Energy Sustainability and Management of Data Center

The system reliability of Tier 4 or Class F4 or DC Category D can be derived by calculated probability density function (pdf), mean time between failures (MTBF), mean time to repair (MTTR), and failure rate (A) of component statistical reliability, from IEEE 493, to availability of data center. Since, data center standards, Uptime Tier Classification, TIA-942, BICSI 002, BITKOM, and EN 50600, are defined system reliability design through topology. Most of topology defines by a single line diagram of power distribution systems (PDS). The PDS design approach is using a coherent zone protection mechanism. This mechanism is tried to get rid of single point of failure by applying redundant topology N, N+l, 2N, and 2(N+1) through PDSs. This paper describes the zone protection approach of system reliability design for Tier 4 data centers. This paper was conducted design analysis of power distribution systems (PDS) from 8 (Tier 3) data centers and 2 (Tier 4) data centers while compared 5 data center standards subject to how to build the highest reliability of data center through zone protection as a recheck point. The results of paper analysis propose zonal survivability stages by applying a concept of mission critical load shedding (MCLS).