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3 minute readThe More You Know Series: Deduplication Explained

Reliant - Deduplication ExplainedWhat is data deduplication?

The process of data deduplication identifies duplicate data on a volume and eliminates it, ensuring that the remaining data is correct and complete. Deduplication eliminates redundant data leaving only a single copy for storage. When deduplication takes place, data remains indexed so it can be accessed again if required. With deduplication, required storage capacity can be reduced as only unique data is retained. Deduplication eliminates redundant data by deleting duplicate files and leaving only one copy to be stored.

How does deduplication benefit you?

Deduplication provides four main benefits: 1) improvement in data protection 2) increased speed of service 3) cost reduction and 4) enhanced data integrity.

Improved data protection

One unique copy of data means no erroneous data duplication and only a single source that ensures a high degree of integrity.

With deduplication, it’s possible to reduce as much as 90% of your physical storage need. You’ll also be saving on energy and space costs. In addition you can extend your 1st stage backup and retain the data for months at a time. Putting data on disk heightens restore service levels and leads to more recovery points.

Cost Reductions from deduplication

•  Less data is sent across a WAN for activities such as backups, recoveries, replication and disaster recovery.
•  Achieve lower cost of snapshots and increased disaster recovery points when you deduplicate your snapshot files.
•  In a virtual environment, you’ll be able to deduplicate the virtual machine disk files used to deploy virtual environments.

Choosing your approach

In the recent past, backup deduplication was just a nice-to-have feature. But now it’s a standard must-have.

There are many deduplication architectures available. Deduplication can take place at either the hardware or software level or can be a combination of the two. It can also be performed at the data source, on a backup target, or both.

When your data will be transmitted across a slow link, source-side deduplication can be helpful, as data’s compressed prior to transmission.

Target deduplication happens at the backup location or on a remote storage device. Target deduplication significantly reduces needed storage capacity.

Source and target deduplication can be used together. When multiple data sources are in use, redundancy should be eliminated. Target deduplication eliminates any cross-source redundancy, lessening backup storage costs.

In most cases, it’s advisable for enterprises to use deduplication technology, as it’s cost effective, stable and reliable. Let our team help you tailor your methods of deduplication to your organization’s specific requirements and help you decide which deduplication capabilities will benefit your storage environment and enhance your backup and recovery strategy.

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Reid Smith-Vaniz

by Reid Smith-Vaniz

Reid is the founder and CEO of Reliant Technology and for 14 years has pursued his mission to remove the pain associated with maintaining IT infrastructure. Reid writes on common challenges related to maintaining, servicing, tracking, budgeting, and upgrading technology.

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About Reliant Technology

As Data Center and storage experts, Reliant Technology is available to provide consultations and solutions to your server backup needs. Our experienced engineers and IT specialists are ready to help you determine the best option for your Data Center. If you have a topic you would like to see discussed, or if you would like to submit an article for possible publication, please, get in touch with us.