Title:
INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD AND PROGRAM
Document Type and Number:
Japanese Patent JP2016066286
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve a fall in performance on the basis of duplication processing.SOLUTION: An information processing device according to the present invention includes: patrol read processing means that implements a patrol read with respect to data on an operation device; duplication processing means that writes the data read in the patrol read to a duplication device; patrol read implementation time prediction determination means that determines whether an address of an input or output request from a host system is subjected to the patrol read in a limit time serving as an allowable time as a mismatch between the operation device and the duplication device; address storage means that, when the address of the input or output request is not the address to be subjected to the patrol read in the limit time, stores the address; data synchronous processing determination means that notifies a start of synchronous processing in the limit time; and data synchronous processing means that reads data on the address of the operation device on the basis of the notification, and writes the data to an address in the duplication device.SELECTED DRAWING: Figure 1
Inventors:
OGAWA KAZUHIRO
Application Number:
JP2014195311A
Publication Date:
April 28, 2016
Filing Date:
September 25, 2014
Export Citation:
Assignee:
NEC CORP
International Classes:
G06F3/06
Attorney, Agent or Firm:
Masahiko Desk
Naoki Shimosaka
Naoki Shimosaka