User's Guide

Expected Response Time
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Range drop-down list. The value displayed on the far right of the graph is the
slowest response time observed during the selected time period. The vertical
blue or red bar indicates the most recently observed response time for the
application.
NOTE:
The values in this graph are an average of all response times observed every minute.
Hover over the Expected Response Time graph to display a pop-up with the
most recent response time for the application as well as the date and time the
measurement occurred. The Expected Response Time bar graphs also display
the client count, represented by a number and a monitor icon ( ), and a
client byte count observed as of the most recent measured minute. The client
count is the number of clients using the service at the site. The client byte count
indicates the amount of storage being utilized by clients. The data used for the
client count, the client byte count, and the reported application response time
are from the same recently observed minute.
NOTE: Client counts and client byte counts are not provided for the bar graphs that display the
average application response time of all the sites for that service.
Extreme Management Center uses the standard deviation of the values gathered
as response times to determine the expected response time for an application at
a site. In the bar graph, the medium gray color indicates a response time that
falls within the "expected" range. This range is the average value of all observed
response times plus or minus two standard deviations, or about 95 percent of all
response time values. A response time in the light gray range is better than
expected, while a response time in the dark gray is worse than expected.
When a response time is determined to be worse than expected, the site name
and the response time indicator turn red to flag the application.