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Sage Weil
Weil,c. 2012
Born	(1978-03-17)March 17, 1978 (age 47)
Other names	Liewegas
Occupation	Software engineer
Employer	Civic Media Inc
Known for	Ceph

Sage Weil (born March 17, 1978) is the founder and chief architect ofCeph, a distributed storage platform. He also was the creator ofWebRing, a co-founder of Los Angeles–based hosting companyDreamHost, and the founder and CTO ofInktank. Weil additionally worked forRed Hat as the chief architect of the Ceph project. Weil is currently the CEO ofCivic Media Inc, a group owner of radio stations in the Midwest.

Weil earned a Bachelor of Science in computer science fromHarvey Mudd College in 2000 and completed his PhD in 2007 at theUniversity 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. In 2014, he won anO'Reilly Open Source Award.^[1]

In May 1994, Weil developed a script based on work byDenis Howe andGiraldo Hierro that became the technology behind WebRing. Weil launchedWebRing in June 1995 and eventually sold it toStarseed, Inc. in 1997.

As an undergraduate, Weil worked with fellowHarvey Mudd College studentsDallas Bethune, Josh Jones, and Michael Rodriguez to buildDreamHost. The site was registered and began hosting customers’ sites in 1997.DreamHost incubated and eventually spun offInktank.^[2]

In 2011, Weil co-foundedInktank with (CEO)Bryan Bogensberger as the CTO and technical architect. Inktank was a professional services and support company for the open sourceCeph file system.^[3] The company was initially funded byDreamHost^[2] and later supplemented byMark Shuttleworth.^[4] On 30 April 2014, it was announced thatRed Hat would acquire Inktank Storage for $175 Million.^[5]

In May 2015, he donated $3 million to the UC Santa Cruz to support research in open-source software. The Sage Weil Presidential Chair for Open Source Software at the university was also established.^[6]

1. Weil, Sage; Leung, Andrew; Brandt, Scott A.; Maltzahn, Carlos (2007), "RADOS: A Fast, Scalable, and Reliable Storage Service for Petabyte-scale Storage Clusters",Proceedings of the ACM Petascale Data Storage Workshop 2007 (PDSW 07)(pdf)
2. Weil, Sage; Brandt, Scott A.; Miller, Ethan L.; Maltzahn, Carlos (2006), "CRUSH: Controlled, Scalable, Decentralized Placement of Replicated Data",Proceedings of SC '06(pdf)
3. Weil, Sage; Brandt, Scott A.; Miller, Ethan L.; Maltzahn, Carlos; Long, Darrell D. E. (2006), "Ceph: A Scalable, High-Performance Distributed File System",Proceedings of the 7th Conference on Operating Systems Design and Implementation (OSDI '06)(pdf)
4. Weil, Sage; Wang, Feng; Xin, Qin; Brandt, Scott A.; Miller, Ethen L.; Long, Darrell D. E. (2006), "Ceph: A Scalable Object-Based Storage System",Technical Report UCSC-SSRC-06-01(pdf)
5. Weil, Sage; Pollack, Kristal; Brandt, Scott A.; Miller, Ethan L. (2004), "Dynamic Metadata Management for Petabyte-Scale File Systems",Proceedings of the 2004 ACM/IEEE Conference on Supercomputing (SC '04)(pdf)
6. Weil, Sage; Brandt, Scott A.; Miller, Ethan L. (2004), "Intelligent Metadata Management for a Petabyte-Scale File System",2nd Intelligent Storage Workshop(pdf)

• 1978 births
• Living people
• Harvey Mudd College alumni
• American software engineers

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