Bye-bye, tapes: How to get the right disk backup appliance

Deduplicating backup appliances have become very popular, but choosing the right one means looking beyond deduplication

Although disk-to-disk backup methodologies have become incredibly popular over the past few years, the vast majority of enterprises -- large and small -- still use the same tape backups they implemented years ago. As time goes on, however, more and more old-school backup implementations will reach a breaking point where either capacity or performance can't get the job done.

When you realize that tape can't cut it any longer, you'll likely consider using a disk-based backup appliance, which you can get from many vendors, such as EMC Data Domain, Exagrid, and Quantum. But when choosing the right appliance, be careful: Most buyers focus on the most efficient deduplication engine, but that's only one difference to explore.

[ Get more expert advice on backup with InfoWorld's Deep Dive special reports on backup strategy, deduplication, and email archiving. | Sign up for InfoWorld's Data Explosion newsletter for news and updates on how to deal with growing volumes of data in the enterprise. ]

The deduplication engine gets IT's attention because the whole point of implementing dedupe is to shrink the amount of storage you need to hold your backups -- to save both on physical storage costs and to gain longer on-disk retention times. But capacity efficiency is a relatively small issue in practice. Most of the significant operational differences are based on when in the backup cycle that deduplication takes place and how crucially important scalability is achieved.

Inline vs. postprocess deduplication

This story, "Bye-bye, tapes: How to get the right disk backup appliance" was originally published by InfoWorld.

Top 10 Hot Internet of Things Startups
Join the discussion
Be the first to comment on this article. Our Commenting Policies