Financial Check: Actual storage utilization and your bottom line
By Tarry Singh at 27 January, 2009, 3:33 am
Good whitepaper to get a reality check from Pillar Systems.
Even as IT budgets tighten, the growth of corporate information and data mining (the utilization of information for business intelligence) mean that the need for storage is increasing faster than ever. You may have realized efficiencies with server virtualization, but your array utilization is likely to be very poor (on average less than 40%). And, while there are ways to improve your utilization rate (use more existing capacity), the resulting performance impact on your applications tend to make those approaches unrealistic (using the capacity will create contention with the existing applications). Thin provisioning can help, but as virtual capacity becomes utilized, you need to add physical capacity to improve application performance; the vicious cycle has no end.
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