Protecting your existing legacy storage investment with virtualization “do’s and don’ts”

It’s an undeniable fact that many customers, while they would love to use the highly advanced features of modern disk arrays, have already made a big investment in legacy storage. Sure, it doesn’t have all the great features, but it’s already there, frequently there’s a lot of it, and the maintenance isn’t expiring for another year or two so it’s not economically feasible to get rid of it.

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More FUD busting: Deduplication – is variable-block better than fixed-block, and should you care?

Before all the variable-block aficionados go up in arms, I freely admit variable-block deduplication may overall squeeze more dedupe out of your data.

I won’t go into a laborious explanation of variable vs fixed, but, in a nutshell, fixed-block deduplication means that data is split into equal chunks, each chunk given a signature, compared to a DB and the common chunks are not stored.

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