Darrell D. E. Long, Fellow IEEE, Fellow AAAS is the Director of the Storage Systems Research Center. He is Professor of Computer Science and holds the Kumar Malavalli Endowed Chair. His current research interests in the storage systems area include high performance storage systems, archival storage systems and view-based file systems. His research also includes computer system reliability, video-on-demand, applied machine learning, mobile computing and computer security.

Publications

2009

• Jehan-François Pâris, Ahmed Amer, Darrell D. E. Long, Thomas Schwarz, Evaluating the Impact of Irrecoverable Read Errors on Disk Array Reliability, Proceedings of the IEEE 15th Pacific Rim International Symposium on Dependable Computing (PRDC09), November 2009. [Reliable Storage]
• Deepavali Bhagwat, Kave Eshghi, Darrell D. E. Long, Mark Lillibridge, Extreme Binning: Scalable, Parallel Deduplication for Chunk-based File Backup , Proceedings of the 17th IEEE International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems (MASCOTS 2009), September 2009. [Deduplication]
• Avani Wildani, Thomas Schwarz, Ethan L. Miller, Darrell D. E. Long, Protecting Against Rare Event Failures in Archival Systems, Proceedings of the 17th IEEE International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems (MASCOTS 2009), September 2009. [Archival Storage] [Reliable Storage]
• Jehan-François Pâris, Ahmed Amer, Darrell D. E. Long, Using Storage Class Memories to Increase the Reliability of Two-Dimensional RAID Arrays, Proceedings of the 17th IEEE International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems (MASCOTS 2009), September 2009. [Reliable Storage]
• Kevin Greenan, Darrell D. E. Long, Ethan L. Miller, Thomas Schwarz, Avani Wildani, Building Flexible, Fault-Tolerant Flash-based Storage Systems, Proceedings of the Fifth Workshop on Hot Topics in System Dependability (HotDep 2009), June 2009. [Reliable Storage] [Storage Class Memories]
• Ian Adams, Darrell D. E. Long, Ethan L. Miller, Shankar Pasupathy, Mark W. Storer, Maximizing Efficiency By Trading Storage for Computation, Proceedings of the Workshop on Hot Topics in Cloud Computing (HotCloud ’09), June 2009. [Archival Storage] [Petabyte-Scale Storage]
• Kanchi Gopinath, Jon Elerath, Darrell D. E. Long, Reliability Modelling of Disk Subsystems with Probabilistic Model Checking, Technical Report UCSC-SSRC-09-05, May 2009. [Reliable Storage]
• Jehan-François Pâris, Ahmed Amer, Darrell D. E. Long, Using storage class memories to increase the reliability of two-dimensional RAID arrays, Technical Report UCSC-SSRC-09-04, April 2009. [Reliable Storage] [Storage Class Memories]
• Avani Wildani, Thomas Schwarz, Ethan L. Miller, Darrell D. E. Long, Protecting Against Rare Event Failures in Archival Systems, Technical Report UCSC-SSRC-09-03, April 2009. Preliminary version of a paper that appeared in MASCOTS 2009. [Archival Storage] [Reliable Storage]

