FAQ of SLA

What is the full name of SLA? #

SLA = Service-level agreement

What is SLA? #

An SLA (Service-level agreement) is an agreement between an IT service provider and a customer. An SLA defines the IT service, the obligations of the IT service provider and the customer and records service level targets (SLRs), which commonly include service uptime or acceptable downtime.

What does 99.9% (three nines) uptime mean? #

The acceptable downtime of 99.9% (three nines) uptime is approximately 8 hours 46 minutes per year.

What does 99.99% (four nines) uptime mean? #

The acceptable downtime of 99.99% (four nines) uptime is approximately 52 minutes per year.

What does 99.999% (five nines) uptime mean? #

The acceptable downtime of 99.999% (five nines) uptime is approximately 5 minutes per year.