14. WORKLOAD FORECASTING › 14.5 Component Operation › 14.5.1 Workload Forecasting Analysis Control Screen
14.5.1 Workload Forecasting Analysis Control Screen
The Workload Forecasting Analysis control parameters allow
you to develop forecast models based on Neugents technology.
You can optionally save the forecasts produced by the program
in a Capacity Planning Forecast file for additional analysis
or presentation.
Using a short set of menus that are described in Section 1.5
of this guide, takes you to the Workload Forecasting Analysis
Control Screen shown in Figure 14-9. This screen appears
after you indicate that you want to insert a new Workload
Forecasting Analysis Query. Two fields on this screen are
filled in on the third line when you first see it: the
inquiry name and the inquiry description, separated by a
dash. You entered these two fields on the Insert Capacity
Planning Analysis screen when you requested that a new
inquiry be added.
/-------------------- Workload Forecasting Analysis --------------------------\
|Command ===> |
|Enter a ? in any data entry field for more information on valid values. |
| CA MICS Inquiry: CPW - Sample Workload Forecasting Query |
|Report title ===> Processor Usage Forecast |
| |
|Model Data Selection: |
|Primary CAP file ===> APU Forecast length ===> 13 |
|Forecast element ===> CPUADBTM Forecasting Method ===> AUTOMATIC (Manual/Auto |
| Start date ===> 01JUN200 Adjustment Option ===> INTERVAL (Int./Annual |
| SYSID ===> SYSB Specify elements ===> YES (YES/NO) |
| ZONE ===> 1 Select Elements from ===> APU (CAP file) |
| No. Weeks ===> 53 Save forecast ===> CHK (YES/NO/AGE/CHK)|
| CAPAPU Values ===> NO Alerting Threshold ===> NO (00-99 Percent) |
| Activate Alerting ===> NO (YES/NO) |
| |
|------------------------------------------------------------------------------ |
|Output Generation Options: |
|Forecasting Report ===> YES Color ===> NO CSV ===> NO |
|Regression Residuals Report ===> NO Color ===> NO CSV ===> NO |
| Color graphics format set ===> TERMINAL |
|Output Formatting Options: |
|Format for Predicted Values ===> HOUR |
|HAXIS Interval Values ===> QTR Format ===> MONYY |
\------------------------------------------------------------------------------/
Figure 14-9. Workload Forecasting Analysis Control Screen
Some of the parameters on the Workload Forecasting Analysis
screen shown in Figure 14-9 are required, while others are
optional. The following is a discussion of the various
parameters as they appear in this figure.
PARAMETER: DESCRIPTION / USAGE:
Report The 60-character title for Workload Forecasting
title: Analysis using Neugents technology reports. No
double quotes (") or semicolons (;) may appear
within the body of the title.
Primary The capacity planning database file containing
CAP file: the historical observations for the forecast
variable of the model. This file may be either
a Sample Application or user defined Resource
Element file, but must reside in the Capacity
Planning database. If you are not sure of the
files or file names available in your capacity
planning database, type a question mark (?) in
the field and a selection list will be
displayed.
Forecast The name of the Forecast variable in the model.
element: If you are not sure of the correct name of the
data elements in the input file, type a
question mark (?) in this field and a selection
list of available data elements will be
Start date: The start date for date range selection. If
Start date is specified, only historical
observations at least as recent as this value
will be included in the analysis.
SYSID: The SYSID for which the report is to be
produced. Note that the Secondary CAP file
(specified under "Select Elements from" on the
screen) must also contain historical
observations for this SYSID.
LVL: The LVL field was reset to Zone because the
data was summarized by Zone. The Zone, Hour or
Dayname to be included in the analysis,
depending on whether you define the Primary CAP
file at the ZONE, HOUR, or DAYNAME
summarization level. The Secondary CAP file
must also contain historical observations for
this ZONE, HOUR or DAYNAME. The field name will
automatically be changed from LVL to either
ZONE, HOUR, or DAYNAME to reflect the Input
file summarization level once you specify the
Input file.
