HP Capacity Advisor 7.2 User Guide

in the hierarchy of forecast models, the procedures below are broken into two parts: accessing
the forecast model and defining it.
NOTE: Although forecast models cannot be deleted, all but the global forecast model can be
disabled and enabled. Follow the appropriate procedure for accessing the forecast model and
then follow the procedure for disabling or enabling it.
Accessing the Global Forecast Model
The annual growth rates for the global forecast model are frequently based on an organization's
planned growth rate. The global forecast model applies to all reports generated on systems and
complexes. Reports on workloads or scenarios without a forecast model also use the global forecast
model.
Prerequisites
• You must be logged in to Matrix Operating Environment. (See “Accessing Capacity Advisor”
(page 37).)
• You must have sufficient authorization to define the global forecast model.
Procedure 25 To access the Global Forecast Model
1. If you are not on the Planning tab:
• If the Planning tab is visible, click the Planning tab.
• If the Planning tab is not visible, select Optimize→Capacity Planning→View Planning
Scenarios... from the top menu bar.
The Planning tab opens with a list of scenarios.
2. From the Planning tab menu bar, select Configure→Global Forecast...
The Forecast Editor - Global Forecast Model screen displays.
Defining the Global Forecast Model
The settings that you define here are applied globally in the absence of other specifically targeted
forecast models.
This procedure assumes that you have opened the Global Forecast Model screen (see “Accessing
the Global Forecast Model” (page 61).) .
1. Provide a brief description of the forecast model in the Description field.
2. Choose a time frame to use in tiling the data into the future (default: fixed interval).
The time interval (date range) field adjusts according to your time frame selection.
3. Select the date range for defining the period of data collection to use as the basis for the
forecast.
a. For a fixed interval: select the calendar interval, Beginning or Ending, and the date
(MM-DD-YYYY)
b. For a ranged interval: select the beginning and ending dates and times.
c. For a float interval: select the calendar interval, Beginning or Ending, and general
date indicator (default: Last Full Day)
4. Provide Annual Projected Growth Rates for each resource: CPU, Memory, Network I/O, and
Disk I/O. Use positive values for increasing utilization, negative values for decreasing
utilization, and zero for no change). The default is 1% projected annual growth for every
resource.
TIP: You can estimate projected annual growth by including trend calculations in utilization
reports derived by analyzing historical data. (See “Determining trends in Capacity Advisor”
(page 32) and “The report wizard” (page 50).)
Forecasting utilization 61