Comments on: What Is Uptime?

By: Abe

Abe — Thu, 08 Dec 2005 21:19:47 +0000

ThePlanet guarantees 100% network uptime. Servermatrix guarantees 99.99% “network” uptime. Since you’re server is on SM, you really can’t guarantee anything better than 99.99%. Add to that some regular cPanel updates, Apache recompiles and other patches/fixes that might need you to reboot the server or at least restart a service, you can only go so much with the percentage points.

By: /pd

/pd — Thu, 08 Dec 2005 16:26:11 +0000

uptime is 9-niners !! - even for DOD..

By: Stephen Pierzchala

Stephen Pierzchala — Wed, 07 Dec 2005 21:54:15 +0000

I do Web performance analysis for a living

There are REALLY big companies out there that cannot achieve 5 9’s 24/7/365.

As Ian hits on, you need to be up when it matters most. The cost of achieving 5 9’s is so high, that unless you have the budget of the US Defense Department, and an IT staff of thousands, you won’t EVER achieve it.

And even then, you won’t achieve it.

Because the you are sending data across the Internet. And, well, stuff happens on the Internet.

smp

By: Ian Holsman

Ian Holsman — Wed, 07 Dec 2005 21:33:28 +0000

Thanks!

oh.. I also updated the posting to mention http://grabperf.org which does some of this. It has a good example of how you could do this in your own company.