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Last Login: Saturday, June 11, 2011 9:29 PM
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| This is a copy of a email I received from UI, here they -UI- answered what Mr. Manos set ina video. Have you seen it?
It is worth to look into.
And what do you think on...?
saludos
roberto sanchez,RCDD
This Tier Myths & Misconceptions finishes the discussion begun by Digital Realty Trust's video "Myth of the Month: The Tier System."
We agree with Mr. Manos that a complete understanding of the Uptime Institute's Tiers is required for it to be a useful industry standard. Unfortunately, Mr. Manos' commentary did not accurately represent the concepts that define the Tiers.
Myth: Tiers do not address business requirements.
Uptime: The Tiers are a performance-based, business-case-driven data center benchmarking system. An organization's risk tolerance determines the appropriate Tier for the business. In other words, the Tiers are predicated on the business case of the individual company. Without determination of a unique business case, organizations are misusing the Tiers and bypassing the internal dialogue that needs to occur.
Myth: Tier II provides Concurrent Maintenance opportunities.
Uptime: Tier II ensures redundant capacity components, but requires a shutdown of the computer room for planned maintenance or replacement of critical equipment. The fundamental concept of Tier III is Concurrent Maintenance functionality. Mr. Manos asserts the following: "Concurrent Maintainability is actually one of the most important driving design characteristics that you need to have inside your data center. You need to be able to maintain your facility while it's running, regardless of if it's a Tier IV to a Tier II design." Mr. Manos mentions Tier II and IV solutions, but disregards Tier III. The requirement to maintain infrastructure without shutting down equipment, known as Concurrent Maintainability, defines Tier III. Many owners' business cases, including healthcare, domestic outsourcers, and state governments, require Tier III. The list of organizations that have protected their investment with Tier III Certification may be found HERE.
Myth: Nobody needs a Tier IV data center
Uptime: Many owners' business cases require Tier IV, including banking/financial; insurance; outsourcers in UK, Middle East, and South Africa; and federal and provincial governments. (List of Tier IV Certifications may be found here.) The Tiers are not prescriptive. Tier IV is not the best answer for all organizations, neither is Tier II . Experience dictates that owners perform due diligence assessments of their own and outsourcers' facilities to address the following: If the facility is Tier II and by definition does not include Concurrent Maintenance capabilities across all critical subsystems, a) can the business tolerate a maintenance-related shutdown and b) how does the site operations team propose to coordinate a maintenance-related, site-wide shutdown across 10s or even 100s of data center clients?
This year, Uptime Institute Professional Services expanded its Tier Program with formal initiatives to address Tier Classification System Myths & Misconceptions prevalent in the industry. The first initiatives include the Tier Standard: Topology, Accredited Tier Designer (curriculum and professional designation), pieces in leading industry publications, and informational emails. The first email, sent August 27, addressed the Tier myths of utility feeds, component count, TIA, and site location.
For further information, please contact Julian Kudritzki at 206.273.7993 or jkudritzki@uptimeinstitute.com.
roberto sanchez,RCDD
Perfil Activo y Creativo, S.A. de C.V.
México |
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