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Access "Think thin (provisioning)"

Published: 19 Oct 2012

It's an old story: Manual provisioning of storage is a source of tension between storage and application folks, and contributes to the poor capacity utilization that persists in many storage area networks (SANs). Those on the application side usually ask for more capacity than they need, says Craig Nunes, senior director of marketing at SAN array maker 3PAR, Fremont, CA. "The application guy thinks, 'If I get 500GB, I'll never need to take down my application,'" says Nunes. Storage admins, meanwhile, try to put off unnecessary disk purchases and push to allocate less than they're being asked for. In the end, the application usually wins out. In Nunes' experience, applications typically get 75% more capacity than they use. To this end, 3PAR users can license Thin Provisioning, which presents an application with a virtual volume of arbitrary size, but only allocates physical capacity to it as data is actually written. LeftHand Networks also supports this concept, says Tom Major, the firm's VP of marketing, although it doesn't have a name for it. Last month, ... Access >>>

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