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Access "Users want more from tiered storage"

Published: 30 Oct 2012

Storage vendors are building block-based tiered storage into their products, but some users are asking why the combination of block-level granularity and file-level automation isn't a part of large, high-end, heterogeneous tiered storage systems. "Tiering data for performance management is a struggle when it crosses the bounds of a controller," says Jeff Boles, IT manager for the City of Mesa, AZ. "Block-level data in and of itself is never going to be completely indicative of access patterns because that's not the way we work." Vendors say products simply don't exist today that could keep a single block within a larger file on primary storage while sending the rest of the file, block by block, to a separate file system on a separate physical tier, bringing the blocks back together when different parts of the file are accessed again. Midrange arrays like Compellent Technologies' Storage Center SAN and EqualLogic's PS Series have begun baking in block-level, tiered storage functions and nearly every high-end storage vendor offers a product that will ... Access >>>

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