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.

Pete Patel
VP of Operations

Pete Patel is a seasoned, hands-on operations executive with over 25 years of experience working with high technology engineering and manufacturing companies. Pete brings to Coho Data expertise in designing and implementing operations strategies for supply chain management, global distribution, quality improvement, ISO 9001 compliance, and lean manufacturing.

Prior to joining Coho Data, Pete served as Vice President of Operations at Wrightspeed, a startup company that develops digital powertrains. Previously though, he held multiple senior Operations roles in the telecommunications and networking industry at Network Equipment Technologies, Xirrus, Accelerated Networks (later acquired by Occam Networks), and Advanced Fibre Communications.

Suchit Kaura
VP of Engineering
Suchit Kaura is a distributed systems veteran with 25 years of experience in the industry. Prior to Coho Data he was running engineering teams in Santa Clara and India for Isilon. Before that he worked for BlueArc, Oracle, Tandem and Veritas where he was part of the leadership team that delivered products like OneFS(Isilon), HNAS (BlueArc) Oracle RAC, OCFS & Veritas Volume Manager. He has been a contributor to industry standards like parallel NFS part of NFSv4.1 RFC and NGIO forum precursor to Infiniband. Suchit has a bachelor’s degree in Engineering from IIT Roorkee.
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.

Garry Olah
VP of Business Development

Garry is a seasoned enterprise software veteran with over 20 years of experience. He has advised both startups and industry leaders on business development strategy and tactics developing strategic partnerships with enterprise giants like Microsoft, VMware, Citrix, Oracle, SAP, NetApp, Dell, Intel, and HP. Prior to joining Coho Data, Garry spent his career helping small companies become large and successful through strategic alliances.

He joined both BMC Software and Citrix in their early stages and was able to leverage his relationships and business development strategic approach to help grow these companies to become multi-billion dollar market leaders.

Olah builds relationships and fundamentally understands that Business Development in the enterprise is a chess match....most companies are playing checkers!

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

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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