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Summary of summarization intervals
User's Guide
APPENDIX C
The playback view can use statistic types different from those in the recorded
data, and it can include some estimated and calculated data items not in the
original view. See Table C-2 on page 165 for a definitive list of data items that
can be converted or added to a playback view.
For each sample interval, Historical Server prorates counted values and
performs weighted averages on percentages and rates to align the data with the
requested playback sample interval. The weights are the number of seconds
that each input sample contributes.
Table C-1 summarizes the playback features offered by each of the
summarization_interval values.
Table C-1: Summarization interval features
Feature
All recorded data items are
available for playback.
Timestamp allowed in
playback view.
Changed statistic types
allowed in playback view.
Playback to a file (to create
a summarized recording
session) allowed.
Calculated or estimated
data items not in input view
allowed in playback view.
Session (cumulative) data
prorated when playback
starts in the middle of an
input session.
Sample data prorated when
playback starts in the
middle of an input sample.
Summarization.
Standardized sample
intervals, with appropriate
data adjustments.
Specifications for Defining Playback Views
Raw
Actual
Yes
No
Yes
Yes
No
Yes
No
No
No
Yes
No
Yes
No – the
Yes
sample is
omitted
No
No
No
No
Defined
Entire
interval
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
161
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