Electrical computers and digital processing systems: memory – Storage accessing and control – Hierarchical memories
Patent
1996-04-24
1998-10-27
Kulik, Paul V.
Electrical computers and digital processing systems: memory
Storage accessing and control
Hierarchical memories
395620, 711121, 711133, 711136, 711159, G06F 1200
Patent
active
058290230
ABSTRACT:
A file access history attribute may be encoded and stored with a file in a computer memory. The file access history attribute may provide information as to the date of most recent access and the level of access on which date. In addition, the file access history attribute may provide information concerning recent file history (e.g., previous nine days), quarterly history (e.g., 80 days preceding the previous nine days), as well as long-term history (e.g., beyond the 80 day period). The encoding technique of the present invention may compress file access history information into a compact file access history attribute (e.g., six to twelve bytes). Disk caching software, for maintaining files in a hard drive of a local computer coupled to a network, may utilize the file access history attribute in deciding which files are to be stored in the local hard drive and which should be migrated to network storage or archive. A file history maintenance program may operate as a background job to periodically update file access histories relative to a known maintenance start date.
REFERENCES:
patent: 4703422 (1987-10-01), Kinoshita et al.
patent: 5113519 (1992-05-01), Johnson et al.
patent: 5136706 (1992-08-01), Courts
patent: 5257370 (1993-10-01), Letwin
patent: 5276867 (1994-01-01), Keyley et al.
patent: 5276872 (1994-01-01), Lomet et al.
patent: 5313631 (1994-05-01), Kao
patent: 5333311 (1994-07-01), Whipple, II
patent: 5390318 (1995-02-01), Ramakrishnan et al.
patent: 5423018 (1995-06-01), Dang et al.
patent: 5423034 (1995-06-01), Cohen-Levy et al.
patent: 5442771 (1995-08-01), Filepp et al.
patent: 5450584 (1995-09-01), Sekiguchi et al.
patent: 5463381 (1995-10-01), Ryu et al.
patent: 5499358 (1996-03-01), Nevarez
patent: 5506986 (1996-04-01), Healy
patent: 5584007 (1996-12-01), Ballard
patent: 5584015 (1996-12-01), Villette et al.
Stanford Diehl, "A Smaller Version of Infinity", Byte, Mar. 1995.
Barry Nance, "Network Storage Economizers", Byte, Mar. 1995.
Morris, James H. et al.; "Andrew: A Distributed Personal Computing Enviroment;"Communications of the ACMMar. 1986;vol. 29, No.:3; pp. 184-200.
Christman, R.D.; "Experience with File Migration;" Los Alamos National Laboratory Oct. 1981, pp. 1-13.
DeCosta, Bruce J. et al.; "NetGain;"NetStream, Inc.; Jul. 26, 1995, pp. 1-10.
Bell Robert P.
Cirrus Logic Inc.
Kulik Paul V.
Shaw Steven A.
LandOfFree
Method and apparatus for encoding history of file access to supp does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for encoding history of file access to supp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for encoding history of file access to supp will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1623123