"We’ve all had to face it. At some time the data center you rely on will run out of something – space, power, tolerance. When that happens we are faced with the daunting task of a data center migration. If you talk to data center managers this is a time of pure terror and frustration. The network guys all have a reason why they can’t unplug anything. The end users have change window freezes and new application deployments that you can’t alter. The team running that CMDB service you paid a fair penny for seem to have forgotten a lot of information. It just goes on. Oh, and—you have to manage this while keeping your budget flat.
Sometimes it’s best to step back and take a look at the good and the bad. Perspective is always a good thing. I propose that there are five really good things (best practice) about a data center migration and five bad things. Call it the Yin and Yang of data center migration."