2008

• Ahmed Amer, Jehan-François Pâris, Darrell D. E. Long, Thomas Schwarz, Progressive Parity-Based Hardening of Data Stores, Proceedings of the 27th International Performance of Computers and Communication Conference (IPCCC '08), December 2008, pages 34-42. [Reliable Storage]
• Kevin Greenan, Darrell D. E. Long, Ethan L. Miller, Thomas Schwarz, Jay Wylie, A Spin-Up Saved is Energy Earned: Achieving Power-Efficient, Erasure-Coded Storage, Proceedings of the Fourth Workshop on Hot Topics in System Dependability (HotDep '08), December 2008. [Archival Storage] [Reliable Storage]
• Mark W. Storer, Kevin Greenan, Ian Adams, Ethan L. Miller, Darrell D. E. Long, Kaladhar Voruganti, Logan: Automatic Management for Evolvable, Large-Scale, Archival Storage, Proceedings of the 2008 Petascale Data Storage Workshop (PDSW 08), November 2008. [Archival Storage]
• Mark W. Storer, Kevin Greenan, Darrell D. E. Long, Ethan L. Miller, Secure Data Deduplication, Proceedings of the 4th International Workshop on Storage Security and Survivability (StorageSS 2008), held in conjunction with the 15th ACM Conference on Computer and Communications Security (CCS 2008), October 2008. [Archival Storage] [Deduplication] [Secure File and Storage Systems]
• Ahmed Amer, Darrell D. E. Long, Jehan-François Pâris, Thomas Schwarz, Increased Reliability with SSPiRAL Data Layouts, Proceedings of the 16th International Symposium on Modeling, Analysis,and Simulation of Computer and Telecommunication Systems (MASCOTS 2008), September 2008, pages 189-198. [Reliable Storage]
• Neerja Bhatnagar, Kevin Greenan, Rosie Wacha, Ethan L. Miller, Darrell D. E. Long, Energy-Reliability Trade-offs in Sensor Networks, Proceedings of the Fifth Workshop on Embedded Networked Sensors (HotEmNets 2008), June 2008. [Reliable Storage]
• Jehan-François Pâris, Darrell D. E. Long, Thomas Schwarz, Ensuring Data Survival on Solid-State Storage Devices, Proceedings of the 1st International Workshop on Storage and I/O Virtualization, Performance, Energy, Evaluation and Dependability, February 2008. [Storage Class Memories]

2007

• Kevin Greenan, Ethan L. Miller, Thomas Schwarz, Darrell D. E. Long, Disaster Recovery Codes: Increasing Reliability with Large-Stripe Error Correction Codes, Proceedings of the 3rd International Workshop on Storage Security and Survivability (StorageSS 2007), held in conjunction with the 14th ACM Conference on Computer and Communications Security (CCS 2007), October 2007. [Archival Storage] [Petabyte-Scale Storage] [Reliable Storage]
• Kristal Pollack, Darrell D. E. Long, Richard Golding, Ralph Becker-Szendy, Benjamin C. Reed, Quota Enforcement for High-Performance Distributed Storage Systems, Proceedings of the 24th IEEE Conference on Mass Storage Systems and Technologies (MSST 2007), September 2007, pages 72-84. [Petabyte-Scale Storage] [Secure File and Storage Systems]
• Timothy Bisson, Scott A. Brandt, Darrell D. E. Long, A Hybrid Disk-Aware Spin-Down Algorithm with I/O Subsystem Support, Proceedings of the International Performance Conference on Computers and Communication (IPCCC '07), April 2007. Won Best Paper Award. [Storage Class Memories] [Effective Mobility]
• Jehan-François Pâris, Thomas Schwarz, Darrell D. E. Long, Self-Adaptive Two-Dimensional RAID Arrays, Proceedings of the International Performance Conference on Computers and Communication (IPCCC '07), April 2007. [Archival Storage] [Reliable Storage]

