Private cloud disaster recovery
ExaGrid offers a unique advantage for unidirectional replication
ExaGrid supports replication from the primary site to a secondary site for disaster recovery. The disaster recovery location can be a corporate second data center or a rented rack space in a third-party hosting facility.
On a weekly basis, about 2% of the data changes at the byte level, so only 1/50 of the data needs to be transferred. ExaGrid deduplication requires approximately 1/50 of the bandwidth compared to transferring non-duplicated backup data.
ExaGrid can also protect data from one another. If Site A sends backups to an ExaGrid appliance and Site B also sends backups to an ExaGrid appliance, ExaGrid can replicate the data that arrives at Site A to Site B and the data that arrives at Site B to Site A.
ExaGrid also supports up to 16 large data centers in a cross protection group with a master hub and 15 spokes. All spokes are replicated to a master hub disaster recovery site. The data that is backed up at the master disaster recovery site is replicated to one of the spoke sites for disaster recovery.
Over 50% of ExaGrid customers removed the tape both on-site and off-site using an on-site ExaGrid system for local backups and restores, and then replicated to an ExaGrid in a second location as a second data center for disaster recovery.
ExaGrid offers a unique advantage for unidirectional replication. If the second site is for disaster recovery only, the second site's ExaGrid can be configured to be used only as a repository. ExaGrid is asymmetric because the second site system can use the front-end landing zone and the repository disk as a repository. All other solutions are symmetrical, which requires the same size system on both sides of the replication. This unique ExaGrid approach enables a half-size system to be used at the second location, saving valuable savings compared to other solutions.