Built-In Metrics : Retention schemes
  
Retention schemes
A retention scheme is the consolidation method used to retain collected metrics data over time. The retention scheme for each metric class is listed in the following table, as well as the amount of data retained for each retention scheme.
 
Metric class
Retention scheme
Device
 
Rollup
 
Rollup
 
Age out
 
Age out
 
Age out
 
Rollup
 
Age out
 
Rollup
 
Age out
 
Rollup
 
Age out
 
Age out
 
Age out
 
Age out
 
Age out
 
Age out
 
Age out
 
Age out
Interface
 
Rollup
 
Rollup
 
Rollup
 
Age out
 
Rollup
 
Rollup
 
Age out
 
Rollup
 
Rollup
IP SLA
 
Age out
 
Age out
 
(Deprecated) IP SLA Jitter
Age out
 
(Deprecated) IP SLA Latency
Age out
 
(Deprecated) Real-Time Performance Monitoring DNS Latency
Age out
 
(Deprecated) Real-Time Performance Monitoring HTTP Latency
Age out
 
(Deprecated) Real-Time Performance Monitoring Jitter
Age out
 
(Deprecated) Real-Time Performance Monitoring Latency
Age out
User-Defined
 
Age out
Additional information about the retention scheme for each built-in metric is available on the Summary page of the Rollup wizard.
The default, minimum, and maximum values for age-out and roll-up retention periods are listed below. The values are configurable in the Rollup wizard.
Retention scheme
Raw samples
1 hour data
1 day data
1 week data
Age out
 
 
 
 
Rollup
 
 
 
 
Related topics
Roll-up/age-out scheme
Rollup wizard