Disk Storage: How Much is that Doggie in the Window?

The traditional approach of purchasing storage is broken. Comparing the purchase cost per terabyte of one storage array to another misses over 70% of the potential costs and leads to two classic storage management pitfalls. Managers who purchase new storage often focus too much of their attention on the upfront cost of buying disk and inherit a cost structure that requires ever-increasing expenditures on advanced functions, storage software, and support and maintenance. Perhaps even more at risk are those managers who elect to stay with their existing environment, unaware that a more cost-effective storage solution is available to them. This second predicament is exacerbated further by the fact that the financial savings from consolidation or migration do not show up in traditional storage expenditure categories such as disk drives, disk expansion units, and disk arrays.

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