Cloud Storage Startup Nasuni Raises $25M

Network-attached storage (NAS) specialist Nasuni has raised another $25 million to further develop its version of hybrid cloud storage.

The round consists of a $17.5 million Series E and $7.5 million in venture debt financing, bringing Nasuni’s total funding to $80.5 million, the company announced yesterday. New investor Sigma Prime Ventures led the Series E, joined by all of the startup’s previous investors.

Along with Ctera and Panzura, Nasuni is one of a few startups pursuing a hybrid storage methodology, where cloud storage is coupled with on-premises caching of frequently accessed data. The company handles this through a combination of cloud gateways (built on commodity Dell servers) and file-managing software called UniFS.

UniFS backs up all data to the cloud, using that master copy for disaster recovery if necessary. The whole distributed setup can be controlled by one centralized database.

Nasuni’s customers include test-equipment firm Ixia and architecture giant Perkins & Will.

Based in Natick, Massachusetts, the company was founded in 2008 by Andres Rodriguez. He’s founded one other storage startup: Archivas, which was sold to Hitachi Data Systems in 2006.

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