Darrell Don Earl Long is an American

computer scientist A computer scientist is a person who is trained in the academic study of computer science. Computer scientists typically work on the theoretical side of computation, as opposed to the hardware side on which computer engineers mainly focus (al ...

and

computer engineer Computer engineering (CoE or CpE) is a branch of electrical engineering and computer science that integrates several fields of computer science and electronic engineering required to develop computer hardware and software. Computer engineers ...

who is

Kumar Malavalli Kumar Malavalli is an Indian American technology entrepreneur and philanthropist. In 1995, he founded Brocade Communications Systems with Paul Bonderson Jr. He currently serves as chairman of C3DNA Inc. and as a partner at VKRM Services, a boutique ...

Endowed Chair of Storage Systems Research and Distinguished Professor of

Engineering Engineering is the use of scientific method, scientific principles to design and build machines, structures, and other items, including bridges, tunnels, roads, vehicles, and buildings. The discipline of engineering encompasses a broad rang ...

at the

University of California, Santa Cruz The University of California, Santa Cruz (UC Santa Cruz or UCSC) is a public university, public Land-grant university, land-grant research university in Santa Cruz, California. It is one of the ten campuses in the University of California syste ...

.Faculty profile
, UCSC, retrieved 2012-12-15. He was editor-in-chief of the IEEE Letters of the

Computer Society The Institute of Electrical and Electronics Engineers (IEEE) is a 501(c)(3) professional association for electronic engineering and electrical engineering (and associated disciplines) with its corporate office in New York City and its operation ...

and was editor-in-chief of the ACM Transactions on Storage (TOS). In 2002, he was the founder of the Conference on File and Storage Technologies (FAST).

Biography

Long did his undergraduate studies at

San Diego State University San Diego State University (SDSU) is a public research university in San Diego, California. Founded in 1897 as San Diego Normal School, it is the third-oldest university and southernmost in the 23-member California State University (CSU) system ...

, graduating in 1984, and went on to graduate studies at the

University of California, San Diego The University of California, San Diego (UC San Diego or colloquially, UCSD) is a public university, public Land-grant university, land-grant research university in San Diego, California. Established in 1960 near the pre-existing Scripps Insti ...

, earning a Ph.D. in 1988 under the supervision of Jehan-François Pâris. While in graduate school, he worked as a lecturer in mathematics at

and in computer science at the

. After earning his Ph.D. he joined the faculty of the

. At UCSC, he has been associate dean for research and graduate studies in the

Jack Baskin School of Engineering The Jack Baskin School of Engineering, known simply as Baskin Engineering, is the school of engineering at the University of California, Santa Cruz. It consists of six departments: Applied Mathematics, Biomolecular Engineering, Computational Med ...

, and he is Director ''emeritus'' of the Storage Systems Research Center.UCSC Storage Systems Research Center faculty
, retrieved 2012-12-15. During his tenure at the SSRC, seven women earned Ph.D's in the program, which is noteworthy in the field of Computer Science, where women are significantly underrepresented. Long has held visiting faculty positions at the Université Paris–Dauphine (Paris IX), the

Conservatoire National des Arts et Métiers A music school is an educational institution specialized in the study, training, and research of music. Such an institution can also be known as a school of music, music academy, music faculty, college of music, music department (of a larger in ...

, the Université Paris–Descartes (Paris V), Sorbonne Université (Pierre et Marie Curie, Paris VI), the

University of Technology, Sydney The University of Technology Sydney (UTS) is a public research university located in Sydney, New South Wales, Australia. Although its origins are said to trace back to the 1830s, the university was founded in its current form in 1988. As of 2021 ...

, the Center for Communications Research, the United States

Naval Postgraduate School The Naval Postgraduate School (NPS) is a public graduate school operated by the United States Navy and located in Monterey, California. It offers master’s and doctoral degrees in more than 70 fields of study to the U.S. Armed Forces, DOD ci ...

and is Professor ''ad Honorem'' de la Universidad Católica del Uruguay. He is an Associate Member of the European Organization for Nuclear Research (

CERN The European Organization for Nuclear Research, known as CERN (; ; ), is an intergovernmental organization that operates the largest particle physics laboratory in the world. Established in 1954, it is based in a northwestern suburb of Gene ...

