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Title:
DISK CACHE-CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2007102314
Kind Code:
A
Abstract:

To provide a disk cache-control device which attains high-speed access from a high-order device even if access is made to an arbitrary area of a logical volume from the higher-level device.

The disk cache-control device 10 is provided at least with; a data storage means 11 which stores data, which are read out from a lower-level device, temporally or for a certain period of time; a management information storage means 12 which stores management information which correlates an area of a logical volume with an area of the data storage means; a management information generation means 13 which generates the management information; and an access processing means 14 which access the data stored in the data storage means or data stored in the lower-level device in accordance with a request from a higher-level device.


Inventors:
KOBAYASHI AKITO
YAMADA HIDENORI
NAGASHIMA KATSUHIKO
ITO MIKIO
Application Number:
JP2005288018A
Publication Date:
April 19, 2007
Filing Date:
September 30, 2005
Export Citation:
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Assignee:
FUJITSU LTD
International Classes:
G06F3/06; G06F12/08; G06F12/12
Attorney, Agent or Firm:
Yoshiyuki Osuga
Motoaki Hisagi