CA2142797A1 - System and method for efficient caching in a distributed file system - Google Patents

System and method for efficient caching in a distributed file system

Info

Publication number
CA2142797A1
CA2142797A1 CA002142797A CA2142797A CA2142797A1 CA 2142797 A1 CA2142797 A1 CA 2142797A1 CA 002142797 A CA002142797 A CA 002142797A CA 2142797 A CA2142797 A CA 2142797A CA 2142797 A1 CA2142797 A1 CA 2142797A1
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CA
Canada
Prior art keywords
file system
cache
disconnected
created
logging
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
CA002142797A
Other languages
French (fr)
Other versions
CA2142797C (en
Inventor
Thomas George Cantrell
Sebnem Jaji
Amal Ahmed Shaheen
Richard Byron Ward
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of CA2142797A1 publication Critical patent/CA2142797A1/en
Application granted granted Critical
Publication of CA2142797C publication Critical patent/CA2142797C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • 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
    • G06F16/172—Caching, prefetching or hoarding of files
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures

Abstract

A cache manager efficiently supporting both connected and disconnected client operation. A single integrated cache is maintained for file system data, status and pathname information. File system requests are satisfied by the cache if possible and passed to a remote file system for servicing if necessary. The cache manager is independent of operating system file syntax and distributed file system protocol.
Disconnected operation is supported through an aggressive caching policy and by logging of file system modifications. Modification logs are created when the client is disconnected by logging objects that optimize the log as it is created. Cache file system objects can have multiple parents each with different naming syntax because the object name is not cached.
CA002142797A 1994-03-07 1995-02-17 System and method for efficient caching in a distributed file system Expired - Fee Related CA2142797C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US206,706 1994-03-07
US08/206,706 US6119151A (en) 1994-03-07 1994-03-07 System and method for efficient cache management in a distributed file system

Publications (2)

Publication Number Publication Date
CA2142797A1 true CA2142797A1 (en) 1995-09-08
CA2142797C CA2142797C (en) 2005-04-12

Family

ID=22767588

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002142797A Expired - Fee Related CA2142797C (en) 1994-03-07 1995-02-17 System and method for efficient caching in a distributed file system

Country Status (14)

Country Link
US (1) US6119151A (en)
EP (1) EP0749602B1 (en)
JP (1) JP2705006B2 (en)
KR (1) KR0170561B1 (en)
CN (1) CN1132109C (en)
AT (1) ATE177223T1 (en)
BR (1) BR9500819A (en)
CA (1) CA2142797C (en)
CZ (1) CZ260296A3 (en)
DE (1) DE69416875T2 (en)
HU (1) HU219996B (en)
PL (1) PL176975B1 (en)
RU (1) RU2170454C2 (en)
WO (1) WO1995024685A1 (en)

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CN115563075A (en) * 2022-10-09 2023-01-03 电子科技大学 Virtual file system implementation method based on microkernel

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115563075A (en) * 2022-10-09 2023-01-03 电子科技大学 Virtual file system implementation method based on microkernel
CN115563075B (en) * 2022-10-09 2023-05-30 电子科技大学 Virtual file system implementation method based on microkernel

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KR0170561B1 (en) 1999-03-30
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EP0749602A1 (en) 1996-12-27
EP0749602B1 (en) 1999-03-03
HUT75264A (en) 1997-05-28
HU9602443D0 (en) 1996-11-28
JPH07262074A (en) 1995-10-13
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KR950027577A (en) 1995-10-18
RU2170454C2 (en) 2001-07-10
CA2142797C (en) 2005-04-12
PL316565A1 (en) 1997-01-20
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CN1121216A (en) 1996-04-24
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US6119151A (en) 2000-09-12
ATE177223T1 (en) 1999-03-15
DE69416875D1 (en) 1999-04-08
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JP2705006B2 (en) 1998-01-26
CZ260296A3 (en) 1997-12-17

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