). Long served as the Vice-Chair and then Chair of the University of California Committee on Research Policy. He has served on the University of California President’s Council on the National Laboratories, and on the Science & Technology, National Security and Intelligence committees for those laboratories. He served for many years on the National Research Council's Standing Committee on Technology Insight-Gauge, Evaluate, and Review (TIGER), and the Committee on Defense Intelligence Agency Technology Forecasts and Reviews. He served on the National Research Council's Committee on Science and Technology for Defense Warning. He was a member of the United States Army Laboratory Assessment Group (ALAG) and the United States Army Technology Objectives review panel. He is a member of the Intelligence Science and Technology Experts Group (ISTEG) for the National Academies of Sciences, Engineering and Medicine. He is a member of the advisory group

JASON Jason ( ; ) was an ancient Greek mythological hero and leader of the Argonauts, whose quest for the Golden Fleece featured in Greek literature. He was the son of Aeson, the rightful king of Iolcos. He was married to the sorceress Medea. He w ...

Research

Long's research interests include

computer data storage Computer data storage is a technology consisting of computer components and Data storage, recording media that are used to retain digital data (computing), data. It is a core function and fundamental component of computers. The central pro ...

operating system An operating system (OS) is system software that manages computer hardware, software resources, and provides common services for computer programs. Time-sharing operating systems schedule tasks for efficient use of the system and may also in ...

distributed computing A distributed system is a system whose components are located on different computer network, networked computers, which communicate and coordinate their actions by message passing, passing messages to one another from any system. Distributed com ...

, and

computer security Computer security, cybersecurity (cyber security), or information technology security (IT security) is the protection of computer systems and networks from attack by malicious actors that may result in unauthorized information disclosure, the ...

. In 1991, Long worked on the idea of storing metadata separately from data in the Swift file system. This idea became a central design concept in subsequent distributed file and storage systems, including two projects on which Long was a major contributor: IBM TotalStorage/SAN (Storage Tank) and Ceph. The Ceph.

distributed file system A clustered file system is a file system which is shared by being simultaneously mounted on multiple servers. There are several approaches to clustering, most of which do not employ a clustered file system (only direct attached storage for ...

was first designed and implemented in the Storage Systems Research Center in 2006 by

Sage Weil Sage Weil (born March 17, 1978) is the founder and chief architect of Ceph, a distributed storage platform. He also was the creator of WebRing, a co-founder of Los Angeles-based hosting company DreamHost, and the founder and CTO of Inktank. We ...

and other members of the SSRC under the direction of Long, Professor Ethan Miller, Professor Scott Brandt, and Dr. Carlos Maltzahn. Long has done further research on metadata for exascale file systems and security for exascale file systems. Long worked on

data deduplication In computing, data deduplication is a technique for eliminating duplicate copies of repeating data. Successful implementation of the technique can improve storage utilization, which may in turn lower capital expenditure by reducing the overall amou ...

, having worked on deduplication and

delta compression Delta encoding is a way of storing or transmitting data in the form of '' differences'' (deltas) between sequential data rather than complete files; more generally this is known as data differencing. Delta encoding is sometimes called delta compre ...

for reducing the storage demands for backup and long-term data storage. He also contributed to techniques for scaling deduplication for very large backup systems. Beyond these areas, Long has written research papers on web caching, power-aware

hard disk A hard disk drive (HDD), hard disk, hard drive, or fixed disk is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage with one or more rigid rapidly rotating platters coated with magnet ...

management in

mobile computing Mobile computing is human–computer interaction in which a computer is expected to be transported during normal usage, which allows for the transmission of data, voice, and video. Mobile computing involves mobile communication, mobile hardware ...

, and low-

bandwidth Bandwidth commonly refers to: * Bandwidth (signal processing) or ''analog bandwidth'', ''frequency bandwidth'', or ''radio bandwidth'', a measure of the width of a frequency range * Bandwidth (computing), the rate of data transfer, bit rate or thr ...

multicast In computer networking, multicast is group communication where data transmission is addressed to a group of destination computers simultaneously. Multicast can be one-to-many or many-to-many distribution. Multicast should not be confused with ...

techniques for

video on demand Video on demand (VOD) is a media distribution system that allows users to access videos without a traditional video playback device and the constraints of a typical static broadcasting schedule. In the 20th century, broadcasting in the form of o ...

, among other topics.

Awards and honors

Long became an

IEEE Fellow As of 2019, the Institute of Electrical and Electronics Engineers (IEEE) has 5,082 members designated Fellow, each of whom is associated with one of the 41 societies under the IEEE. The Fellow grade of membership is the highest level of membershi ...

in 2006 "for contributions to storage systems architecture and performance".List of IEEE Fellows
, retrieved 2012-12-15. In 2008 he was inducted as a fellow of the

American Association for the Advancement of Science The American Association for the Advancement of Science (AAAS) is an American international non-profit organization with the stated goals of promoting cooperation among scientists, defending scientific freedom, encouraging scientific respons ...

.Three USC professors elected AAAS Fellows
, Tim Stephens, UCSC University News, December 17, 2008, retrieved 2012-02-25.

Biography

Research

Awards and honors

References

External links