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Server Refresh Strategy: How Often

IT Efficiency Metrics

IT Efficiency Metrics
The clear answer to today’s IT challenges is to increase IT efficiency throughout the infrastructure, from the desktop to the data center. This Wiki is intended to provide a forum where efficiency metrics, goals and guidelines can be shared.

Data Center Performance Metrics

Metrics concerning the performance efficiency of hardware, software, processes and people.
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Server Refresh Strategy: How Often

Data Center Performance Metrics

GOAL or METRIC: Refresh servers after four years

RATIONALE: Starting in the fourth year of the life of a server, support costs increase dramatically: about 40% more in year four, 200% more in year five, 270% in year six and about 400% in year seven. Best-of-breed organizations use a manageable refresh cycle of every four years (begin retiring at year four) and/or 20% hardware refresh per year (20% of the data center replaced each year).

SIDE NOTES

  • Dell’s own IT uses the 20% per year, “constant refresh” strategy so that the benefits of new technology can be realized more quickly, and the oldest technology is retired in the most cost-effective and least disruptive way.

SOURCE:  IDC: Managing IT Infrastructure Renewal: A Business Framework to Reduce Server and Storage Costs: September 2010


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Comments
  • Its hard to get management to follow a 5 year SDLC though when budgets are cut and you are looking at layoffs.