Tiers of Availability and Power Quality

Prevailing Attitudes Tiers seen as progressive     - I’ll start at Tier 2 and work up to Tier 3 or, the higher the tier, the better I’ll be off Most critical infrastructures so far aim for Tier 3 or 4 When asked directly, IT professionals remain wary over gains in other dimensions (flexibility or efficiency) at the risk of reducing availability “Availability” is multidimensional concerns Cooling, Power, and physical infrastructure is affected by reliability (MTBF) and resilience/repair time (MTTR) Monitoring and Service components define MTTR Best Practice: Business metrics set the optimal Tier according to business’ appetite for risk / investment Developments in business objectives and dimensions will result in a review of level of Tier (Flexibility) Emerson are uniquely qualified to support high availability systems