CA2312492A1 - Multi-protocol unified file-locking - Google Patents

Multi-protocol unified file-locking Download PDF

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Publication number
CA2312492A1
CA2312492A1 CA002312492A CA2312492A CA2312492A1 CA 2312492 A1 CA2312492 A1 CA 2312492A1 CA 002312492 A CA002312492 A CA 002312492A CA 2312492 A CA2312492 A CA 2312492A CA 2312492 A1 CA2312492 A1 CA 2312492A1
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CA
Canada
Prior art keywords
file
cifs
client device
locking
protocol
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002312492A
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French (fr)
Other versions
CA2312492C (en
Inventor
Andrea Borr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NetApp Inc
Original Assignee
Network Appliance, Inc.
Andrea Borr
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Network Appliance, Inc., Andrea Borr filed Critical Network Appliance, Inc.
Publication of CA2312492A1 publication Critical patent/CA2312492A1/en
Application granted granted Critical
Publication of CA2312492C publication Critical patent/CA2312492C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • G06F16/17—Details of further file system functions
    • G06F16/176—Support for shared access to files; File sharing support
    • G06F16/1767—Concurrency control, e.g. optimistic or pessimistic approaches
    • G06F16/1774—Locking methods, e.g. locking methods for file systems allowing shared and concurrent access to files
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00—Data processing: database and file management or data structures
    • Y10S707/99931—Database or file accessing

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Data Mining & Analysis (AREA)
  • Databases & Information Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)

Abstract

The invention provides a method and system for correct interoperation of multiple diverse file server or file locking protocols, using a uniform multi-protocol lock management system. A file server determines, before allowing any client device to access data or to obtain a lock, whether that would be inconsistent with existing locks, regardless of originating client device or originating protocol for those existing Locks. A first protocol enforces mandatory file-open and file-locking together with an opportunistic file-locking technique, while a second protocol lacks file-open semantics and provides only for advisory byte-range and file locking. Enforcing file-locking protects file data against corruption by NFS client devices. A CIFS client device, upon opening a file, can obtain an "oplock" (an opportunistic lock). When a client device issues a non-CIFS protocol request for the oplocked file, the file server sends an oplock-break message to the CIFS client device, giving the CIFS
client device the opportunity to flush any cached write operations and possibly close the file. Allowing NFS and NLM requests to break oplocks ensures that file data remains available to NFS client devices simultaneously with protecting integrity of that file data. A
CIFS client device can obtain a "change-monitoring" lock for a directory in the file system, so as to be notified by the file server whenever there is a change to that directory. The file server notes changes to the directory by both CIFS and non-CIFS client devices, and notifies those CIFS client devices with "change-monitoring" locks of those changes.
CA002312492A 1997-12-05 1998-11-30 Multi-protocol unified file-locking Expired - Fee Related CA2312492C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US98539897A 1997-12-05 1997-12-05
US08/985,398 1997-12-05
PCT/US1998/025388 WO1999030254A1 (en) 1997-12-05 1998-11-30 Multi-protocol unified file-locking

Publications (2)

Publication Number Publication Date
CA2312492A1 true CA2312492A1 (en) 1999-06-17
CA2312492C CA2312492C (en) 2006-02-07

Family

ID=25531449

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002312492A Expired - Fee Related CA2312492C (en) 1997-12-05 1998-11-30 Multi-protocol unified file-locking

Country Status (5)

Country Link
US (2) US6516351B2 (en)
EP (1) EP1034493A1 (en)
JP (2) JP2001526426A (en)
CA (1) CA2312492C (en)
WO (1) WO1999030254A1 (en)

