WAFS disconnected-mode read-write access

Details WAFS disconnected-mode read-write access WAFS disconnected-mode read-write access

2007-06-15

2010-06-08

Jean, Frantz B (Department: 2454)

Electrical computers and digital processing systems: multicomput

Remote data accessing

Accessing a remote server

C709S217000, C709S223000, C707S793000, C707S793000

Reexamination Certificate

active

07734733

ABSTRACT:
The present invention, in particular embodiments, provides methods, apparatuses and systems directed to providing a Wide Area File System that is robust against network connectivity issues. In particular implementations, the present invention provides a WAFS disconnected-mode read-write access that provides for a more seamless user experience against WAN or other network connectivity failures. Specific embodiments provide for management, at a network device such as an EFG node, of file objects previously opened during a connected state with a remote file server appliance, creation of new file objects during a disconnected state and re-synchronization of those file objects (data and meta-data) when a connection becomes available.

REFERENCES:
patent: 5452447 (1995-09-01), Nelson et al.
patent: 5594863 (1997-01-01), Stiles
patent: 5611049 (1997-03-01), Pitts
patent: 5634122 (1997-05-01), Loucks et al.
patent: 5689706 (1997-11-01), Rao et al.
patent: 5706435 (1998-01-01), Barbara et al.
patent: 5717897 (1998-02-01), McCrory
patent: 5740370 (1998-04-01), Battersby et al.
patent: 5805809 (1998-09-01), Singh et al.
patent: 5864837 (1999-01-01), Maimone
patent: 5878218 (1999-03-01), Maddalozzo et al.
patent: 5881229 (1999-03-01), Singh et al.
patent: 6012085 (2000-01-01), Yohe et al.
patent: 6049874 (2000-04-01), McClain et al.
patent: 6119151 (2000-09-01), Cantrell et al.
patent: 6122629 (2000-09-01), Walker et al.
patent: 6243760 (2001-06-01), Armbruster et al.
patent: 6366952 (2002-04-01), Pitts
patent: 6397307 (2002-05-01), Ohran
patent: 6453404 (2002-09-01), Bereznyi et al.
patent: 6505241 (2003-01-01), Pitts
patent: 6587921 (2003-07-01), Chiu et al.
patent: 6597956 (2003-07-01), Aziz et al.
patent: 6609183 (2003-08-01), Ohran
patent: 6944676 (2005-09-01), Armbruster et al.
patent: 2001/0011300 (2001-08-01), Pitts
patent: 2001/0016896 (2001-08-01), Pitts
patent: 2001/0047482 (2001-11-01), Harris et al.
patent: 2001/0052058 (2001-12-01), Ohran
patent: 2002/0083111 (2002-06-01), Row et al.
patent: 2002/0144068 (2002-10-01), Ohran
patent: 2004/0260768 (2004-12-01), Mizuno
patent: 2007/0260717 (2007-11-01), Kano
Carey, M.J., M.J. Franklin, M. Livny and E.J. Shekita, “Data Caching Tradeoffs in Client-Server DBMS Architectures”, Proceedings of the 1991 ACM SIGMOD International Conference on Management of Data, Feb. 1991, pp. 357-366.
Cox, A.L. and R.J. Fowler, “Adaptive Cache Coherency for Detecting Migratory Shared Data”, Proceedings of the 20thAnnual International Symposium on Computer Architecture, 1993, pp. 98-108.
Cortes, T., S. Girona and J. Labarta, “Avoiding the Cache Coherence Problem in a Parallel/Distributed File System,” Proceedings of the High-Performance Computing and Networking Conference, Apr. 1997, pp. 860-869.
Cortes, T., S. Girona and J. Labarta, “Design Issues of a Cooperative Cache with no Coherence Problems,” Proceedings of the 5thWorkshop on I/O in Parallel and Distributed Systems, Nov. 17, 1997; pp. 37-46.
Wang, J. “A Survey of Web Caching Schemes for the Internet”, ACM SIGCOMM Computer Communication Review, vol. 29, No. 5, Oct. 1999, pp. 36-46.
Wu, K-L and P.S. Yu, “Local Replication for Proxy Web Caches with Hash Routing,” Proceedings of the CIKM '99, Nov. 1999, pp. 69-76.
Luo, Q., et al., “Middle-Tier Database Caching for e-Business,” Proceedings of the 2002 ACM SIGMOD Conference, Jun. 4-6, 2002, pp. 600-611.
Gray, C.G. and D.R. Cheriton. “Leases: An Efficient Fault-Tolerant Mechanism for Distributed File Cache Consistency”, Proceedings of the 12thACM Symposium on Operating Systems Principles, pp. 202-210, Nov. 1989.
Satyanarayanan, M., et al., “Coda File System User and System Administrators Manual”, Carnegie Mellon University, Aug. 1997.
Braam, P.J. and P.A. Nelson, “Removing Bottlenecks in Distributed Filesystems: Coda and InterMezzo as Examples”. Proceeding of the Linux Expo 1999, May 1999.
Braam, P.J., M. Callahan and P. Schwan, “The InterMezzo File System”, Proceedings of the Perl Conference 3, O'Reilly Open Source Convention, Aug. 1999.
Phatak, S.H., and B.R. Badrinath, “Data Partitioning for Disconnected Client Server Databases”, Proceedings of the 1stACM International Workshop on Data Engineering and Wireless Mobile Access, pp. 102-109, 1999.
Tierney B.L., et al., “A Network-Aware Distributed Storage Cache for Data Intensive Environments”, Proceedings of the 8thIEEE International Symposium on High Performance Distributed Computing, pp. 185-193, 1999.
Braam, P.J., “InterMezzo: File Synchronization with InterSync”, Carnegie Mellon University, Mar. 20, 2002.
Tacit Networks, Inc. (“Tacit Networks Delivers LAN-Speed Access to Data over WANs”) press release, Dec. 9, 2002.
Satyanarayanan, M., “Coda: A Highly Available File System for a Distributed Workstation Environment (#13)”, Proceedings of the Second IEEE Workshop on Workstaton Operating Systems, Pacific Grove, CA, Sep. 1989.
Braam, P.J. “The Coda Distributed File System (#74)”, Linux Journal, No. 50, Jun. 1998.

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