2006

• Sage Weil, Scott A. Brandt, Ethan L. Miller, Darrell D. E. Long, Carlos Maltzahn, Ceph: A Scalable, High-Performance Distributed File System, Proceedings of the 7th Conference on Operating Systems Design and Implementation (OSDI '06), November 2006. [Petabyte-Scale Storage]
• Jehan-François Pâris, Darrell D. E. Long, Using Device Diversity to Protect Data against Batch-Correlated Disk Failures, Proceedings of the 2nd ACM Workshop on Storage Security and Survivability (StorageSS 2006), October 2006. [Petabyte-Scale Storage] [Reliable Storage]
• Timothy Bisson, Scott A. Brandt, Darrell D. E. Long, NVCache: Increasing the effectiveness of disk spin-down algorithms with caching, Proceedings of the 14th International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems (MASCOTS 2006), September 2006. [Storage Class Memories] [Effective Mobility]
• Deepavali Bhagwat, Kristal Pollack, Darrell D. E. Long, Thomas Schwarz, Ethan L. Miller, Jehan-François Pâris, Providing High Reliability in a Minimum Redundancy Archival Storage System, Proceedings of the 14th IEEE International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems (MASCOTS '06), September 2006, pages 413-421. [Archival Storage] [Deduplication]
• Bo Hong, Scott A. Brandt, Darrell D. E. Long, Ethan L. Miller, Ying Lin, Using MEMS-Based Storage in Computer Systems—Device Modeling and Management, ACM Transactions on Storage, Vol. 2, No. 2, May 2006, pages 139-160. [MEMS-based Storage]
• Sage Weil, Feng Wang, Qin Xin, Scott A. Brandt, Ethan L. Miller, Darrell D. E. Long, Carlos Maltzahn, Ceph: A Scalable Object-Based Storage System, Technical Report UCSC-SSRC-06-01, March 2006. [Petabyte-Scale Storage]
• Bo Hong, Scott A. Brandt, Darrell D. E. Long, Thomas Schwarz, Feng Wang, Using MEMS-Based Storage in Computer Systems—MEMS Storage Architectures, ACM Transactions on Storage, February 2006, pages 1-21. [MEMS-based Storage]

2005

• Qin Xin, Ethan L. Miller, Thomas Schwarz, Darrell D. E. Long, Impact of Failure on Interconnection Networks in Large Storage Systems, Proceedings of the 22nd IEEE / 13th NASA Goddard Conference on Mass Storage Systems and Technologies, April 2005. [Petabyte-Scale Storage]
• Lawrence You, Kristal Pollack, Darrell D. E. Long, Deep Store: An Archival Storage System Architecture, Proceedings of the 21st International Conference on Data Engineering (ICDE '05), April 2005. [Archival Storage] [Deduplication]
• Bo Hong, Scott A. Brandt, Darrell D. E. Long, Feng Wang, Using MEMS-based Storage to Boost Disk Performance, IEEE / NASA Goddard Conference on Mass Storage Systems and Technologies (MSST 2005), April 2005, pages 202–209. [MEMS-based Storage]

2004

• Thomas Schwarz, Qin Xin, Ethan L. Miller, Darrell D. E. Long, Andy Hospodor, Spencer Ng, Disk Scrubbing in Large Archival Storage Systems, Proceedings of the 12th International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems (MASCOTS '04), October 2004, pages 409-418. Won Best Paper award. [Archival Storage] [Petabyte-Scale Storage] [Reliable Storage]
• Karl Brandt, Darrell D. E. Long, Ahmed Amer, Predicting When Not To Predict, Proceedings of the 12th Annual IEEE/ACM International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems (MASCOTS '04), October 2004. [Prediction and Grouping]
• Bo Hong, Thomas Schwarz, Scott A. Brandt, Darrell D. E. Long, Reliability of mems-based storage enclosures, roceedings of the 12th International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems (MASCOTS '04), October 2004, pages 571-579. [MEMS-based Storage]
• Feng Wang, Scott A. Brandt, Ethan L. Miller, Darrell D. E. Long, OBFS: A File System for Object-Based Storage Devices, Proceedings of the 21st IEEE / 12th NASA Goddard Conference on Mass Storage Systems and Technologies, April 2004, pages 283-300. [Petabyte-Scale Storage]
• Feng Wang, Qin Xin, Bo Hong, Scott A. Brandt, Ethan L. Miller, Darrell D. E. Long, Tyce T. Mclarty, File System Workload Analysis For Large Scientific Computing Applications, NASA/IEEE Conference on Mass Storage Systems and Technologies (MSST 2004), April 2004, pages 139–152. [Petabyte-Scale Storage]
• Purvi Shah, Jehan-François Pâris, Ahmed Amer, Darrell D. E. Long, Identifying Stable File Access Patterns, Proceedings of the Twelfth NASA Goddard/Twenty First IEEE Conference on Mass Storage Systems and Technologies (MSST '04), April 2004. [Prediction and Grouping]