Families Citing this family (132)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6138126A (en) 1995-05-31 2000-10-24 Network Appliance, Inc. Method for allocating files in a file system integrated with a raid disk sub-system
US6516351B2 (en) 1997-12-05 2003-02-04 Network Appliance, Inc. Enforcing uniform file-locking for diverse file-locking protocols
US7010532B1 (en) * 1997-12-31 2006-03-07 International Business Machines Corporation Low overhead methods and apparatus for shared access storage devices
US6279011B1 (en) * 1998-06-19 2001-08-21 Network Appliance, Inc. Backup and restore for heterogeneous file server environment
JP3786521B2 (en) * 1998-07-01 2006-06-14 株式会社日立製作所 Semiconductor integrated circuit and data processing system
JP4745478B2 (en) * 1999-01-29 2011-08-10 キヤノン株式会社 Network print system, information processing apparatus and control method therefor
US6922729B1 (en) * 1999-07-30 2005-07-26 International Business Machines Corporation Multi-connection control system
US6360221B1 (en) 1999-09-21 2002-03-19 Neostar, Inc. Method and apparatus for the production, delivery, and receipt of enhanced e-mail
US7840639B1 (en) * 1999-09-21 2010-11-23 G&H Nevada-Tek Method and article of manufacture for an automatically executed application program associated with an electronic message
US9092535B1 (en) 1999-09-21 2015-07-28 Google Inc. E-mail embedded textual hyperlink object
US7043553B2 (en) * 1999-10-07 2006-05-09 Cisco Technology, Inc. Method and apparatus for securing information access
JP5220974B2 (en) 1999-10-14 2013-06-26 ブルアーク ユーケー リミテッド Apparatus and method for acceleration of hardware execution or operating system functions
US6687698B1 (en) 1999-10-18 2004-02-03 Fisher Rosemount Systems, Inc. Accessing and updating a configuration database from distributed physical locations within a process control system
GB2394816B (en) * 1999-10-18 2004-08-11 Fisher Rosemount Systems Inc Accessing and updating a configuration database from distributed physical locations within a process control system
US7203735B1 (en) * 1999-10-21 2007-04-10 International Business Machines Corporation Files transfer between a remote home server and a local server
US20030140112A1 (en) * 1999-11-04 2003-07-24 Satish Ramachandran Electronic messaging system method and apparatus
US6651123B1 (en) * 2000-03-30 2003-11-18 International Business Machines Corporation File system locking
US6993131B1 (en) * 2000-09-12 2006-01-31 Nokia Corporation Method and system for managing rights in digital information over a network
US20020055923A1 (en) * 2000-11-01 2002-05-09 Sun Microsystems, Inc. Mandatory locking mechanisms for UNIX file systems
US7509322B2 (en) * 2001-01-11 2009-03-24 F5 Networks, Inc. Aggregated lock management for locking aggregated files in a switched file system
US20040133606A1 (en) * 2003-01-02 2004-07-08 Z-Force Communications, Inc. Directory aggregation for files distributed over a plurality of servers in a switched file system
EP1368736A2 (en) 2001-01-11 2003-12-10 Z-Force Communications, Inc. File switch and switched file system
US8239354B2 (en) 2005-03-03 2012-08-07 F5 Networks, Inc. System and method for managing small-size files in an aggregated file system
US8195760B2 (en) * 2001-01-11 2012-06-05 F5 Networks, Inc. File aggregation in a switched file system
US7788335B2 (en) * 2001-01-11 2010-08-31 F5 Networks, Inc. Aggregated opportunistic lock and aggregated implicit lock management for locking aggregated files in a switched file system
US7512673B2 (en) 2001-01-11 2009-03-31 Attune Systems, Inc. Rule based aggregation of files and transactions in a switched file system
US7383288B2 (en) 2001-01-11 2008-06-03 Attune Systems, Inc. Metadata based file switch and switched file system
US6779063B2 (en) * 2001-04-09 2004-08-17 Hitachi, Ltd. Direct access storage system having plural interfaces which permit receipt of block and file I/O requests
US6959337B2 (en) * 2001-04-23 2005-10-25 Hewlett-Packard Development Company, L.P. Networked system for assuring synchronous access to critical facilities
US20020188697A1 (en) * 2001-06-08 2002-12-12 O'connor Michael A. A method of allocating storage in a storage area network
US7370217B2 (en) * 2001-11-16 2008-05-06 Intel Corporation Regulating file system device access
