Customers who just need software disk mirroring solution to enhance the availability of their disk storage systems without any other RAID features have the option of purchasing an OpenServer 6 Mirroring license. The Mirroring option for OpenServer 6 provides increased data availability by providing both fault tolerance against disk failures and faster data access. By adding a second disk to the system and adding Mirroring, administrators will automatically have access to their business-critical data should one disk fail.