2003

• Ismail Ari, Bo Hong, Ethan L. Miller, Scott A. Brandt, Darrell D. E. Long, Managing flash crowds on the Internet, Proceedings of the 11th International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems (MASCOTS '03), December 2003, pages 246–249. [Adaptive Caching]
• Bo Hong, Scott A. Brandt, Darrell D. E. Long, Ethan L. Miller, Karen Glocer, Zachary Peterson, Zone-based shortest positioning time first scheduling for MEMS-based storage devices, Proceedings of the 11th International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems (MASCOTS '03), December 2003, pages 104-113. [MEMS-based Storage]
• Jehan-François Pâris, Ahmed Amer, Darrell D. E. Long, A Stochastic Approach to File Access Prediction, Proceedings of the International Workshop on Storage Network Architecture and Parallel I/O (SNAPI '03), September 2003. [Prediction and Grouping]
• Scott A. Brandt, Ethan L. Miller, Darrell D. E. Long, Lan Xue, Efficient Metadata Management in Large Distributed File Systems, Proceedings of the 20th IEEE / 11th NASA Goddard Conference on Mass Storage Systems and Technologies (MSST 2003), April 2003, pages 290-298. [Petabyte-Scale Storage]
• Qin Xin, Ethan L. Miller, Thomas Schwarz, Darrell D. E. Long, Scott A. Brandt, Witold Litwin, Reliability Mechanisms for Very large Storage Systems, Proceedings of the 20th IEEE / 11th NASA Goddard Conference on Mass Storage Systems and Technologies, April 2003, pages 146-156. [Petabyte-Scale Storage] [Reliable Storage]
• Gary Whittle, Jehan-François Pâris, Ahmed Amer, Darrell D. E. Long, Randal Burns, Using Multiple Predictors to Improve the Accuracy of File Access Predictors, Proceedings of the Twentieth IEEE/Eleventh NASA Goddard Conference on Mass Storage Systems and Technologies (MSST '03), April 2003. [Prediction and Grouping]
• Ahmed Amer, Alison Luo, Newton Der, Darrell D. E. Long, Alexander Pang, Visualizing Cache Effects on I/O Workload Predictability, Proceedings of the International Performance Conference on Computers and Communication (IPCCC '03), April 2003. [Prediction and Grouping]

2002

• Ismail Ari, Ahmed Amer, Robert Gramacy, Ethan L. Miller, Scott A. Brandt, Darrell D. E. Long, ACME: Adaptive Caching Using Multiple Experts, Proceedings in Informatics 14(), December 2002, pages 143-158. [Adaptive Caching]
• Ying Lin, Scott A. Brandt, Darrell D. E. Long, Ethan L. Miller, Power conservation strategies for MEMS-based storage devices, Proceedings of the 10th International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems (MASCOTS '02), October 2002. [MEMS-based Storage]
• Ahmed Amer, Darrell D. E. Long, Randal Burns, Group-based management of distributed file caches, Proceedings of the 22nd International Conference on Distributed Computing Systems (ICDCS '02), July 2002. [Prediction and Grouping]
• Ahmed Amer, Darrell D. E. Long, Jehan-François Pâris, Randal Burns, File access prediction with adjustable accuracy, Proceedings of the International Performance Conference on Computers and Communication (IPCCC '02), April 2002. [Prediction and Grouping]
• Ismail Ari, Ahmed Amer, Ethan L. Miller, Scott A. Brandt, Darrell D. E. Long, Who is more adaptive? ACME: adaptive caching using multiple experts, Workshop on Distributed Data and Structures (WDAS 2002), March 2002. [Adaptive Caching]
• Zachary Peterson, Darrell D. E. Long, Scott A. Brandt, Data Placement Based on Seek Time Analysis of a MEMS-based Storage Device, Work-In-Progress Session of the Conference on File and Storage Technology (FAST 2002), January 2002. [MEMS-based Storage]
• Ethan L. Miller, Darrell D. E. Long, William E. Freeman, Benjamin C. Reed, Strong Security for Network-Attached Storage, Proceedings of the 2002 Conference on File and Storage Technologies (FAST), January 2002, pages 1-13. [Petabyte-Scale Storage] [Secure File and Storage Systems]