US7529778B1 (en) 2001-12-12 2009-05-05 Microsoft Corporation System and method for providing access to consistent point-in-time file versions
JP2003233520A (en) * 2002-02-07 2003-08-22 Fujitsu Ltd File controlling device for file resource on network
JP2003233519A (en) * 2002-02-07 2003-08-22 Fujitsu Ltd File controller for file resource on network
US7313557B1 (en) * 2002-03-15 2007-12-25 Network Appliance, Inc. Multi-protocol lock manager
US7051050B2 (en) * 2002-03-19 2006-05-23 Netwrok Appliance, Inc. System and method for restoring a single file from a snapshot
JP2003281140A (en) * 2002-03-20 2003-10-03 Hitachi Ltd Contents delivery method and delivery system
US6857001B2 (en) 2002-06-07 2005-02-15 Network Appliance, Inc. Multiple concurrent active file systems
US7024586B2 (en) * 2002-06-24 2006-04-04 Network Appliance, Inc. Using file system information in raid data reconstruction and migration
US7457822B1 (en) 2002-11-01 2008-11-25 Bluearc Uk Limited Apparatus and method for hardware-based file system
US7797392B2 (en) * 2002-11-26 2010-09-14 International Business Machines Corporation System and method for efficiently supporting multiple native network protocol implementations in a single system
US7877511B1 (en) 2003-01-13 2011-01-25 F5 Networks, Inc. Method and apparatus for adaptive services networking
US8706760B2 (en) 2003-02-28 2014-04-22 Microsoft Corporation Method to delay locking of server files on edit
JP2004280283A (en) * 2003-03-13 2004-10-07 Hitachi Ltd Distributed file system, distributed file system server, and access method to distributed file system
JP4320195B2 (en) 2003-03-19 2009-08-26 株式会社日立製作所 File storage service system, file management apparatus, file management method, ID designation type NAS server, and file reading method
US7233946B1 (en) * 2003-04-11 2007-06-19 Sun Microsystems, Inc. File interval lock generation interface system and method
US7409389B2 (en) * 2003-04-29 2008-08-05 International Business Machines Corporation Managing access to objects of a computing environment
JP2007511820A (en) * 2003-10-27 2007-05-10 アーカイヴァス インコーポレイテッド Policy-based management for independent node redundant arrays
US7380246B2 (en) * 2003-12-15 2008-05-27 Lenovo (Singapore) Pte. Ltd. Method and system of accessing at least one target file in a computer system with an operating system with file locking implemented with byte-range locking
US7660882B2 (en) * 2004-06-10 2010-02-09 Cisco Technology, Inc. Deploying network element management system provisioning services
US20060015493A1 (en) * 2004-07-15 2006-01-19 International Business Machines Corporation Enhanced records manager and related methods
US7617256B2 (en) * 2004-07-19 2009-11-10 Microsoft Corporation Remote file updates through remote protocol
US7784088B2 (en) 2004-07-30 2010-08-24 Research In Motion Limited Method and system for managing delayed user authentication
CA2575288C (en) 2004-07-30 2017-10-31 Research In Motion Limited Method and system for coordinating client and host security modules
US7315926B2 (en) * 2004-09-21 2008-01-01 Emc Corporation Lock management for concurrent access to a single file from multiple data mover computers
US7885970B2 (en) * 2005-01-20 2011-02-08 F5 Networks, Inc. Scalable system for partitioning and accessing metadata over multiple servers
US20060167838A1 (en) * 2005-01-21 2006-07-27 Z-Force Communications, Inc. File-based hybrid file storage scheme supporting multiple file switches
US7958347B1 (en) 2005-02-04 2011-06-07 F5 Networks, Inc. Methods and apparatus for implementing authentication
US8332485B1 (en) 2005-03-04 2012-12-11 Cisco Technology, Inc. Lock optimization and lock prediction approaches for reducing client-server messages
US8332526B2 (en) * 2005-05-25 2012-12-11 Microsoft Corporation Data communication protocol including negotiation and command compounding
US7853962B1 (en) 2005-05-31 2010-12-14 Cisco Technology, Inc. Method and apparatus for optimization of remote procedure call communications
US20060277221A1 (en) * 2005-06-01 2006-12-07 Green Hills Software, Inc. Transactional file system with client partitioning
US7716307B1 (en) * 2005-10-21 2010-05-11 Cisco Technology, Inc. Method and apparatus for reducing client-server messages associated with opening a file
US7636767B2 (en) * 2005-11-29 2009-12-22 Cisco Technology, Inc. Method and apparatus for reducing network traffic over low bandwidth links
