Data processing: database and file management or data structures – File or database maintenance – Database recovery
Reexamination Certificate
2011-04-19
2011-04-19
LeRoux, Etienne P (Department: 2161)
Data processing: database and file management or data structures
File or database maintenance
Database recovery
C711S202000, C711S161000
Reexamination Certificate
active
07930275
ABSTRACT:
The present invention relates to a system for restoring a file from a snapshot, where a version of the file exists in both an active file system and the snapshot. A twin inode is created in the active file system and comparisons are made between block pointers of the twin inode and the snapshot. If there is a match, the block pointer of the twin inode is moved to the active file system. If there is not a match, a determination is made whether the snapshot block pointer exists in the active file system. If the snapshot block pointer does not exist in the active file system, it is copied to the active file system. If it does exist, then the actual data block pointed to by the snapshot block pointer is copied to the active file system. In this way, a file may be restored without the need to always copy every individual data block or inode from the snapshot.
REFERENCES:
patent: 4570217 (1986-02-01), Allen et al.
patent: 5163131 (1992-11-01), Row et al.
patent: 5202979 (1993-04-01), Hillis et al.
patent: 5278979 (1994-01-01), Foster et al.
patent: 5355453 (1994-10-01), Row et al.
patent: 5485579 (1996-01-01), Hitz et al.
patent: 5802366 (1998-09-01), Row et al.
patent: 5819292 (1998-10-01), Hitz et al.
patent: 5931918 (1999-08-01), Row et al.
patent: 5941972 (1999-08-01), Hoese et al.
patent: 5963962 (1999-10-01), Hitz et al.
patent: 6065037 (2000-05-01), Hitz et al.
patent: 6173293 (2001-01-01), Thekkath et al.
patent: 6237001 (2001-05-01), Bamford et al.
patent: 6282570 (2001-08-01), Leung et al.
patent: 6289356 (2001-09-01), Hitz et al.
patent: 6425035 (2002-07-01), Hoese et al.
patent: 6748504 (2004-06-01), Sawdon et al.
patent: 6751635 (2004-06-01), Chen et al.
patent: 6868414 (2005-03-01), Khanna et al.
patent: 7051050 (2006-05-01), Chen et al.
patent: 7293097 (2007-11-01), Borr
patent: 2003/0126247 (2003-07-01), Strasser et al.
patent: 2003/0182301 (2003-09-01), Patterson et al.
patent: 2005/0033757 (2005-02-01), Greenblatt et al.
patent: 2006/0218210 (2006-09-01), Sarma et al.
US 5,741,972, 08/1999, Hoese et al. (withdrawn).
Akyurek, Sedat, Placing Replicated Data to Reduce Seek Delays, Department of Computer Science, University of Maryland, UMIACS-TR-91-121, CS-TR-2746, Aug. 1991.
Bitton, Dina, Disk Shadowing, Proceedings of the 14th VLDB Conference, LA, CA 1988.
Chaudhuri, Surajit, et al., Self-Tuning Technology in Microsoft SQL Server, Data Engineering Journal 22, Feb. 1999 pp. 20-27.
Chutani, Sailesh, et al., The Episode File System, In Proceedings of the USENIX Winter 1992.
Coyne, Robert A., et al., Storage Systems for National Information Assets, Proc. Supercomputing 92, Minneapolis, Nov. 1992, pp. 626-633.
Finlayson, Ross S., et al., Log Files: An Extended File Service Exploiting Write-Once Storage Department of Computer Science, Stanford University, Report No. STAN-CS-87-1177, Sep. 1987.
Gray, Jim, et al., The Recovery Manager of the System R Database Manager, ACM Computing Surveys, (13)2:223-242 1981.
Hecht, Matthew S., et al. Shadowed Management of Free Disk Pages with a Linked List, ACM Transactions on Database Systems, 8/4, Dec. 1983, pp. 503-514.
Howard, John, H. et al., Scale and Performance in a Distributed File System, Carnegie Mellon University, CMU-ITC-87-068, Aug. 1987.
Howard, John H., An Overview of the Andrew File System, Carnegie Mellon University, CMU-ITC-88-062 1988.
Howard, John, H. et al., Scale and Performance in a Distributed File Sytem, ACM Trans. Computer System, 6(1), Feb. 1988 pp. 51-81.
Kazar, Michael Leon, Synchronization and Caching Issues in the Andrew File System, Carnegie Mellon University, CMU-ITC-88-063, 1988.