No. wk/mn: The maximum number of days, weeks, or months of
historical observations included in the
analysis. Note that the field name will change
once you specify the file to reflect the
timespan of the Primary CAP File. When used in
conjunction with the Start date parameter,
several options are available for date range
selection control:
o If you specify only Start date, all
historical observations at least as recent
as the value specified for Start date will
be selected.
o If you specify both Start date and No.
wk/mn, the date range for data selection
will begin with the value specified for
Start date and will extend for the specified
number of days, weeks, or months.
o If you specify only No. wk/mn, the date
range for data selection will include only
this number of the most recent days, weeks,
or months.
o If you do not specify a parameter, then all
historical observations will be selected.
Specify Put a Y in this field to specify the CAPAPU
CAPAPU value(s) (up to nine) to be included in the
Values: analysis. The CAPAPU values are specified on
the CAPAPU Selection Values screen shown in
Figure 14-10. You may specify CAPAPUs only if
the Primary CAP file is a resource element file
and is defined as containing the CAPAPU data
elements. Note that the Secondary CAP file
must also contain historical observations for
the specified CAPAPU values.
Forecast The length of a forecast period, in terms of
the Length: timespan assumed by the Primary CAP file. In
other words, a Forecast Length of 13 when the
Primary CAP file is summarized at the WEEKS
timespan would be 13 WEEKS. A non-zero value is
required; the current default value is 1.
Forecasting AUTOMATIC (default) indicates that the Workload
Method: Forecasting application will determine the
adjustment values for each selected training
element. MANUAL indicates that the analyst will
specify the adjustment values on panel CAPG710.
Changing this value from AUTOMATIC to MANUAL
forces the Specify Elements value to be set to
YES.
Adjustment INTERVAL (default) causes the Adjustment value
Option: to be applied equally across the Forecast
Length period. ANNUAL causes the Adjustment
value to be annualized before application. For
example, an Adjustment value of 20 percent for
a particular workload (training element) would
be applied evenly across a 13 week Forecast
Length if MANUAL is specified, resulting in a
20 percent increase in workload processor time
by the end of the forecast period. Specifying
ANNUAL would cause the 20 percent increase to
be taken across one year, and the resulting
increase then applied across the forecasting
period. In this case, the workload processor
time would be increased by 5 percent by the end
of the forecasting period.
Specify YES (default) forces the display of panel
Elements: CAPG710 when panel CAPG700 is "ended". Panel
CAPG710 is used to select a set of elements to
be used for training, as well as to specify an
adjustment percentage when using MANUAL
adjustments.
Select The file that contains the data elements used
Elements for the training phase. This will default to
from: the same file specified for the Primary CAP
file, but may be any Sample Application, user
defined Resource Element or Business Element
Forecasting file that resides in the Capacity
Planning database. If you are not sure of the
files or file names available in your capacity
planning database, type a question mark (?) in
the field and a selection list will be
displayed.
Save YES/NO/AGE/CHK determines if a file
Forecast: containing the forecasted future values of
the Analysis element should be saved by
itself (YES), saved and aged across three
cycles (AGE), used only for ALERT detection
and processing (CHK) or ignored (NO, the
default) value.
o Specifying YES causes the forecasted
observations to be saved in the Capacity
Planning database Forecast file (CPFxxx01)
without aging the file as described in
Chapter 3.
o Specifying AGE causes the forecasted
observations to be saved in the Primary CAP
file and be aged as described in Chapter 3.
o Specifying NO results in the forecasted
observations not being saved in the Forecast
file. If you select this option, the
Forecast file will not be aged.
o Specifying CHK results in the forecasted
observations being used to detect and
process ALERTS. If you select this option,
no new Forecast file will be created but a
Forecast file must exist.