US7644121B2 (en) * 2005-11-30 2010-01-05 Clickpath, Llc Method and system for online session tracking
US7581004B2 (en) * 2006-02-15 2009-08-25 Gabriel Jakobson System and method for alerting on open file-share sessions on a user's electronic device
US7904435B2 (en) * 2006-03-10 2011-03-08 Yahoo! Inc. System and method for resource lock acquisition and reclamation in a network file system environment
US8417746B1 (en) 2006-04-03 2013-04-09 F5 Networks, Inc. File system management with enhanced searchability
US8788685B1 (en) * 2006-04-27 2014-07-22 Netapp, Inc. System and method for testing multi-protocol storage systems
US8583596B2 (en) * 2006-11-29 2013-11-12 Red Hat, Inc. Multi-master referential integrity
US20080243847A1 (en) * 2007-04-02 2008-10-02 Microsoft Corporation Separating central locking services from distributed data fulfillment services in a storage system
US8433693B2 (en) * 2007-04-02 2013-04-30 Microsoft Corporation Locking semantics for a storage system based on file types
WO2008130983A1 (en) * 2007-04-16 2008-10-30 Attune Systems, Inc. File aggregation in a switched file system
WO2008147973A2 (en) * 2007-05-25 2008-12-04 Attune Systems, Inc. Remote file virtualization in a switched file system
US20090204705A1 (en) * 2007-11-12 2009-08-13 Attune Systems, Inc. On Demand File Virtualization for Server Configuration Management with Limited Interruption
US8548953B2 (en) * 2007-11-12 2013-10-01 F5 Networks, Inc. File deduplication using storage tiers
US8117244B2 (en) 2007-11-12 2012-02-14 F5 Networks, Inc. Non-disruptive file migration
US8180747B2 (en) 2007-11-12 2012-05-15 F5 Networks, Inc. Load sharing cluster file systems
US20090204650A1 (en) * 2007-11-15 2009-08-13 Attune Systems, Inc. File Deduplication using Copy-on-Write Storage Tiers
US7809776B1 (en) * 2007-11-30 2010-10-05 Netapp, Inc. System and method for supporting change notify watches for virtualized storage systems
US8352785B1 (en) 2007-12-13 2013-01-08 F5 Networks, Inc. Methods for generating a unified virtual snapshot and systems thereof
US8549582B1 (en) 2008-07-11 2013-10-01 F5 Networks, Inc. Methods for handling a multi-protocol content name and systems thereof
US8230439B2 (en) * 2008-08-22 2012-07-24 International Business Machines Corporation Green computing interchange switching function
WO2010041515A1 (en) * 2008-10-06 2010-04-15 インターナショナル・ビジネス・マシーンズ・コーポレーション System accessing shared data by a plurality of application servers
US9031990B2 (en) * 2009-08-11 2015-05-12 Q2 Management Inc. Data processing system for manufacturing quality inspection management system
US10721269B1 (en) 2009-11-06 2020-07-21 F5 Networks, Inc. Methods and system for returning requests with javascript for clients before passing a request to a server
JP5349269B2 (en) * 2009-12-07 2013-11-20 ブリヂストンスポーツ株式会社 Tennis ball felt and tennis ball
US8204860B1 (en) 2010-02-09 2012-06-19 F5 Networks, Inc. Methods and systems for snapshot reconstitution
US9195500B1 (en) 2010-02-09 2015-11-24 F5 Networks, Inc. Methods for seamless storage importing and devices thereof
US8347100B1 (en) 2010-07-14 2013-01-01 F5 Networks, Inc. Methods for DNSSEC proxying and deployment amelioration and systems thereof
US8965862B2 (en) 2010-09-17 2015-02-24 Microsoft Corporation Directory oplock
JP5539833B2 (en) * 2010-09-29 2014-07-02 キヤノン電子株式会社 Information processing apparatus and control method therefor, computer program, and computer-readable storage medium
US9286298B1 (en) 2010-10-14 2016-03-15 F5 Networks, Inc. Methods for enhancing management of backup data sets and devices thereof
US8631277B2 (en) 2010-12-10 2014-01-14 Microsoft Corporation Providing transparent failover in a file system
JP5249368B2 (en) * 2011-01-31 2013-07-31 株式会社バッファロー Network equipment
US8849880B2 (en) 2011-05-18 2014-09-30 Hewlett-Packard Development Company, L.P. Providing a shadow directory and virtual files to store metadata
US9507797B2 (en) * 2011-06-06 2016-11-29 Hewlett Packard Enterprise Development Lp Cross-protocol locking with a file system
US8620865B2 (en) 2011-06-24 2013-12-31 Netapp, Inc. System and method for providing a unified storage system that supports file/object duality
US9331955B2 (en) 2011-06-29 2016-05-03 Microsoft Technology Licensing, Llc Transporting operations of arbitrary size over remote direct memory access
