Michael Dillon writes: >> And the stories that the power guy I'm working with tells >> about foreign facilities, particularly in middle east war >> zones, are really scary... > >> We fundamentally do not have the facilities problem >> completely nailed down to the point that things will never >> drop. Level 4 >> datacenters can, and will, fail. Nothing you can do including >> just doing 48V DC for everything are truly foolproof solutions. > >A single level 4 datacenter is a Single Point of Failure! > >Two of those middle-eastern style facilities is... ? >Has anyone actually kept track of all these data center failures over >the years and done some statistical analysis on it? Maybe two half-baked >data centers is better than one over the long run? > >Remember that one 10-12 years ago in (Palo Alto, Mountainview?) where a >lady in a car caused a backhoe driver to move out of the way which >resulted in him cutting a gas line which resulted in the fire department >evacuating the data center, cutting off electricity in the area, and >forbidding the diesel generators to be switched on?
Santa Clara. I was working right outside the evacuation radius. Which exchange point was in the building? PB-NAP? CIX? I remember we had a net-dark event associated, but not which one. It was a bad day... The lesson, as you point out, is that geographical redundancy is sometimes necessary. This is as true for providers as for datacenter end-users... -george william herbert [EMAIL PROTECTED]