Home
Back
SLA Equation:
| From: | To: |
The SLA Calculator 99.99 calculates the allowable downtime for a 99.99% service level agreement. This represents the maximum acceptable downtime for systems requiring high availability.
The calculator uses the SLA equation:
Where:
Explanation: The equation calculates the maximum acceptable downtime by subtracting the availability percentage from 1 and multiplying by the total time period.
Details: Accurate SLA calculation is crucial for service providers to meet contractual obligations, plan maintenance windows, and ensure system reliability for critical applications.
Tips: Enter the total time period in hours. The value must be greater than 0. The calculator will compute the maximum allowable downtime for 99.99% availability.
Q1: What does 99.99% availability mean?
A: 99.99% availability means the service is operational 99.99% of the time, allowing for only 0.01% downtime over a given period.
Q2: How much downtime is acceptable for 99.99% SLA annually?
A: For a full year (8760 hours), 99.99% availability allows approximately 0.876 hours or 52.56 minutes of downtime per year.
Q3: What types of systems typically require 99.99% availability?
A: Critical infrastructure systems, financial trading platforms, emergency services, and high-availability web services often require 99.99% or higher availability.
Q4: How is SLA different from actual availability?
A: SLA represents the contractual commitment, while actual availability is the measured performance. Providers typically offer credits or penalties if actual availability falls below SLA.
Q5: Can this calculator be used for other SLA percentages?
A: This specific calculator is designed for 99.99% availability. Different percentages would require modifying the calculation formula.