US8396836B1 (en) 2011-06-30 2013-03-12 F5 Networks, Inc. System for mitigating file virtualization storage import latency
US8856582B2 (en) 2011-06-30 2014-10-07 Microsoft Corporation Transparent failover
US20130067095A1 (en) 2011-09-09 2013-03-14 Microsoft Corporation Smb2 scaleout
US8788579B2 (en) 2011-09-09 2014-07-22 Microsoft Corporation Clustered client failover
US8463850B1 (en) 2011-10-26 2013-06-11 F5 Networks, Inc. System and method of algorithmically generating a server side transaction identifier
US9020912B1 (en) 2012-02-20 2015-04-28 F5 Networks, Inc. Methods for accessing data in a compressed file system and devices thereof
US9519501B1 (en) 2012-09-30 2016-12-13 F5 Networks, Inc. Hardware assisted flow acceleration and L2 SMAC management in a heterogeneous distributed multi-tenant virtualized clustered system
US10375155B1 (en) 2013-02-19 2019-08-06 F5 Networks, Inc. System and method for achieving hardware acceleration for asymmetric flow connections
US9554418B1 (en) 2013-02-28 2017-01-24 F5 Networks, Inc. Device for topology hiding of a visited network
EP2853966A1 (en) * 2013-09-30 2015-04-01 Siemens Aktiengesellschaft Industrial automation system with at least one controller and a memory
US20150106298A1 (en) * 2013-10-11 2015-04-16 Prolifiq Sofware Inc. Selective sharing of electronic information
US9336406B2 (en) * 2013-11-14 2016-05-10 Futurewei Technologies, Inc. Multiprotocol access control list with guaranteed protocol compliance
US10536523B2 (en) 2014-05-11 2020-01-14 Microsoft Technology Licensing, Llc File service using a shared file access-rest interface
US10169367B2 (en) * 2014-06-06 2019-01-01 Panzura, Inc. Managing opportunistic locks in a distributed file system
US11838851B1 (en) 2014-07-15 2023-12-05 F5, Inc. Methods for managing L7 traffic classification and devices thereof
US9917882B2 (en) * 2014-11-30 2018-03-13 Sonicwall Inc. Transparent deferred spooling store and forward based on standard network system and client interface
US10182013B1 (en) 2014-12-01 2019-01-15 F5 Networks, Inc. Methods for managing progressive image delivery and devices thereof
US10313486B2 (en) 2015-01-07 2019-06-04 Sonicwall Inc. Optimizing transfer of fragmented packetized data
US11895138B1 (en) 2015-02-02 2024-02-06 F5, Inc. Methods for improving web scanner accuracy and devices thereof
US10834065B1 (en) 2015-03-31 2020-11-10 F5 Networks, Inc. Methods for SSL protected NTLM re-authentication and devices thereof
US9813526B2 (en) 2015-05-26 2017-11-07 Sonicwall Inc. Reducing transmission pathway lengths within a distributed network
US10158735B2 (en) 2015-08-07 2018-12-18 Sonicwall Inc. Read-ahead on signed connections with unsigning, inline, transparent proxies
US10404698B1 (en) 2016-01-15 2019-09-03 F5 Networks, Inc. Methods for adaptive organization of web application access points in webtops and devices thereof
US10797888B1 (en) 2016-01-20 2020-10-06 F5 Networks, Inc. Methods for secured SCEP enrollment for client devices and devices thereof
KR102107277B1 (en) * 2016-08-08 2020-05-06 (주)나무소프트 System and method for anti-fishing or anti-ransomware application
US10412198B1 (en) 2016-10-27 2019-09-10 F5 Networks, Inc. Methods for improved transmission control protocol (TCP) performance visibility and devices thereof
US10567492B1 (en) 2017-05-11 2020-02-18 F5 Networks, Inc. Methods for load balancing in a federated identity environment and devices thereof
US11223689B1 (en) 2018-01-05 2022-01-11 F5 Networks, Inc. Methods for multipath transmission control protocol (MPTCP) based session migration and devices thereof
US10833943B1 (en) 2018-03-01 2020-11-10 F5 Networks, Inc. Methods for service chaining and devices thereof
US11082494B2 (en) * 2019-12-05 2021-08-03 Western Digital Technologies, Inc. Cross storage protocol access response for object data stores
US11455213B2 (en) * 2020-02-05 2022-09-27 EMC IP Holding Company LLC Method and system for parallel data transmission and cooperating backups
CN115951844B (en) * 2023-03-13 2023-06-06 浪潮电子信息产业股份有限公司 File lock management method, equipment and medium of distributed file system
CN115934743B (en) * 2023-03-13 2023-06-02 浪潮电子信息产业股份有限公司 File lock management method, system, equipment and computer readable storage medium

