pentOS: New OS for Cloud Environments


Piston Cloud Computing Inc. has released Piston Enterprise OS (pentOS), an OpenStack-based cloud operating system for managing enterprise private cloud environments.

According to the announcement, Piston Enterprise OS is the first OpenStack distribution specifically focused on security and the easy operation of enterprise private clouds. The product’s “Null-Tier Architecture” combines storage, compute, and networking on every node to deliver both scalability and cost efficiency.

Piston Enterprise OS is the industry’s first implementation of CloudAudit, an open security standard for cloud and virtualized environments. The operating system is built on a custom Linux distribution and, according to the website, minimizes security exposure and optimizes performance. Additionally, pentOS is hardware vendor agnostic, with a modular design that allows integration with legacy and third-party technologies. The website states that pentOS is interoperable with other OpenStack-based public cloud environments, including Rackspace, Dell, Amazon, Internap, and AT&T.

With pricing starting at US$ 3,500 per server, Piston Enterprise OS is available now at


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