The formula to calculate the Availability (A) is:
\[ \text{A} = \frac{\text{UT}}{\text{UT} + \text{DT}} \times 100 \]
Where:
Percentage availability is a measure of the total time a system is operational compared to the total possible time it could be operational. It is a ratio of uptime to the sum of uptime and downtime, expressed as a percentage. High availability indicates that the system is reliable and experiences minimal downtime.
Let's assume the following values:
Using the formula to calculate the Availability:
\[ \text{A} = \frac{720}{720 + 8} \times 100 = \frac{720}{728} \times 100 = 98.90\% \]
The Availability is 98.90%.
