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Vol. 6 No. 4 June 2007

Catching up with deduplication

Deduplication backup products differ in how they recognize and reduce duplicate data. Here's how to pick the product that will best fit into your environment. Backup has seen the future and it's disk. As the backup target gradually, but persistently, changes from tape to disk, data deduplication is becoming a key component of the backup process. Because vendors implement deduplication differently, the fear, uncertainty and doubt surrounding deduplication products has increased as have the questions about when to deploy what product. Deduplication resides in the backup process in two primary places: backup software and disk libraries. Asigra Inc.'s Televaulting, EMC Corp.'s Avamar and Symantec Corp.'s Veritas NetBackup PureDisk are backup software products that deduplicate data at the host level, minimizing the amount of data that needs to be sent over corporate networks to backup targets or replicated to disaster recovery sites. Disk libraries from Data Domain Inc., Diligent Technologies Corp., Quantum Corp. and Sepaton Inc. ...

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