Family Cites Families (77)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4814971A (en) 1985-09-11 1989-03-21 Texas Instruments Incorporated Virtual memory recovery system using persistent roots for selective garbage collection and sibling page timestamping for defining checkpoint state
US4719569A (en) 1985-10-11 1988-01-12 Sun Microsystems, Inc. Arbitrator for allocating access to data processing resources
US4825354A (en) 1985-11-12 1989-04-25 American Telephone And Telegraph Company, At&T Bell Laboratories Method of file access in a distributed processing computer network
US4742450A (en) 1986-01-16 1988-05-03 International Business Machines Corporation Method to share copy on write segment for mapped files
US4780821A (en) 1986-07-29 1988-10-25 International Business Machines Corp. Method for multiple programs management within a network having a server computer and a plurality of remote computers
US4887204A (en) 1987-02-13 1989-12-12 International Business Machines Corporation System and method for accessing remote files in a distributed networking environment
CA1299757C (en) 1987-08-28 1992-04-28 Brent Cameron Beardsley Device initiated partial system quiescing
EP0306244B1 (en) 1987-09-04 1995-06-21 Digital Equipment Corporation Fault tolerant computer system with fault isolation
US5109515A (en) 1987-09-28 1992-04-28 At&T Bell Laboratories User and application program transparent resource sharing multiple computer interface architecture with kernel process level transfer of user requested services
US5319780A (en) * 1987-10-19 1994-06-07 International Business Machines Corporation System that implicitly locks a subtree or explicitly locks a node based upon whether or not an explicit lock request is issued
JP2625866B2 (en) 1988-04-26 1997-07-02 日本電気株式会社 Electronic device housing cooling structure
US5043876A (en) 1988-05-27 1991-08-27 International Business Machines Corporation N-level file shadowing and recovery in a shared file system
US4937763A (en) 1988-09-06 1990-06-26 E I International, Inc. Method of system state analysis
US5065354A (en) 1988-09-16 1991-11-12 Compaq Computer Corporation Queued posted-write disk write method with improved error handling
US5067099A (en) 1988-11-03 1991-11-19 Allied-Signal Inc. Methods and apparatus for monitoring system performance
US4984272A (en) 1988-11-30 1991-01-08 At&T Bell Laboratories Secure file handling in a computer operating system
JPH02165241A (en) 1988-12-19 1990-06-26 Toshiba Corp File access system
US5222217A (en) 1989-01-18 1993-06-22 International Business Machines Corporation System and method for implementing operating system message queues with recoverable shared virtual storage
US5113442A (en) 1989-03-06 1992-05-12 Lachman Associates, Inc. Method and apparatus for providing access control in a secure operating system
US5144659A (en) 1989-04-19 1992-09-01 Richard P. Jones Computer file protection system
US5454099A (en) 1989-07-25 1995-09-26 International Business Machines Corporation CPU implemented method for backing up modified data sets in non-volatile store for recovery in the event of CPU failure
US5261051A (en) 1989-08-14 1993-11-09 Microsoft Corporation Method and system for open file caching in a networked computer system
US5230047A (en) 1990-04-16 1993-07-20 International Business Machines Corporation Method for balancing of distributed tree file structures in parallel computing systems to enable recovery after a failure
JPH04130950A (en) 1990-09-21 1992-05-01 Toshiba Corp Network system
US5146588A (en) 1990-11-26 1992-09-08 Storage Technology Corporation Redundancy accumulator for disk drive array memory
