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Performance of aroot (several scales)
I had the group which runs our alarm management system (Netcool) add
aroot to the list of DNS servers which it checks. The check is a
simple A record lookup. Attached are the one hour, one day, and ten
day views of the performance from here (the ten day graph is a monthly
view, limited by the started of the testing). The one hour view is
the only one with enough granularity to show failures--displayed as
small red dots below the main graph; you tend to see high latency,
then failure (there were four failures in this hour view). This
display is a little confusing, but the graph creators apparently felt
it was better to do that than whack the scale of the report out
completely. There is a different report which shows failures and
responses outside the service level guarantee; I have not included
that because the SLA was disabled to avoid this test setting off
pagers.
regards,
Ted Hardie
GIF file, v87
GIF file, v87
GIF file, v87