HP Matrix Operating Environment Software - Manual (Page 34)

Forecast model attributes
Table 3-4 Forecast model attributes
Description Field
Descriptive text of this model for your use. Description
Defines the set of historical data on which the forecast will be based. If the
selected set contains invalid data at the end of the period, the forecast will
consider the last valid data to be the end of the period.
The forecast data range can be specified as:
• A fixed interval ending or beginning on a specific date
• A float interval ending after a specified time period
• An absolute interval between two selected dates
Forecast Data Range Selection
When this feature is checked, automatic adjustment of the specified range
is enabled. If the box is checked, and the selected scenario does not have
existing data in the specified range, then the range is shifted to use the
existing data. If the existing data range is shorter than the specified forecast
range, then the forecast range is shortened to fit the available data. Default:
on (checked)
Unchecking the box prevents a forecast from being generated until a data
range is specified that contains an interval of collected data sufficient to
fill the forecast period.
Example: Assume that you want to view activity one week (7 days) into
the future using the most recent week of data. However, in this particular
week, only four days of data were collected. With this featured turned on,
the future will be tiled with repetitions of the four days of data until the
forecast interval is filled.
Automatically adjust the specified
range to use existing data
Specified in percent for each utilization resource measured (CPU, memory,
network I/O, and disk I/O).
Use positive values for increasing utilization, negative values for
decreasing utilization, or zero to indicate no change. Default: zero (0)
Annual project growth rates in force for a workload within a scenario are
displayed in the Scenario Workloads Resource Utilization table on the
Edit Scenario Workload tab.
Annual Projected Growth Rate
NOTE:
Combining the data range with the annual growth rate The forecast is applied point-by-point
to the historical data within the range specified by the user. It is applied linearly, so that a point
1 year from the starting point of a forecast is the result of the full growth rate being applied to
the data. The data within the range provided by the user is used to “tile” the future by applying
the portion of the growth rate appropriate to each point to each point in the data range and
repeating the data set until the desired end point is reached.
34 Key Capacity Advisor concepts