OCTOPUSHA+
OctopusHA+ v3.1 is tailored to provide high availability and reliability for Microsoft Exchange environments on the Windows NT platform. Octopus can mirror a database, capturing real-time messages as they are delivered and safeguard them on a target server. In the event the Microsoft Exchange server fails, Octopus can also switch users over to a secondary server, without requiring a reboot of the server. This solution promotes uninterrupted business communications and prevents unplanned downtime, which could adversely effect end user productivity.
QUALIX