Electrical computers and digital processing systems: memory – Storage accessing and control – Hierarchical memories
Reexamination Certificate
2007-06-26
2007-06-26
Song, Jasmine (Department: 2188)
Electrical computers and digital processing systems: memory
Storage accessing and control
Hierarchical memories
C711S153000, C711S173000, C707S793000, C707S793000
Reexamination Certificate
active
11443719
ABSTRACT:
A computer system acquires mapping information of data storage regions in respective layers from a layer of DBMSs to a layer of storage subsystems, grasps correspondence between DB data and storage positions of each storage subsystem on the basis of the mapping information, decides a cache partitioning in each storage subsystem on the basis of the correspondence and sets the cache partitioning for each storage subsystem. When cache allocation in the DBMS or the storage subsystem needs to be changed, information for estimating the cache effect due to the change in cache allocation acquired by the DBMS is used for estimating the cache effect in the storage subsystem.
REFERENCES:
patent: 6549920 (2003-04-01), Obara et al.
patent: 6615317 (2003-09-01), Roseborough et al.
patent: 2003/0093647 (2003-05-01), Mogi et al.
patent: 2004/0049636 (2004-03-01), Campbell et al.
patent: 2004/0054648 (2004-03-01), Mogi et al.
patent: 2004/0193658 (2004-09-01), Kawamura et al.
Mogi Kazuhiko
Nishikawa Norifumi
Hitachi , Ltd.
Song Jasmine
Townsend and Townsend / and Crew LLP
LandOfFree
Cache memory managing method for computer system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cache memory managing method for computer system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cache memory managing method for computer system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3831333