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Revivio Starts Talking Continuously: Page 2 of 3

Jack Scott, an analyst at Evaluator Group, says Revivio's time-stamp technology claims do sound impressive. However, he says, the startup hasn't made enough details available to really judge the merit of the product. "They're introducing a very important market requirement," he says. "They claim to have time-differentiated backup... If they can do what they claim, they should be successful in the marketplace."

Even though it may have some cool technology, Revivio will be entering a market already teeming with more established players, and at a time when customers are very wary of buying much of anything from startups. In addition to large industry players like EMC Corp. (NYSE: EMC), Hewlett-Packard Co. (NYSE: HPQ), and Storage Technology Corp. (StorageTek) (NYSE: STK), a long line of startups is dabbling in this space, including Radiant Data, FilesX Inc., TimeSpring, Avamar Inc., and Vyant Technologies Inc.

And there's some question of how "unique" Revivio's approach actually is: StorageTek recently announced an iSCSI-based continuous backup appliance called EchoView. Wait -- we thought startups were supposed to be the fast-moving innovators? (See StorageTek Hears an Echo.)

Revivio CEO Paul Lewis insists he doesn't feel threatened that such an established player as StorageTek is not only beating the startup to market with a continuous backup product but that it's doing so over iSCSI. When it launches in the fall, Revivio's product will only connect via Fibre Channel. "This is a validation of time-addressable storage," he says of StorageTek's announcement. "My guess is that there'll be room for a lot of different players in this space."

As for the many startups in this space, Wadsworth contends that Revivio is the only one that offers an enterprise-class product, scaling to hundreds of thousands of I/Os per second (IOPS). This is possible, he says, because the Revivio appliance nondisruptively sits outside the data path. The appliance connects into the storage fabric and time-stamps data as it's written to disk on the storage located behind the appliance. The product doesn't require that any new agent, drivers, or other software be loaded on the host, the company says.