On Sun, Mar 23, 2008 at 2:15 PM, <[EMAIL PROTECTED]> wrote: > > Given that power and HVAC are such key issues in building > big datacenters, and that fiber to the office is now a reality > virtually everywhere, one wonders why someone doesn't start > building out distributed data centers. Essentially, you put > mini data centers in every office building, possibly by > outsourcing the enterprise data centers. Then, you have a > more tractable power and HVAC problem. You still need to > scale things but it since each data center is roughly comparable > in size it is a lot easier than trying to build out one > big data center. >
Latency matters. Also, multiple small data centers will be more expensive than a few big ones, especially if you are planning on average load vs peak load heat rejection models. > > If you move all the entreprise services onto virtual servers > then you can free up space for colo/hosting services. There is no such thing in my experience. You free up a few thousand cores, they get consumed by the next lower priority project that was sitting around waiting on cpu. > > > You can even still sell to bulk customers because few will > complain that they have to deliver equipment to three > dara centers, one two blocks west, and another three blocks > north. X racks spread over 3 locations will work for everyone > except people who need the physical proximity for clustering > type applications. > Racks spread over n locations that aren't within a campus will be more expensive to connect. /vijay > > --Michael Dillon >