Monday, a startup called ParaScale is launching a private beta of a commercial-grade storage software that uses a similar approach to Google’s own in-house system. (ParaScale nearly made it into TechCrunch50 this year, but was just shy of making the cut, largely because it was no longer in stealth mode). It offers a file system that can run on a cluster of any off-the-shelf Linux servers.

Companies can keep adding as many servers as they need, with each one acting as a redundant node. The software runs on the cluster as whole, treating it as one giant file system. This creates private cloud storage that companies can host themselves inside their own firewalls. ParaScale CEO Sajai Krishnan says customers can expect to pay about $1 per gigabyte, depending on their server costs.