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Data Centre / capability
Enterprise Storage
Storage is bought in terabytes and consumed in IOPS, and the two rarely run out together. Both are profiled on your own arrays across twelve months.
Most of the data sitting on your fastest tier has not been read in a year.
Capacity gets bought in a hurry, at the performance tier the last project needed, and then never moves down. The growth forecast in the proposal is usually a planning default. Your own last twelve months are a better guide.
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