O'Reilly logo

High Availability Network Fundamentals by Chris Oggerino

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Predicting Software Availability

To predict the availability of a network or a device in a network, you need to consider the software contribution to downtime. We are now going to explore the software contribution to downtime. We are going to talk a little bit about how MTBF and MTTR is determined for software and then we are going to use those results in some examples. By the end of this section, you should be able to include software downtime in your availability calculations.

The hardest part about considering software in availability calculations is determining what MTBF to use. Many methods are available for calculating reliability of software, and they are mostly very difficult to perform or are not very accurate. The best of the simple ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required