ONStor is a leader in the design of file storage solutions that combine a petabyte-scalable open-storage architecture with innovative software to enable continuous data delivery. Unique data replication and resource pooling technologies deliver robust, cost-effective solutions that eliminate the backup window, provide instant data restore, and ensure full-time data availability. Designed to radically decrease the operational and capital costs of providing highly available file services, ONStor SAN filers will increase the return on the existing storage investment and provide unmatched flexibility for future growth. The vision of ONStor is to revolutionize storage with a new class of storage solution: the SAN filer. Connected to the LAN, this combined hardware/software solution functions as a file server. Users enjoy fast, exceptionally reliable access to files and directories. But the SAN filer itself contains no storage. All storage is maintained on external, third-party Fibre Channel arrays that are shared by multiple SAN filers.