Systems and methods for providing distributed cache coherence

Details Systems and methods for providing distributed cache coherence Systems and methods for providing distributed cache coherence

2011-07-05

2011-07-05

Chea, Philip J (Department: 2492)

Electrical computers and digital processing systems: multicomput

Multicomputer data transferring via shared memory

Plural shared memories

C709S213000, C709S215000, C709S216000, C711S130000, C711S141000, C711S147000

Reexamination Certificate

active

07975018

ABSTRACT:
A plurality of access nodes sharing access to data on a storage network implement a directory based cache ownership scheme. One node, designated as a global coordinator, maintains a directory (e.g., table or other data structure) storing information about I/O operations by the access nodes. The other nodes send requests to the global coordinator when an I/O operation is to be performed on identified data. Ownership of that data in the directory is given to the first requesting node. Ownership may transfer to another node if the directory entry is unused or quiescent. The distributed directory-based cache coherency allows for reducing bandwidth requirements between geographically separated access nodes by allowing localized (cached) access to remote data.

REFERENCES:
patent: 5197146 (1993-03-01), LaFetra
patent: 5410697 (1995-04-01), Baird et al.
patent: 5577204 (1996-11-01), Brewer et al.
patent: 5611070 (1997-03-01), Heidelberger et al.
patent: 5630097 (1997-05-01), Orbits et al.
patent: 5727150 (1998-03-01), Laudon et al.
patent: 5832534 (1998-11-01), Singh et al.
patent: 5835957 (1998-11-01), Lin
patent: 5875456 (1999-02-01), Stallmo et al.
patent: 5900015 (1999-05-01), Herger et al.
patent: 6044438 (2000-03-01), Olnowich
patent: 6049851 (2000-04-01), Bryg et al.
patent: 6081833 (2000-06-01), Okamoto et al.
patent: 6112286 (2000-08-01), Schimmel et al.
patent: 6148414 (2000-11-01), Brown et al.
patent: 6170044 (2001-01-01), McLaughlin et al.
patent: 6192408 (2001-02-01), Vahalia et al.
patent: 6247144 (2001-06-01), Macias-Garza et al.
patent: 6263402 (2001-07-01), Ronstrom et al.
patent: 6275953 (2001-08-01), Vahalia et al.
patent: 6286090 (2001-09-01), Steely, Jr. et al.
patent: 6295584 (2001-09-01), DeSota et al.
patent: 6356983 (2002-03-01), Parks
patent: 6490661 (2002-12-01), Keller et al.
patent: 6631449 (2003-10-01), Borrill
patent: 6681239 (2004-01-01), Munroe et al.
patent: 6760756 (2004-07-01), Davis et al.
patent: 6766360 (2004-07-01), Conway et al.
patent: 6813522 (2004-11-01), Schwarm et al.
patent: 6816891 (2004-11-01), Vahalia et al.
patent: 6857059 (2005-02-01), Karpoff et al.
patent: 6912668 (2005-06-01), Brown et al.
patent: 6920485 (2005-07-01), Russell
patent: 6961825 (2005-11-01), Steely, Jr. et al.
patent: 7010554 (2006-03-01), Jiang et al.
patent: 7136969 (2006-11-01), Niver et al.
patent: 7194532 (2007-03-01), Sazawa et al.
patent: 7240165 (2007-07-01), Tierney et al.
patent: 7266706 (2007-09-01), Brown et al.
patent: 7373466 (2008-05-01), Conway
patent: 7395374 (2008-07-01), Tierney et al.
patent: 7475207 (2009-01-01), Bromling et al.
patent: 7478202 (2009-01-01), Niver et al.
patent: 2001/0037406 (2001-11-01), Philbrick et al.
patent: 2001/0049773 (2001-12-01), Bhavsar
patent: 2002/0013889 (2002-01-01), Schuster et al.
patent: 2002/0059499 (2002-05-01), Hudson
patent: 2002/0138698 (2002-09-01), Kalla
patent: 2002/0166031 (2002-11-01), Chen et al.
patent: 2003/0018739 (2003-01-01), Cypher et al.
patent: 2003/0023702 (2003-01-01), Kokku et al.
patent: 2003/0105829 (2003-06-01), Hayward
patent: 2003/0167420 (2003-09-01), Parsons
patent: 2003/0233423 (2003-12-01), Dilley et al.
patent: 2004/0019891 (2004-01-01), Koenen
patent: 2004/0044744 (2004-03-01), Grosner et al.
patent: 2004/0260768 (2004-12-01), Mizuno
patent: 2005/0160230 (2005-07-01), Doren et al.
patent: 2005/0160232 (2005-07-01), Tierney et al.
patent: 0871128 (1998-10-01), None
patent: WO 98/28685 (1998-07-01), None

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