Next Page: Teneros
In a world where corporate messages can generate legal exposure and even worldwide scandal, IT pros need to be sure they've got control. That's the idea behind six-year-old Teneros of Mountain View, Calif.
Teneros's stock in trade is its Application Continuity Appliance for Microsoft Exchange, which was unveiled in March 2005. The box sits between the Exchange Server and the network backbone, acting as a sort of uninterruptible power supply (UPS) for Exchange. The box sifts for corrupted data and then replicates Exchange in Teneros's own specialized instantiation of the program. If the appliance detects a problem with the Exchange server, it performs an immediate failover -- so smoothly that users won't detect the difference, Teneros claims.
Besides working with Exchange, Teneros's appliance replicates any backup, messaging, or unified communication app that relies on Microsoft journaling, including Blackberry, Goodlink, Microsoft Mobile, and Cisco Unity, to name a few.
On the downside, Teneros's one-box-per-Exchange-server model has established its reputation primarily as an SMB product up to now. Also, despite its support of virtualization within the box, there's no sign that Teneros plans to run as a virtual appliance anytime soon -- which may or may not affect its scaleability.