On Fri, Sep 13, 2013 at 04:01:51PM -0400, Jean-Francois Mezei wrote: > 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. > >
from where? to where? what % of the Internet is _not_ reachable from my DNS service at any given time? why is that acceptable? and more importantly, who's job is it to fix/stablize the net so these "remote" locations can reach my DNS service? "we will answer 100% of the valid DNS queries we receive." /bill