US5321837A (en) 1991-10-11 1994-06-14 International Business Machines Corporation Event handling mechanism having a process and an action association process
GB9126779D0 (en) 1991-12-17 1992-02-12 Int Computers Ltd Security mechanism for a computer system
US5469566A (en) 1992-03-12 1995-11-21 Emc Corporation Flexible parity generation circuit for intermittently generating a parity for a plurality of data channels in a redundant array of storage units
JPH0619771A (en) * 1992-04-20 1994-01-28 Internatl Business Mach Corp <Ibm> File management system of shared file by different kinds of clients
US5448718A (en) 1992-04-20 1995-09-05 International Business Machines Corporation Method and system for time zero backup session security
US5335235A (en) 1992-07-07 1994-08-02 Digital Equipment Corporation FIFO based parity generator
US5596754A (en) * 1992-10-29 1997-01-21 Digital Equipment Corporation Method for performing private lock management
US5504883A (en) 1993-02-01 1996-04-02 Lsc, Inc. Method and apparatus for insuring recovery of file control information for secondary storage systems
US5522050A (en) 1993-05-28 1996-05-28 International Business Machines Corporation Bus-to-bus bridge for a multiple bus information handling system that optimizes data transfers between a system bus and a peripheral bus
ATE409907T1 (en) 1993-06-03 2008-10-15 Network Appliance Inc METHOD AND DEVICE FOR DESCRIBING ANY AREAS OF A FILE SYSTEM
US5963962A (en) 1995-05-31 1999-10-05 Network Appliance, Inc. Write anywhere file-system layout
JPH08511368A (en) 1993-06-04 1996-11-26 ネットワーク・アプリアンス・コーポレーション Method for forming parity in RAID subsystem using non-volatile memory
EP0706686B1 (en) 1993-07-01 1998-10-14 Legent Corporation System and method for distributed storage management on networked computer systems
US5572711A (en) 1993-09-28 1996-11-05 Bull Hn Information Systems Inc. Mechanism for linking together the files of emulated and host system for access by emulated system users
US5649152A (en) 1994-10-13 1997-07-15 Vinca Corporation Method and system for providing a static snapshot of data stored on a mass storage system
US5835953A (en) 1994-10-13 1998-11-10 Vinca Corporation Backup system that takes a snapshot of the locations in a mass storage device that has been identified for updating prior to updating
EP0713183A3 (en) 1994-11-18 1996-10-02 Microsoft Corp Network independent file shadowing
US6085234A (en) * 1994-11-28 2000-07-04 Inca Technology, Inc. Remote file services network-infrastructure cache
US5689701A (en) 1994-12-14 1997-11-18 International Business Machines Corporation System and method for providing compatibility between distributed file system namespaces and operating system pathname syntax
US5617568A (en) 1994-12-14 1997-04-01 International Business Machines Corporation System and method for supporting file attributes on a distributed file system without native support therefor
US5604862A (en) 1995-03-14 1997-02-18 Network Integrity, Inc. Continuously-snapshotted protection of computer files
US5696895A (en) 1995-05-19 1997-12-09 Compaq Computer Corporation Fault tolerant multiple network servers
US5603051A (en) 1995-06-06 1997-02-11 Hewlett-Packard Company Input/output processor with a local memory providing shared resources for a plurality of input/output interfaces on an I/O bus
US5675782A (en) 1995-06-06 1997-10-07 Microsoft Corporation Controlling access to objects on multiple operating systems
US5761669A (en) 1995-06-06 1998-06-02 Microsoft Corporation Controlling access to objects on multiple operating systems
US5628005A (en) * 1995-06-07 1997-05-06 Microsoft Corporation System and method for providing opportunistic file access in a network environment
