SLA Calculator

What does uptime mean?

Uptime refers to the duration during which a service remains accessible and fully operational. It is often expressed as a percentage.

What is an SLA?

A service-level agreement (SLA) outlines the expected level of service from a vendor. It specifies the performance metrics used to measure the service, as well as the remedies or penalties if the agreed-upon service levels are not met.

How can downtime be prevented?

To ensure a secure and dependable service, it is crucial to implement redundancy, monitoring systems, and alert mechanisms.

Why are percentiles important?

Percentiles are significant because they represent the level of uptime achieved. Here are some examples:

  • 99.9% uptime allows for approximately 1 minute and 26 seconds of downtime per day.
  • 99.99% uptime allows for less than 9 seconds of downtime per day.
  • 99.999% uptime allows for less than 1 second of downtime per day.

In summary, uptime refers to the availability of a service, SLA defines expected service levels, preventative measures like redundancy and monitoring are essential to prevent downtime, and percentiles indicate the allowed downtime within a given timeframe.

Period Downtime

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