Interpreting Health Detail Reports

Performance Manager heat fields offer a quick shorthand for conveying health rates.

Each field represents a time interval and each field's color indicates the health during that time interval:

Heat fields are used for each of the three health dimensions (performance, accuracy, and availability) in addition to overall health.
Health dimensions use a range of 0 to 100.
Green (66 - 100)
Yellow (33 - < 66)
Red ( 0 - < 33)
Performance is less than 100, but greater than 80 when performance values for the monitor are less than bound1 (the bound that indicates "good" performance).
Performance equals 0 when performance values for the monitor are greater than bound2 (the bound that indicates "bad" performance).
Performance is greater than 50 when performance values for the monitor are less than bound2.
All performance values between bound1 and bound2 are between 100 and 50 and are interpolated using a logarithmic function.

See Interpreting Measured Data for more information regarding boundaries.

Each time interval, or column, is broken into six rows-each row represents a different dimension of system health:

Incidents - Red fields indicate errors or service target violations. Blue fields are informational. Yellow fields indicate warnings. No differentiation is made between custom incidents and system incidents.
Health (detailed) - Fields in this row are not heat fields. This row is a histogram that displays overall health as a value between 0 and 100. Health values between 33 - 66 are indicated by yellow. Health values of 0 to 32 are indicated by red.
Health (summary) - These heat fields signify aggregate health, factoring in system availability, accuracy, and performance.
Availability - These health fields signify system availability.
Accuracy - These health fields signify system accuracy.
Performance - These health fields signify system performance.

Each heat field is comprised of two elements: (1) a larger box that signifies the average health value recorded during the interval, and (2) beneath that, a smaller box, which signifies the minimum health value recorded during the interval.

To view a small "roll over" dialog that details a specific time interval, hold your cursor over a time interval of interest.

To progressively zoom into chart details (and thereby limit the amount of time covered by a chart), click a time interval of interest. To zoom out of a chart, use the Less ("-") magnifying glass link of the calendar tool at the top.