuing till the end of 1st
week of January'11. The company is confident that at least 50TB additional usable capacity is
required during this time frame (estimated 39 days).
In such cases, the company has two options:
•
Generate and install a Meter based Term license, as the 50TB spike in usable capacity is for
a limited duration.
•
Generate and install a Permanent license for the 50TB usable capacity.
HP XP P9000 Performance Advisor licenses 23