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Availability Formula

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Availability refers to the ability of the system to remain operational and accessible to users over a given period of time. Check FAQs

A = \frac{u}{u + d}

A - Availability?u - Uptime?d - Downtime?

Availability Example

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With units

Only example

Here is how the Availability equation looks like with Values.

Here is how the Availability equation looks like with Units.

Here is how the Availability equation looks like.

0.7 = \frac{15.98}{15.98 + 6.85}

0.7 = \frac{15.98s}{15.98s + 6.85s}

0.7 = \frac{15.98}{15.98 + 6.85}

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Telecommunication Switching Systems » fx Availability

Availability Solution

Follow our step by step solution on how to calculate Availability?

FIRST Step Consider the formula

A = \frac{u}{u + d}

Next Step Substitute values of Variables

∴

A = \frac{15.98s}{15.98s + 6.85s}

Next Step Prepare to Evaluate

∴

A = \frac{15.98}{15.98 + 6.85}

Next Step Evaluate

∴

A = 0.699956197985107

LAST Step Rounding Answer

∴

A = 0.7

Availability Formula Elements

Variables

Availability

Availability refers to the ability of the system to remain operational and accessible to users over a given period of time.

Symbol: A

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Availability

Uptime

Uptime refers to the period of time during which the system or its components are operational and available to provide services without any interruptions or outages.

Symbol: u

Measurement: TimeUnit: s

Note: Value should be greater than 0.

Formulas to find Uptime

Downtime

Downtime refers to the period during which the system or specific services provided by the system are unavailable or non-operational.

Symbol: d

Measurement: TimeUnit: s

Note: Value should be greater than 0.

Formulas to find Downtime

Other formulas in Telecommunication Traffic System category

Go Grade of Service

GoS = \frac{N L}{T c}

Go Number of Lost Call

N L = T c \cdot GoS

Go Total Number of Offered Calls

T c = \frac{N L}{GoS}

Go Cost of Switching System

C sw = n sw \cdot C s + C ch + C c

How to Evaluate Availability?

Availability evaluator uses Availability = Uptime/(Uptime+Downtime) to evaluate the Availability, Availability refers to the ability of the system to remain operational and accessible to users over a given period of time. It is a measure of reliability and uptime, indicating the percentage of time that the system is available and able to provide its intended services. Availability is denoted by A symbol.

How to evaluate Availability using this online evaluator? To use this online evaluator for Availability, enter Uptime (u) & Downtime (d) and hit the calculate button.

FAQs on Availability

What is the formula to find Availability?

The formula of Availability is expressed as Availability = Uptime/(Uptime+Downtime). Here is an example- 0.699956 = 15.98/(15.98+6.85).

How to calculate Availability?

With Uptime (u) & Downtime (d) we can find Availability using the formula - Availability = Uptime/(Uptime+Downtime).

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Availability Formula

Availability Example

Availability Solution

Availability Formula Elements

Other formulas in Telecommunication Traffic System category

How to Evaluate Availability?

FAQs on Availability

Variable Name