Alerting A value from 01 to 99 percent, or "NO," if the
Threshold: the Save Forecast option does not specify
'CHK'. This value is used to determine the
threshold values used for evaluating whether an
Alert should be raised. The default value is 10
percent. Using the default for example, an
Alert would be raised if the current Actual or
Forecasted value deviated from the Baseline
Forecast value by 10 percent.
Activate YES / NO specifies whether the Service Desk
Alerting: facility is available and used for Alert
processing (YES) or that Alert processing is
handled internally only (NO).
OUTPUT GENERATION OPTIONS:
Forecasting YES / NO specifies whether a printer report of
Report: the training and forecasted values, along with
the model evaluation statistics should be
printed (YES) or ignored (NO).
Regression YES / NO specifies whether a printed report of
Residuals linear regression residual values should be
Report: printed (YES) or ignored (NO). This is a
special case where the client wants to perform
an exploratory data analysis on the Forecast
element values. A linear regression procedure
is executed against Forecast element values.
The regression residual values are presented so
that their values can be observed and verified.
Note: This report is not currently available,
but a graph of residuals is produced
automatically.
Color: YES / NO (Default is NO). Specifies whether a
high resolution graphics should be generated.
CSV: YES / NO (Default is NO). Specifies whether a
CA MICS Q&R WorkStation compatible comma
separated value (CSV) file should be generated
(YES) or ignored (NO). This file can be
downloaded to a PC and used to generate graphs
using the CA MICS Q&R WorkStation.
OUTPUT FORMATTING OPTIONS:
Format for TIME / HOUR / MINUTE specifies how predicted
Predicted values will be formatted in output operations.
Values: The default value of null causes the predicted
values to assume the same format as the
original Analysis element. A value of TIME
causes a SAS format of TIME10.0 to be used. A
value of HOUR causes a SAS format of HOUR6.4 to
be used. A value of MINUTE causes time values
to be first converted to minutes and then
displayed using a SAS format of 5.0.
HAXIS DAY / WEEK / MONTH / QTR specifies the units
Interval used for HAXIS values for printer graphs. The
Values: default value of null causes the HAXIS values
to be assigned using the timespan of the
Analysis file.
HAXIS DATE / DDMMYY / MMDDYY / YYMMDD / MMYY / MONYY
Interval causes various SAS formats to be used for the
Format: HAXIS values for printer graphs. The SAS
formats used are as follows:
DATE DATE9.
DDMMYY DDMMYY10.
MMDDYY MMDDYY10.
YYMMDD YYMMDD10.
MMYY MMYYC7.
MONYY MONYY7.
The default value of null causes a SAS format
of DATE9.
If you entered a "Y" in the CAPAPU Values field on the
Workload Forecasting Analysis screen, the CAPAPU Selection
Values screen displays, as shown in Figure 14-10. On this
screen, you can specify the CAPAPU values (up to nine) to be
included in the analysis, only if the capacity planning
database file is defined as containing the CAPAPU data
elements.
/------------------------- CAPAPU Selection Values -------------------------\
|Command ===> |
| |
|Composing CA MICS Inquiry: Neugents Workload Forecasting with CAPAPU |
| |
| Rule ----+----1----+----2----+----3----+----4----+----5----+----6---|
|CAPAPU ===> _______________________________________________________________|
|CAPAPU 2 ===> _______________________________________________________________|
|CAPAPU 3 ===> _______________________________________________________________|
|CAPAPU 4 ===> _______________________________________________________________|
|CAPAPU 5 ===> _______________________________________________________________|
|CAPAPU 6 ===> _______________________________________________________________|
|CAPAPU 7 ===> _______________________________________________________________|
|CAPAPU 8 ===> _______________________________________________________________|
|CAPAPU 9 ===> _______________________________________________________________|
| |
\------------------------------------------------------------------------------/
Figure 14-10. CAPAPU Selection Values Screen
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