Only these byte-level changes are replicated to one or more servers over standard network connections. Sequential Transfer-Replication follows the same write sequence within and across multiple files, providing complete data integrity at all times. NSI Software provides seamless configuration, control and administration of data availability and protection. Replication occurs continuously over any shared or private IP-based LAN, WAN, or SAN connection. In the event of a disaster, Double-Take's failover capabilities allow a secondary server to stand in automatically for the primary server.
Operations resume with minimal interruption and confusion.
Most system users are unaware when a failover occurs. Unlike tape backups, which run periodically to provide a archival data at the expense of hours or days for retrieval, Double-Take continuously captures the most recent data and makes it immediately available. It allows complete redundancy of the data, storage, and servers. It can even protect companies against site-level failures. It goes beyond a company's need for server failover and adds data replication, backup, and data-distribution capabilities, simply and easily.