[Crawl-Date: 2026-04-23] [Source: DataJelly Visibility Layer] [URL: https://griffinitgroup.com/it-glossary/service-availability] --- title: What Is Service Availability? description: The ability of an IT service to perform its agreed function when required. Service availability is measured as the percentage of agreed service time that ... url: https://griffinitgroup.com/it-glossary/service-availability canonical: https://griffinitgroup.com/it-glossary/service-availability og_title: What Is Service Availability? og_description: The ability of an IT service to perform its agreed function when required. Service availability is measured as the percentage of agreed service time that ... og_image: https://griffinitgroup.com/griffin-logo-og.png twitter_card: summary_large_image twitter_image: https://griffinitgroup.com/griffin-logo-og.png --- # What Is Service Availability? > The ability of an IT service to perform its agreed function when required. Service availability is measured as the percentage of agreed service time that ... --- Business Intermediate ## What Is Service Availability? What Is Service Availability? Service Availability the ability of an IT service to perform its agreed function when required. Service availability is measured as the percentage of agreed service time that the service is actually operational, typically expressed as uptime percentage over a defined period. ## Why This Matters for Your Business Service availability is the metric that matters most to business users — they don't care about server uptime if the application they need is still unreachable due to a network issue. Measuring availability at the service level (not just the infrastructure level) gives you a true picture of the user experience. ## Looking for Service Availability consulting? See how Griffin IT Group delivers service availability as part of our Enterprise Technology Operations Centre. We provide hands-on implementation, ongoing management, and expert consulting for businesses across the Niagara Region and GTA. [See our Service Availability Services](https://griffinitgroup.com/services/service-reliability-observability/sli-slo-sla-management) ## Related Business Terms [Intermediate ## IT Asset Management The ITSM practice of tracking, managing, and optimizing IT assets throughout their lifecycle — from procurement and deployment to maintenance and retirement — to maximize value and ensure compliance.](https://griffinitgroup.com/it-glossary/asset-management) [Intermediate ## Change Enablement The ITSM practice of controlling and managing changes to the IT environment in a structured way, minimizing risk and disruption while enabling the organization to adapt and innovate safely.](https://griffinitgroup.com/it-glossary/change-enablement) [Beginner ## Help Desk A centralized resource designed to provide technical support to users. IT help desks handle troubleshooting, user questions, and service requests to maintain productivity and resolve issues quickly.](https://griffinitgroup.com/it-glossary/helpdesk) [Intermediate ## Incident Management The ITSM practice of restoring normal service operation as quickly as possible after an unplanned interruption or reduction in quality, minimizing the impact on business operations.](https://griffinitgroup.com/it-glossary/incident-management) [ServerPrevious](https://griffinitgroup.com/it-glossary/server) [All Terms](https://griffinitgroup.com/it-glossary) [Service CatalogNext](https://griffinitgroup.com/it-glossary/service-catalog) ## Need Help With Business? Our team can help you understand and implement the right technology solutions for your business. Get expert guidance from local IT professionals. 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