Which is higher availability 2N or N+2?

Modular scalable solutions continue to drive our industry to improved efficiency and availability. Most know about modular cabling infrastructure, CRAC units with VFDs and scalable UPS technology, but did you know you could also have modularity and scalability with your chillers? Most understand that modular solutions improve efficiency, but many believe that a 2N design is higher availability than...

Are the Uptime Institute's Data Center Rating Tiers Out of Date?

Let me start by saying I have the utmost respect for the Uptime Institute’s Pitt Turner, P.E., John Seader, P.E., and Ken Brill and the work they have done furthering the cause of providing some standards to an otherwise standard-less subject like data center design. However, as a data center designer I feel their definitive work, Tier Classifications Define Site Infrastructure Performance, has passed...