Coho Data is delivering web-scale storage for the cloud generation.

Inspired by the highly scalable, commodity-hardware based approaches of public clouds, the company is developing the first flash-tuned scale-out storage architecture designed for private clouds that delivers unparalleled performance and simplified management at public cloud capacity pricing.

The Coho Management Team

Ramana Jonnala
CEO / Co-Founder

Ramana has been a part of every significant, transformative industry trend since the 90s: He started his early career with VERITAS Software in building large-scale storage architectures, and then led the product team at Xensource in delivering the first open-source virtualization platform.

With a passion for building world-class teams that can drive these disruptive transformations, Ramana co-founded Coho Data to bring about the next era of the software-defined datacenter.

After Citrix acquired XenSource, Ramana served as VP of Citrix's Virtualization Management Division and led the product team in delivering the first bare metal hypervisor for client devices. These experiences convinced Ramana that at the core of a successful startup is an extremely talented technical team which thinks about solutions to problems in a very different way. He is excited to be leading Coho Data in its mission to redefine storage for the next generation of datacenters.

Andrew Warfield
CTO / Co-Founder

Andy is an established researcher in computer systems, specializing in storage, virtualization, and security. At Coho Data, Andy leads the technology vision and directs the engineering team in building elegant and functional systems that enable customers to focus on the data and applications instead of the underlying infrastructure that drives them.

As a PhD student at the University of Cambridge, he was one of the original authors of the Xen hypervisor, and has since done award-winning research in virtualization and high availability. At XenSource and Citrix Systems, he was the Technical Director for Storage & Emerging Technologies.

Keir Fraser
Chief Architect / Co-Founder

Previously a Co-Founder of XenSource and principal author of the Xen hypervisor, Keir brings his passion and expertise for designing lightweight but powerful software to Coho Data in his role as Chief Architect. He continues to be the lead maintainer of the Xen hypervisor, and leverages his deep background in virtualization to help drive the technical architecture for Coho Data's approach to the software-defined datacenter.

As a world-leading virtualization expert and the lead maintainer of Xen, Keir has advised major chip vendors on how to best support virtualization in their architectures, and has frequently provided expert consulting on the application of virtualization in emerging datacenter products. Keir was previously a faculty member of the University of Cambridge Computer Laboratory. His doctoral work on multi-processor concurrency received the 2004 British Computer Society Distinguished Dissertation Award.

Chris McBride
VP of Worldwide Sales

Chris has spent the last 27 years selling IT infrastructure to the Enterprise. For the last 15 years, Chris has focused on building and leading Global sales organizations for a number of successful technology start-ups in the network, chip and storage markets.

Prior to Coho Data, he lead the Global Sales and Service organization at BlueArc from 2007 - 2011 where his team reached third in global file system market share prior to the sale of BlueArc to Hitachi Data Systems.

Prior to BlueArc, Chris lead the global sales teams for Aarohi Communications, a storage silicon start-up that was acquired by Emulex, and McData Corporation which went public in 2000.

Chris's experience and track record of building and leading global sales teams that deliver solutions to the enterprise that help customers accelerate revenue, simplify management and reduce expense. This experience will enable Coho Data to accelerate the rate at which customers world wide leverage our disruptive web-scale storage technology to create competitive advantage.

He earned Masters of Science Degree from Auburn University.

Ramki Ramakrishnan
VP of Operations

Ramki is a seasoned manufacturing and operations executive, bringing over twenty five years of experience to Coho Data in managing Hardware, Manufacturing, Global Supply Chain Management and Support organizations for high tech products.

At Coho Data, Ramki is responsible for Hardware, Manufacturing, Supply Chain vendor management and Technical Support. Prior to Coho Data, Ramki served as VP of Operations at Infoblox, where he built out the manufacturing, Supply Chain and Global Warranty support capabilities to meet the company's rapid growth through a successful IPO in 2012.

Prior to Infoblox, Ramki was VP of Hardware and Manufacturing for Citrix Systems' Application Networking Group. Ramki's earlier roles include time at Networking and Semiconductor startup and public companies such as Cisco, Cirrus Logic, LSI and National Semiconductor.

Naren Goel
VP of Finance

Naren brings more than two decades of extensive financial management and operational experience to Coho Data.

As VP of Finance, he is responsible for overall financial strategy and all aspects of Finance and Accounting. Prior to joining Coho Data, he held a number of finance leadership positions in the Corporate and Business Unit Finance at VMware. Previously, he held senior Finance and Operational roles at Intelliden, RSA Security, Hyperion Solutions, DEC and NCR.

Coho Board Members

Peter Levine
General Partner, Andreessen Horowitz

Peter Levine is a partner at the venture capital firm Andreessen Horowitz. He was previously senior vice president and general manager of the Data Center and Cloud Division at Citrix where he was responsible for revenue, product management, business development and strategic direction. Peter joined Citrix in 2007 through its $500 million acquisition of XenSource, the leading provider of enterprise-class open source virtualization software, where he served as CEO, leading its 600 employees and establishing strategic agreements for the XenServer product family with customers such as Microsoft, Symantec, HP, NEC and Dell.

Prior to XenSource, Peter was a general partner at the Mayfield Fund. Before Mayfield, he was an early employee of VERITAS Software. During his 11-year tenure with the company, he helped to grow the organization to over 5,000 employees and more than $1.5 billion in revenue. Peter served as executive vice president and was responsible for worldwide marketing, OEM sales, business development and several product divisions. He began his career as a software engineer at Spectrum Software and was later a software engineer at MIT's Project Athena.

Peter holds a B.S. in Engineering from Boston University and attended the Sloan School of Management at MIT. He is currently a management lecturer at the Stanford Graduate School of Business and a former entrepreneurship lecturer at the Sloan School. Peter also serves on the board of Actifio, Bromium, Coho Data, DataGravity, GitHub, Instart Logic, Mixpanel and Udacity, and is on the board of trustees for Boston University and the National Outdoor Leadership Schoool (NOLS), and the Dean's Advisory board for MIT Engineering.

Follow Peter on his blog, and onTwitter

Frank Artale
Managing Partner, Ignition Partners

Frank Artale is a partner at the venture capital firm Ignition Partners.

Frank Artale joined Ignition as a managing partner in 2011, bringing deep operational experience and insights from a 29-year career in the software industry.

He previously was an executive at Citrix Systems, XenSource, VERITAS Software and Microsoft, and also served as co-founder and CEO of Consera Software (acquired by H-P).

Follow Frank on his blog, and on Twitter"

Sumant Mandal
Managing Director, March Capital Partners

Sumant Mandal is a cofounder and Managing Director at March Capital Partners in Santa Monica, CA.

He has 12-years of technology investment experience, and has generated multiple meaningful exits in companies he has either incubated or been the first institutional investor. Sumant has supported numerous companies’ attainment of market dominance, including The Rubicon Project (NYSE:RUBI), the world’s largest display advertising company, and BillDesk, India’s leading electronic payments company.

In addition to co-founding March Capital Partners, Sumant co-founded two leading technology incubators in the San Francisco Bay Area, The Hive and The Fabric. There, Sumant has supported projects in the sectors of Big Data, Cloud Computing, Advertising, Network Infrastructure, and Storage, and sits on the boards of Hive and Fabric incubated companies. In 2000, Sumant joined Clearstone Venture Partners in 2000 and as Managing Director, represents Clearstone on numerous company boards.

Sumant received his MBA from the Kellogg Graduate School of Management at Northwestern University, and a B.S. in Electrical Engineering from Michigan State University.

Coho Investors

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