US5729705A (en) 1995-07-24 1998-03-17 Symbios Logic Inc. Method and apparatus for enhancing throughput of disk array data transfers in a controller
US5720029A (en) 1995-07-25 1998-02-17 International Business Machines Corporation Asynchronously shadowing record updates in a remote copy session using track arrays
US5668958A (en) 1995-09-12 1997-09-16 International Business Machines Corporation Heterogeneous filing system with common API and reconciled file management rules
US5737744A (en) 1995-10-13 1998-04-07 Compaq Computer Corporation Disk array controller for performing exclusive or operations
US5740367A (en) * 1995-11-03 1998-04-14 Spilo; Michael L. Method and apparatus for improving the throughput of a local area network
US5742752A (en) 1995-12-29 1998-04-21 Symbios Logic Inc. Method for performing a RAID stripe write operation using a drive XOR command set
US5737523A (en) 1996-03-04 1998-04-07 Sun Microsystems, Inc. Methods and apparatus for providing dynamic network file system client authentication
US5819310A (en) 1996-05-24 1998-10-06 Emc Corporation Method and apparatus for reading data from mirrored logical volumes on physical disk drives
US5825877A (en) 1996-06-11 1998-10-20 International Business Machines Corporation Support for portable trusted software
US5828876A (en) * 1996-07-31 1998-10-27 Ncr Corporation File system for a clustered processing system
US6161165A (en) 1996-11-14 2000-12-12 Emc Corporation High performance data path with XOR on the fly
US6026474A (en) * 1996-11-22 2000-02-15 Mangosoft Corporation Shared client-side web caching using globally addressable memory
US5915087A (en) 1996-12-12 1999-06-22 Secure Computing Corporation Transparent security proxy for unreliable message exchange protocols
US5931935A (en) 1997-04-15 1999-08-03 Microsoft Corporation File system primitive allowing reprocessing of I/O requests by multiple drivers in a layered driver I/O system
US5876278A (en) 1997-05-29 1999-03-02 Cheng; Henry Cooling device
US6067541A (en) 1997-09-17 2000-05-23 Microsoft Corporation Monitoring document changes in a file system of documents with the document change information stored in a persistent log
US6275953B1 (en) * 1997-09-26 2001-08-14 Emc Corporation Recovery from failure of a data processor in a network server
US5996086A (en) 1997-10-14 1999-11-30 Lsi Logic Corporation Context-based failover architecture for redundant servers
US5999943A (en) 1997-10-31 1999-12-07 Oracle Corporation Lob locators
US5940828A (en) * 1997-11-18 1999-08-17 International Business Machines Corporation Locking contention resolution for shared resources
US6516351B2 (en) 1997-12-05 2003-02-04 Network Appliance, Inc. Enforcing uniform file-locking for diverse file-locking protocols
US6457130B2 (en) 1998-03-03 2002-09-24 Network Appliance, Inc. File access control in a multi-protocol file server
US5890959A (en) 1998-03-31 1999-04-06 Digital Equipment Corporation High efficiency blower system with integral backflow preventor
US6279011B1 (en) 1998-06-19 2001-08-21 Network Appliance, Inc. Backup and restore for heterogeneous file server environment
US6574591B1 (en) 1998-07-31 2003-06-03 Network Appliance, Inc. File systems image transfer between dissimilar file systems
US6654912B1 (en) 2000-10-04 2003-11-25 Network Appliance, Inc. Recovery of file system data in file servers mirrored file system volumes

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US20030065796A1 (en) 2003-04-03
JP2008305405A (en) 2008-12-18
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US7293097B2 (en) 2007-11-06
US6516351B2 (en) 2003-02-04
WO1999030254A1 (en) 1999-06-17

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