Owner's Manual

Active Performance Monitor 775
As data accumulates, and is rolled up, these booleans begin to appear as percentages—reflecting
the percentage of monitor executions producing results in the specified range. Note that this is
not
a count or percent related to number of times the range changed.
If, for example, you had
bad vs. good ranges, and based range determination on more than one data
sample, the following would occur. If the range is originally
bad then it stays bad until we receive
enough data to change to
good . Although results may occasionally be in the good range, the history
(trend) will not indicate data ever was in the
good range until enough data points appear in good .
Therefore the monitor may indicate
good although many intermittent results may fall outside of
the
good range.
NOTE:
If ranges cover all possible values for an attribute, the daily percentages per range should add up to
100%.
Figure 32-4. Monitor Editor—Thresholds
Available Attributes appear at the top of this screen. Click Add to create a new threshold, or Edit to
modify an existing, selected one. This activates the
Threshold Options editor. Click Apply to accept
your edits, or
Cancel to abandon them. You can enter the following fields there: