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Vol. 10 Num. 6 August 2011

Storage virtualization: It’s ready, are you?

Adoption of storage virtualization has been accelerating as some of the early obstacles to implementation have fallen by the wayside. There’s a wide choice of mature products whether you decide to deploy storage virtualization at the array or in the network. While there may be some dispute over an exact definition, storage virtualization is generally considered technology that provides a flexible, logical arrangement of data storage capacity to users while abstracting the physical location from them. It’s a software layer that intercepts I/O requests to the logical capacity and maps them to the correct physical locations. The most basic implementation of storage virtualization is at the host level, where a logical volume manager allows the simple provisioning of storage capacity to apps and users. While also implemented with file storage systems, block storage virtualization is more commonly implemented due to the complexity of LUN management and the requirements for flexibility in storage provisioning, especially in multi-user ...

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Features in this issue

  • New trends in storage

    by  Stephen Foskett

    Storage technologies may sometimes seem a little stodgy and out of date, but there’s plenty of technical development going on at both the big storage vendors and smaller upstarts.

Columns in this issue

  • The need for speed

    by  Alan R. Earls

    An analysis of the some of the leading vendors in the TCP/IP offload market.

  • No excuse for lax laptop backup

    by  Rich Castagna

    Too expensive, too much extra work and not enough integration were legitimate complaints about laptop backup a few years ago. But those excuses just don’t cut it anymore.

  • Hybrid clouds on the horizon

    by  Jeff Byrne, Contributor

    A few notable glitches have soured some users on cloud storage services, but a hybrid approach that integrates public and private storage may ultimately convince cloud skeptics.