Kazar, Michael L., et al., DEcorum File System Architectural Overview, USENIX Summer Conference, Anaheim, California, 1990.
Kemper, Alfons, et al., Performance Tuning for SAP R/3, Data Engineering Journal 22, Feb. 1999 pp. 33-40.
Kent, Jack et al., Optimizing Shadow Recovery Algorithms, IEEE Transactions on Software Engineering, 14( 2): 155-168 , Feb. 1988.
Kistler, et al., Disconnected Operation in the Coda File System, ACM Transactions on Computer Systems, vol. 10, No. 1, Feb. 1992, pp. 3-25.
Lorie, Raymond, A. Physical Integrity in a Large Segmented Database, ACM Trans. Database Syst., vol. 2, Mar. 1977, pp. 91-104.
Ousterhout, John et al., Beating the I/O Bottleneck: A Case for Log-Structured File Systems, Technical Report, Computer Science Division, Electrical Engineering and Computer Sciences, University of California at Berkeley, Oct. 30, 1988.
Patterson, D., et al., A Case for Redundant Arrays of Inexpensive Disks (RAID), Technical Report, CSD-87-391, Computer Science Division, Electrical Engineering and Computer Sciences, University of California at Berkeley 1987.
Patterson, D., et al., A Case for Redundant Arrays of Inexpensive Disks (RAID), SIGMOD International Conference on Management of Data, Chicago, IL, USA, Jun. 1-3, 1988, SIGMOD Record (17)3:109-16 Sep. 1988.
Peterson, Zachary Nathaniel Joseph, Data Placement for Copy-on-Write Using Virtual Contiguity, University of CA, Santa Cruz, Master's Thesis for the Department of Science in Computer Science; Sep. 2002.
Quinlan, Sean, A Cached WORM File System, Software-Practice and Experience, 21(12):1289-1299 1991.
Rosenblum, Mendel, et al., The LFS Storage Manager, Computer Science Division, Electrical Engineering And Computer Sciences, Univ. of CA, presented at Summer '90 USENIX Technical Conference, Anaheim, CA Jun. 1990.
Rosenblum, Mendel, et al. The Design and Implementation of a Log-Structured File System Jul. 24, 1991 pp. 1-15.
Rosenblum, Mendel, The Design and Implementation of a Log-Structured File System, 1992 pp. 1-93.
Rosenblum, Mendel, et al., The Design and Implementation of a Log-Structured File System, In Proceedings of ACM Transactions on Computer Systems, (10)1:26-52, Feb. 1992.
Schiefer, Berni, et al., DB2 Universal Database Performance Tuning, Data Engineering Journal 22, Feb. 1999 pp. 12-19.
Seltzer, Margo I., et al., Journaling Versus Soft Updates: Asynchronous Meta-Data Protection in File Systems, Proceedings of 200 USENIX Annual Technical Conference, Jun. 18-23, 2000.
Shasha, Dennis, Tuning Time Series Queries in Finance: Case Studies and Recommendations, Data Engineering Journal 22, Feb. 1999 pp. 41-47.
Sidebotham, Bob, Volumes: The Andrew File System Data Structuring Primitive, EEUG Conference Proceedings, Manchester, UK, Autumn 1986.
Subramanian, Muralidhar, et al., Performance Challenges in Object-Relational DBMSs, Data Engineering Journal 22, Feb. 1999 pp. 28-32.
Weikum, Gerhard, et al., Towards Self-Tuning Memory Management for Data Servers, Data Engineering Journal 22, Feb. 1999 pp. 3-11.
West, Michael, et al. The ITC Distributed File System: Prototype and Experience, Carnegie-Mellon University, Technical Report CMU-ITC-040, Mar. 1985.
Zayas, Edward R., AFS-3 Programmer's Reference: Architectural Overview, Transarc Corporation, Pittsburgh, PA, 1.0 edition 1991.
Hitz et al., “File System Design for an NFS File Server Appliance” TR 3002, Jul. 2001, 1-10.
Chen Raymond C.
Edwards John K.
Kahn Andy C.
Patel Kayuri
Cesari and McKenna LLP
LeRoux Etienne P
NetApp, Inc.
Rahman Mohammad N
LandOfFree
System and method for restoring and reconciling a single... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for restoring and reconciling a single..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for restoring and reconciling a single... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2707573