Service-Level Availability Objective

A Service-Level Availability Objective is a service-level objective that defines target values for service-level availability metrics within IT systems (to establish quantifiable service-level uptime standards for service-level reliability assurance).

• AKA: Availability SLO, Uptime-Based SLO, Service-Level Availability Target.
• Context:
  • It can typically specify Service-Level Uptime Targets through service-level availability percentages.
  • It can typically define Service-Level Downtime Allowances through service-level outage budgets.
  • It can typically establish Service-Level Reliability Standards through service-level failure metrics.
  • It can typically enable Service-Level Availability Monitoring through service-level uptime trackings.
  • It can typically measure Service-Level Operational Continuitys through service-level availability assessments.
  • ...
  • It can often focus on Service-Level Operational Characteristics rather than service-level performance characteristics.
  • It can often guide Service-Level Redundancy Plannings through service-level availability benchmarks.
  • It can often complement Service-Level Performance Objectives within service-level comprehensive frameworks.
  • It can often support Service-Level Disaster Recovery Processes through service-level availability requirements.
  • It can often enable Service-Level Incident Managements through service-level availability thresholds.
  • ...
  • It can range from being a Basic Service-Level Availability Objective to being a High-Availability Service-Level Objective, depending on its service-level availability objective stringency.
  • It can range from being a Component-Level Service-Level Availability Objective to being a System-Wide Service-Level Availability Objective, depending on its service-level availability objective scope.
  • It can range from being a Best-Effort Service-Level Availability Objective to being a Guaranteed Service-Level Availability Objective, depending on its service-level availability objective commitment level.
  • ...
  • It can integrate with Service-Level Availability Monitoring Systems for service-level availability objective tracking.
  • It can connect to Service-Level Incident Management Systems for service-level availability objective restoration.
  • It can support Service-Level Availability Reporting Systems for service-level availability objective compliance assessment.
  • ...
• Examples:
  • Service-Level Uptime Percentage Objectives, such as:
    • High-Availability Service-Level Uptime Objectives, such as:
      • 99.9% Service-Level Uptime Objective for service-level three-nines availability.
      • 99.99% Service-Level Uptime Objective for service-level four-nines availability.
      • 99.999% Service-Level Uptime Objective for service-level five-nines availability.
    • Standard Service-Level Uptime Objectives, such as:
      • 99% Service-Level Uptime Objective for service-level standard availability.
      • 95% Service-Level Uptime Objective for service-level basic availability.
  • Service-Level Downtime Allowance Objectives, such as:
    • Service-Level Monthly Downtime Objectives, such as:
      • Maximum 43.2 Minutes Monthly Service-Level Downtime Objective for service-level three-nines compliance.
      • Maximum 4.32 Minutes Monthly Service-Level Downtime Objective for service-level four-nines compliance.
    • Service-Level Annual Downtime Objectives, such as:
      • Maximum 8.76 Hours Annual Service-Level Downtime Objective for service-level yearly availability.
      • Maximum 52.56 Minutes Annual Service-Level Downtime Objective for service-level premium availability.
  • Service-Level Redundancy Objectives, such as:
    • Service-Level Failover Time Objectives, such as:
      • Sub-30-Second Service-Level Failover Time Objective for service-level rapid recovery.
      • Zero-Downtime Service-Level Failover Objective for service-level seamless transition.
    • Service-Level Backup System Objectives, such as:
      • N+1 Service-Level Redundancy Objective for service-level backup capacity.
      • Active-Active Service-Level Redundancy Objective for service-level continuous operation.
  • Service-Level Recovery Objectives, such as:
    • Service-Level Recovery Time Objectives, such as:
      • 4-Hour Service-Level Recovery Time Objective for service-level disaster recovery.
      • Sub-1-Hour Service-Level Recovery Time Objective for service-level critical system recovery.
    • Service-Level Recovery Point Objectives, such as:
      • 15-Minute Service-Level Recovery Point Objective for service-level data loss prevention.
      • Zero-Data-Loss Service-Level Recovery Point Objective for service-level complete data protection.
  • ...
• Counter-Examples:
  • Service-Level Performance Objectives, which focus on service-level speed metrics rather than service-level uptime metrics.
  • Service-Level Quality Objectives, which measure service-level correctness metrics rather than service-level availability characteristics.
  • Service-Level Capacity Objectives, which track service-level resource utilizations rather than service-level operational continuitys.
  • Business Continuity Objectives, which address organizational resilience goals rather than specific service-level availability targets.
• See: Service-Level Objective (SLO), Service-Level Performance Objective, Service-Level Quality Objective, Availability, Uptime, Downtime, Reliability Engineering, Disaster Recovery.

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