Performance Metrics - 2009
Percentage of time that a request for a page is returned within three seconds from on campus (target: 99.9%)
* This drop was caused by a combination of a network failure, which caused a small percentage of requests to take ~3.5 seconds, over a period of about 3 weeks, and a 4-hour outage of web-sign-on.
** This drop was caused by an extended period of downtime (1am-5am) caused in turn by a failure to recover from a brief network outage. The cause of this failure has now been identified and corrected
Availability off-campus, as measured by Pingdom.com (30 second timeout, from at least 2 out of 10 locations ) (no target set)
Percentage of time that a request for a websignon UserLookup request is returned within 5 seconds from within our datacenter* (target: 99.5%)
* This might seem contrived. But 5 seconds is the threshold at which other applications will time-out a request to websignon, and since the vast majority of WSOS-enabled apps live in our datacentres, that's where we should measure from.