idealho

Hello,

I have a customer that is a little hard to deal with, every day is asking questions about uptime and one day I toll him what i saw on this post

I don't quite understand.. why is there at least 1hr of downtime each month?.

Emannuel says that our uptime on the SLA is 99% which allows up to 5 hours of downtime in a month.

now my customer wants to now how you calculate that 99% uptime allows up to 5 hours of downtime in a month?

any ideas?

Thank you

__________________
a happy customer of surpasshosting

ozzy

you could multiply 31 days by 24 hours, then take 99% of that. by my calculations it would be less more than 5 hours a month because 31x24=744... 99% of 744 is 736.56...

i could be calculating it wrong, but logically, that's how i would do it.

__________________
ozzy
djodesigns.com
Server = kramer
"mi surpass es su surpass"

idealho

thank you for your replay, I appreciate if somebody else has another opinion?

__________________
a happy customer of surpasshosting

Kayla

Idealho, that is the only way and that is correct.

Emmanuel

31 days x 24 hours each day = 744 hours

if you multiply 744 hours x .995 (99.5%) = 740

744 total hours possible in a month - 740 hours of total uptime allowed =

4 hours of downtime in a total month is allowed.

If it falls below that it will be below 99.5%

An error on my part the uptime is 99.5% not 99%

.5% makes a lot of difference

__________________
Emmanuel :: Surpass Hosting Network Admin
http://www.SurpassHosting.com

idealho

Hello Emmanuel,

I got your 5 hours calculations, so if I offer a 99% the total will the 7.44 hours of downtime allowed every month.

Thank you for your help, my customers is driving me crazy with this matter, but now I can handle.

__________________
a happy customer of surpasshosting

ozzy

wow... i've never had a customer bug me so much about an issue like that... good luck with that!

__________________
ozzy
djodesigns.com
Server = kramer
"mi surpass es su surpass"

idealho

yes, I know is really stupid

but I think he want a credit for a couples hours of downtime that I have on my server last month, thats why he insist with this.

__________________
a happy customer of surpasshosting

Dark Matter

You can to the math for per month but here is the Correct figures.

Uptime Percentage Down Time Translation (per year)
99.5 % 1 day 19 hours 48 minutes 0 seconds
99 % 3 days 15 hours 36 minutes 0 seconds
95 % 18 days 6 hours 0 minutes 0 seconds