On 13-09-12 21:53, Larry Sheldon wrote: > I expect 100.000% > > I'll accept 99.999% or better.
At these numbers, one has to start to count failover time. A "system" can be disaster tolerant but take 2 hours to recover fully, or it could also recover within a couple of seconds. It depends on architecture and available services. And in networking, you also need to consider internal and external routing update propagation times.
