Re: Fundamentals of the post-boom Internet data center 3/1/02

August 11, 2010

I find the example in the conclusion simplistic and somewhat flawed.  I am a strong advocate of the Business Risk Assessment in the determination of high availability design and assume that the balance-sheet approach described addresses that as well.  But to conclude that dual-cording does not improve reliability because the external power source has no redundancy ignores other factors internally that provide the second source such as: on-site generation, redundancy in the infrastructure — double-ended substations, dual/redundant UPS etc.

Howard Levison
levisonh@cs.com 


         
 

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