Team

Ceph’s Leadership Team

The leaders, innovators and talented intellects behind Ceph.

The Ceph Leadership Team is comprised of the key technical players who manage the community and oversee the advancement of Ceph.

Find out more about each key player and their area of expertise.

Component Leads

Sage WeilFounder / Architect
Neha OjhaRADOS
Casey BodleyRGW
Yehuda SadehRGW
Matt BenjaminRGW
Ilya DryomovRBD
Patrick DonnellyCephFS
Ernesto PuertaDashboard
Sebastian WagnerOrchestration / cephadm

Maintainers

Joao LuisAquarium
Jeff LaytonLinux Kernel Integration
David Gallowaybuild/test/lab
Mark NelsonPerformance / CBT
Zac DoverDocumentation
Mike PerezCommunity

Core Team

Sage Weil

Sage Weil

IRC: sage

Sage Weil is the founder and chief architect of Ceph, currently employed at Red Hat. He also was the creator of WebRing, a co-founder of Los Angeles-based hosting company DreamHost, and the founder and CTO of Inktank. Weil earned a Bachelor of Science in computer science from Harvey Mudd College in 2000 and completed his PhD in 2007 at the University of California, Santa Cruz working with Prof. Scott Brandt on consistency protocols, data distribution (CRUSH), and the metadata manager in the Ceph distributed file system. [wikipedia]

Neha Ojha

Neha Ojha

IRC: neha

Neha is a Principal Software Engineer at Red Hat. She is the project technical lead for the core team focusing on RADOS. Neha holds a Master’s degree in Computer Science from the University of California, Santa Cruz.

Yehuda Sadeh

Yehuda Sadeh

IRC: yehudasa

Yehuda has been involved in Ceph since 2008, and has been working on various related projects and subsystems. He is the original developer of the RADOS Gateway (RGW) which he currently co-leads as part of his work at Red Hat. He also worked on multiple other Ceph projects, such as the Linux kernel Ceph filesystem module, and RBD. Notable other Ceph modules that he initiated along with Sage Weil are the Linux kernel RBD module, the RADOS object classes, and the cephx authentication. Before joining Ceph, Yehuda worked in various start up companies, where he developed various storage and networking solutions. He holds a Bachelor degree in Communication Systems Engineering from Ben Gurion University, and a Master degree in Computer Engineering from Tel Aviv University.

Matt Benjamin

Matt Benjamin

IRC: mattbenjamin

Matt Benjamin has been working professionally with Linux and open source software since 1994. He is a contributor to a variety of open source software packages and tools. He co-founded The Linux Box corportation in Ann Arbor, mi, has held a developer position with Comshare, Inc, and has also been a consultant with Integrated Micro Systems. Matt holds a master’s degree from the University of Michigan, and a bachelor’s degree (Summa Cum Laude and Phi Beta Kappa) from the University of Missouri.

Ilya Dryomov

Ilya Dryomov

IRC: dis

Ilya has been working on Ceph since 2013, originally focusing on the Linux kernel RBD driver. Currently he serves as the technical lead for RBD and the maintainer of the Linux kernel client and also contributes to RADOS primarily in messenger and cephx areas. Previously he was involved with Btrfs and HAMMER file systems.

Patrick Donnelly

Patrick Donnelly

IRC: pdonnell

Patrick Donnelly is a software engineer at Red Hat, Inc. currently working on the Ceph distributed file system. In 2016 he completed his Ph.D. in computer science at the University of Notre Dame with a dissertation on the topic of file transfer management in active storage cluster file systems.

Ernesto Puerta

Ernesto Puerta

IRC: epuertat

Ernesto is the Ceph Dashboard component lead. He previously worked at Telefonica R∓D, Alcatel-Lucent, Bell Labs, and Nokia, where he first came to know about Ceph, for a Cloud Video Storage project back in 2015. After that stimulating experience, he joined Red Hat in 2018 and has since contributed to the Ceph Dashboard project, trying to apply his expertise as a Ceph user. Ernesto holds a master’s degree in Telecommunications Engineering from Universidad Politénica de Madrid and currently lives in that very city, famous for its fried calamari sandwich.

Joao Luis

Joao Luis

IRC: joao

Joao has been working on Ceph for a few years now, from the comfort of his home in mild-weathered Lisbon, Portugal. Since an early age found cephalopods to be enjoyable, and frequently makes meals out of them. Most of his time is spent trying to break the Monitors while sipping some not-at-all-obnoxious drink. Currently working at SUSE because the fluffy green chameleon mascot they give out at events really ties the desk together.

Sebastian Wagner

Sebastian Wagner

IRC: SebastianW

Sebastian Wagner joined Red Hat as a Senior Software Engineer in 2021. Previously he was at SUSE, where he started working on Ceph in 2016. He is the maintainer of the orchestrator module within the Ceph mgr. Sebastian achieved his master’s degree in computer science in 2014 at the University of Applied Science Wedel.

Maintainers

David Galloway

David Galloway

IRC: dgalloway

David started his IT career in 2010 as a Desktop Systems Specialist for Red Hat’s internal employee helpdesk. He became a Lab Admin for the Red Hat Engineering labs in Raleigh in 2013 and was promoted to Systems Administrator in 2015. David transferred to work on the Ceph upstream and downstream test labs full-time in early 2016 and is responsible for the daily care and feeding of the labs, applications, and tooling used for Ceph testing. He also manages the infrastructure that runs all of Ceph’s public-facing sites.

Mark Nelson

Mark Nelson

IRC: nhm

Mark joined the Ceph team in January 2012 and has 12 years of experience in distributed systems, HPC, and bioinformatics. Mark works on Ceph performance analysis and is the primary author of the Ceph Benchmarking Toolkit. He runs the weekly Ceph performance meeting and is currently focused on research and development of Ceph’s next-generation object store.

Jeff Layton

Jeff Layton

IRC: jlayton

Jeff joined the team in 2016 and is the maintainer for the Linux kernel CephFS driver. He has been involved in Linux and open source since the 1990's, and has worked at Red Hat since 2005 (with a brief interlude at a startup), with many contributions to the Linux kernel and other open-source projects. His focus is in filesystems, particularly networked and distributed filesystems.

Zac Dover

Zac Dover

IRC: zdover

Zac Dover is the Ceph upstream technical writer. He has been involved in open source software since the 1990s, and worked at Red Hat for seven years. Zac runs the monthly DocuBetter meeting and is (as of 2021) engaged in an ineffably tedious line-by-line edit of the Ceph documentation. Zac encourages you to write to him with your complaints about the Ceph documentation.

Mike Perez

Mike Perez

IRC: thingee

Mike is the Ceph Community Manager at Red Hat. Being a contributing member of OpenStack since 2010, he has served as a core developer for the OpenStack block storage project Cinder and as a PTL for the Kilo and Liberty releases. During some of this time, he worked for DreamHost in helping with their OpenStack public cloud, one of the first large production deployments of Ceph, and helping with integrating a variety of block storage solutions like Ceph in Cinder. He later joined the OpenStack Foundation to help with the success of cross-project initiatives and the overall quality and health of the project and community.

When Mike is not trying to make a computer work, he can be found: dancing, getting his hair done, playing with modular synthesizers, and doing karaoke for your entertainment.