ExaGrid: Many companies are moving to disk-based backup to shorten backup windows and to gain faster and more reliable backups and restores. Because ExaGrid’s disk-based backup solution sits in the same data center as application servers and primary storage, backup data is inherently secured by network and data center security, leveraging the same security that is used for the rest of the network components. Additionally, organizations can choose to use ExaGrid’s disk-based backup system at a second site to supplement or eliminate offsite tapes and to avoid complex encryption technology. The second site acts as a live disk-based repository, providing fast recovery in the event of a disaster, while also taking advantage of existing network and data center security. All data transfers between the primary site and the offsite disk-based system is over a secure, encrypted VPN.
ExaGrid’s disk-based backup system incorporates data reduction, so only the changes are moved from backup to backup, and backups can be kept up to date offsite with WAN efficiency. Most backup data changes about 2% from backup to backup,
so only 1/50th of the data will move across the WAN.