Guarantee Types

You can specify one of the following guarantees for a service or a resource monitor:
casp1031
You can specify one of the following guarantees for a service or a resource monitor:
  • Availability
    You can specify an availability threshold that is expressed as a percentage of the period for which the service is available or the amount of time in seconds that the service must not exceed for the period. This guarantee interprets the time that a service or a resource monitor service health value is down as outage time. You can also specify these supplemental thresholds when you specify an availability guarantee:
    • Mean Time Between Failure (MTBF)
      (total time between failures) / (total number of failures - 1)
      If the interval between failure falls below this value, the status of the guarantee changes to At Risk and CA Spectrum generates a Major (Orange) alarm for the SLA. Any time the interval between failures exceeds this value, CA Spectrum clears the At Risk alarm. If the guarantee is At Risk at the end of the period, CA Spectrum generates a Critical (Red) alarm for the SLA.
    • Mean Time to Repair (MTTR)
      (total outage time) / (total number of outages)
      If the average outage duration exceeds this value, the status of the guarantee changes to At Risk and CA Spectrum generates a Major (Orange) alarm for the SLA. Any time the average duration falls below this value, CA Spectrum clears the “At Risk” alarm. If the guarantee is At Risk at the end of the period, CA Spectrum generates a Critical (Red) alarm for the SLA.
    • Maximum Outage Time (MOT)
      If the service or resource monitor has an outage that exceeds this value, The SLA is violated, and CA Spectrum generates a Critical alarm for the SLA.
  • Response Time
    Lets you define a threshold for monitoring a service or resource monitor that determines its service health from the results of response time (or performance) tests. This guarantee interprets the time that a service or a resource monitor service health value is degraded as outage.