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Downtime Formula

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

d = \frac{u - A \cdot u}{A}

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

Downtime Example

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With units

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Here is how the Downtime equation looks like with Values.

Here is how the Downtime equation looks like with Units.

Here is how the Downtime equation looks like.

6.8486 = \frac{15.98 - 0.7 \cdot 15.98}{0.7}

6.8486s = \frac{15.98s - 0.7 \cdot 15.98s}{0.7}

6.8486 = \frac{15.98 - 0.7 \cdot 15.98}{0.7}

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Telecommunication Switching Systems » fx Downtime

Downtime Solution

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

FIRST Step Consider the formula

d = \frac{u - A \cdot u}{A}

Next Step Substitute values of Variables

∴

d = \frac{15.98s - 0.7 \cdot 15.98s}{0.7}

Next Step Prepare to Evaluate

∴

d = \frac{15.98 - 0.7 \cdot 15.98}{0.7}

Next Step Evaluate

∴

d = 6.84857142857143s

LAST Step Rounding Answer

∴

d = 6.8486s

Downtime Formula Elements

Variables

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

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

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

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 Downtime?

Downtime evaluator uses Downtime = (Uptime-Availability*Uptime)/Availability to evaluate the Downtime, Downtime refers to the period during which the system or specific services provided by the system are unavailable or non-operational. It represents the time when users are unable to access or utilize the telecommunication services due to a system failure, maintenance activity, or other factors that disrupt the normal operation of the switching system. Downtime is denoted by d symbol.

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

FAQs on Downtime

What is the formula to find Downtime?

The formula of Downtime is expressed as Downtime = (Uptime-Availability*Uptime)/Availability. Here is an example- 6.848571 = (15.98-0.7*15.98)/0.7.

How to calculate Downtime?

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

Can the Downtime be negative?

No, the Downtime, measured in Time cannot be negative.

Which unit is used to measure Downtime?

Downtime is usually measured using the Second[s] for Time. Millisecond[s], Microsecond[s], Nanosecond[s] are the few other units in which Downtime can be measured.

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Downtime Formula

Downtime Example

Downtime Solution

Downtime Formula Elements

Other formulas in Telecommunication Traffic System category

How to Evaluate Downtime?

FAQs on Downtime

Variable Name