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Access "Tiered storage: Heterogeneous vs. homogeneous"

Published: 17 Oct 2012

Heterogeneous tiered storage In this approach, different technologies are used at each tier. Equipment costs are low, but moving data between tiers can be problematic. Tiered storage is one of those topics I'm hearing a lot about lately. But actually moving to a tiered storage strategy can be tricky. How do you architect your solution? And how do you move data as its value changes? When most people think of storage tiers, they think of the same thing: Different types of storage arrays at different price points that are designated to hold different classes of data. Imagine an infrastructure that contains the components as shown in "Heterogeneous tiered storage" on this page. This mythical company has four tiers of storage in use from four different vendors. Such a strategy has been proposed by many, and it makes some sense. The tiers are divided according to technical functionality, price and service levels. If there's a benefit to mixing enterprise, midrange and internal storage, there's also clearly an underlying problem: How can you move data between tiers... Access >>>

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What's Inside

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      Tiered storage is a hot idea, but implementing it can be trickier than appears. This article defines the two different approaches--heterogeneous and homogeneous--and helps you choose the strategy you should employ.

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