Title:
DATA STORAGE DEVICE
Document Type and Number:
Japanese Patent JP2004310228
Kind Code:
A
Abstract:
To provide a data storage device capable of improving data transferring performance while enhancing the safety of storage data.
In case of deleting data from an HDD cache 121 temporarily storing data to be written in a removable HDD 500, the deletion of the data from the HDD cache 121 is waited until data 95-2b and 95-3b to be deleted are permanently recorded in a disk 560 within the removable HDD 500, whereby it is ensured that data 95-2a and 95-3a temporarily recorded in the removable HDD 500 are regularly present on the HDD cache 121, so that the restoration of the storage data state at the time of an abnormal termination of the removable HDD 500 can be restored when it is restarted.
Inventors:
SUZUKA TETSUYA
Application Number:
JP2003099769A
Publication Date:
November 04, 2004
Filing Date:
April 03, 2003
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
G06F12/08; G06F3/06; (IPC1-7): G06F3/06; G06F12/08
Attorney, Agent or Firm:
Takao Itagaki
Yoshihiro Morimoto
Yoshihiro Morimoto