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Vol. 10 Num. 6 August 2011

The state of backup dedupe

In a relatively short time, data deduplication has revolutionized disk-based backup, but the technology is still evolving with new applications and more choices than ever. Data deduplication technology identifies and eliminates redundant data segments so that backups consume significantly less storage capacity. It lets organizations hold onto months of backup data to ensure rapid restores (better recovery time objective [RTO]) and lets them back up more frequently to create more recovery points (better recovery point objective [RPO]). Companies also save money by using less disk capacity and by optimizing network bandwidth. Deduplication was first adopted by companies with tight backup windows and those looking to reduce tape usage. The primary considerations were seamless integration with incumbent backup apps and processes, and ease of implementation. In the next wave of adoption, concerns shifted to scaling capacity and performance. Vendors beefed up disk capacity, performance, network connectivity and system interfaces, and ...

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    Storage technologies may sometimes seem a little stodgy and out of date, but there’s plenty of technical development going on at both the big storage vendors and smaller upstarts.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

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