Boots – shoes – and leggings
Patent
1994-09-28
1996-09-24
Kulik, Paul V.
Boots, shoes, and leggings
395600, 395486, 39520001, 39520012, 364DIG1, 36424294, 36424341, G06F 1202, G06F 1212, G06F 15177
Patent
active
055599842
ABSTRACT:
A distributed file system in which the cache hit ratio of a client is enhanced to speed up a file access for each of users logging into the client. A file server includes an access frequency database in which the names of users are listed in association with the names of files that are frequently accessed by the individual users. Each client includes a log-in user table for entering the name of a user who is logging in, and a cache priority control module. The cache priority control module sets priority levels for the copies of the files stored in a cache area, on the basis of the contents of the access frequency database and the log-in user table. The set priority levels function as criteria when any of the file copies is to be expelled from the cache area. Owing to this construction, the copies of the files of high usage frequencies are preferentially kept in the cache area of the client for each user logging into this client, whereby the cache hit ratio can be enhanced to speed up the file access.
REFERENCES:
patent: 4897781 (1990-01-01), Chang et al.
patent: 5305440 (1994-04-01), Morgan et al.
patent: 5442771 (1995-08-01), Filepp et al.
patent: 5452447 (1995-09-01), Nelson et al.
patent: 5491820 (1996-02-01), Belove et al.
James J. Kistler, "Increasing File System Availability through Second-Class Replication," Management of Replicated Data, 1990 Workshop, IEEE, pp. 65-69.
Carl D. Tait et al., "Detection and Exploitation of File Working Sets," 1991 Int'l Con'f on Distributed Computing Systems, IEEE, pp. 2-9.
Donna Mecozzi et al., "Design for a Transparent, Distributed File System," 1991 11th IEEE Symposium on Mass Storage Systems, IEEE, pp. 77-84.
Carl Hauser, "A Plea for Interfaces that Support Caching," Workstation Operating Systems, 1992, IEEE, pp. 137-139.
Byung Gi Hong et al., "Ownership-Based Cache Constistency Model in a Distributed File System," TENCON '93--1993 IEEE Region 10 Conf. on Computer, Communication . . . , 1993, IEEE, pp. 161-164.
Swee B. Lim, "The Object-Oriented Advantage in Prototyping a Remote File System", 1992 Int'l Workshop on Object Orientation in Operating Systems, IEEE, pp. 190-199.
Michael N. Nelson et al., "Caching in an Object Oriented System," 1993 Int'l Conf. on Object Orientation in Operating Systems, IEEE, pp. 95-106.
ACM Transactions on Computer Systems, vol. 10, No. 1, Feb., 1992, pp. 3-25, J. J. Kistler, et al., "Disconnected Operation in the Coda File Sytesm".
Domyo Seiichi
Kobayashi Atsushi
Kuroda Takaki
Nakano Hirohiko
Shouji Naofumi
Hitachi , Ltd.
Kulik Paul V.
LandOfFree
Distributed file system permitting each user to enhance cache hi does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Distributed file system permitting each user to enhance cache hi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Distributed file system permitting each user to enhance cache hi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1947646