I expected this to be released about 2 months ago, but it turns out they were biding their time for IronMan 3 to drop so we’d all be a bit too distracted to notice that they’ve put together a great post on the Exchange Team Blog about sizing 2013.
What they still have NOT done, however, is finished up the sizing calculator. It looks like they’re working on it, but that is still a while away.
Head on over to their latest entry, Ask the Perf Guy: Sizing Exchange 2013 Deployments, to find out more.
Once I’ve had a chance to parse through a bit more I’ll toss a gist out there.