2001

• Tsozen Yeh, Darrell D. E. Long, Scott A. Brandt, Using program and user information to improve file prediction performance, Proceedings of the International Symposium on Performance Analysis of Systems and Software (ISPASS '01), November 2001, pages Proceedings. [Prediction and Grouping]
• Ahmed Amer, Darrell D. E. Long, Aggregating caches: A mechanism for implicit file prefetching, Proceedings of the 9th International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems (MASCOTS '01), August 2001, pages 293–301. [Prediction and Grouping]
• Tsozen Yeh, Darrell D. E. Long, Scott A. Brandt, Performing file prediction with a program-based successor model, Proceedings of the 9th International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems (MASCOTS '01), August 2001, pages 193–202. [Prediction and Grouping]
• Tsozen Yeh, Darrell D. E. Long, Scott A. Brandt, Caching Files with a Program-based Last N Successors, Workshop on Caching, Coherency and Consistency (WC3 '01), June 2001. [Prediction and Grouping]
• Tsozen Yeh, Darrell D. E. Long, Scott A. Brandt, Conserving Battery Energy through Making Fewer Incorrect File Predictions, IEEE Workshop on Power Management for Real-Time and Embedded Systems at the IEEE Real-Time Technology and Applications Symposium, May 2001. [Prediction and Grouping]
• Ethan L. Miller, Scott A. Brandt, Darrell D. E. Long, HeRMES: High-Performance Reliable MRAM-Enabled Storage, Proceedings of the 8th IEEE Workshop on Hot Topics in Operating Systems (HotOS-VIII), May 2001, pages 83-87. [Storage Class Memories]
• Ahmed Amer, Darrell D. E. Long, Noah: Low-cost file access prediction through pairs, Proceedings of the 20th IEEE International Performance, Computing and Communications Conference (IPCCC '01), April 2001, pages 27–33. [Prediction and Grouping]
• Ethan L. Miller, Darrell D. E. Long, William E. Freeman, Benjamin C. Reed, Strong security for distributed file systems, Proceedings of the 20th IEEE International Performance, Computing and Communications Conference (IPCCC '01), April 2001, pages 34–40. [Secure File and Storage Systems]
• Thomas Kroeger, Darrell D. E. Long, Design and implementation of a predictive file prefetching algorithm, Proceedings of the 2001 USENIX Annual Technical Conference, January 2001, pages 105–118. [Prediction and Grouping]
• Tsozen Yeh, Darrell D. E. Long, Scott A. Brandt, Increasing predictive accuracy through limited prefetching, Proceedings of Communications Networks and Distributed Systems Modeling and Simulation (CNDS 2002), January 2001, pages 131–138. [Prediction and Grouping]

1999

• Thomas Kroeger, Darrell D. E. Long, The case for efficient file access pattern modeling, Proceedings of the 7th IEEE Workshop on Hot Topics in Operating Systems (HotOS-VII), March 1999, pages 14–19. [Prediction and Grouping]

1997

• Thomas Kroeger, Darrell D. E. Long, Jeffrey C. Mogul, Exploring the bounds of web latency reduction from caching and prefetching, Proceedings of the USENIX Symposium on Internet Technologies and Systems (USITS '97), December 1997, pages 13–22. [Prediction and Grouping]

1996

• Thomas Kroeger, Darrell D. E. Long, Predicting file-system actions from prior events, Proceedings of the Winter 1996 USENIX Technical Conference, January 1996, pages 319–328. [Prediction and Grouping]