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ExaGrid Systems, Inc. is a disk-based backup hardware company that was founded in 2002 and is headquartered in Westborough, Massachusetts, with several satellite offices throughout the United States, Europe and Asia. The company serves customers in a variety of major industry sectors. ()

The ExaGrid disk-based backup system

The ExaGrid system is a disk-based backup device that works with existing backup applications (see List of backup software). ExaGrid combines the use of compression and byte-level data de-duplication (sometimes called Capacity optimization) to minimize the amount of data stored. This works by using standard data compression for the most recent backups, along with saving only byte-level changes from backup to backup for all previous backups. This approach can reduce the disk space required for disk-based backup storage by 20 to 1.

A second system can be installed at another location to supplement or eliminate offsite tapes, providing disk-based recovery in the event of a disaster. The byte-level data de-duplication technology only moves changes over the WAN, reducing WAN bandwidth requirements.

ExaGrid derives its name in part from the internal Grid computing architecture used. ExaGrid servers virtualize into the GRID to present a single pool of memory, processor and disk storage. This allows the system to grow as backup data grows.

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