Service Up-time Standards & Calculator
To understand
the meaning 99.99 or 99.9999 % up time, please see the below table
Name
|
Availability
|
Yearly
|
Monthly
|
Weekly
|
Daily
|
Six Nines
|
100.00%
|
31.536S
|
2.592S
|
0.6048S
|
0.0864S
|
Five Nines
|
100.00%
|
5.256M
|
25.92S
|
6.048S
|
0.864S
|
Four Nines
|
99.99%
|
52.56M
|
4.32M
|
1.008M
|
8.64S
|
Three Nines
|
99.90%
|
8.76H
|
43.2M
|
10.08M
|
1.44M
|
Two Nines
|
99%
|
3.65D
|
7.2H
|
1.68H
|
14.4M
|
Note: D=Day(s), H=Hour(s), M=Minute(s)
& S=Second(s)
Note: The calculation in above table is based on 30 Days month
& the example shown below is considering total 365 days in a year.
|
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The
calculations are like this.
Total Days in
an year
|
365
|
Hours in a
day
|
24
|
Minutes in a
Hour
|
60
|
Total Minutes
in a Year (days*hours*minutes)
|
525600
|
Uptime %
|
99.99
|
Downtime % -
After Deducting from uptime%
|
0.01
|
Formula to understand up time
Let says the UP-TIME % was 99.999 (5 Nines), means the downtime % would be (100-99.999)= 0.001%
So, Yearly Downtime would be=0.001% of Total Minutes in a year
=(0.001*525600)/100 = 5.256 Minutes
in an Year.
= 5.256 Minutes in an Year.
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