Information Processing Apparatus, Backup Device and Information Processing Method

• US 20090172478A1
• Filed: 07/30/2008
• Published: 07/02/2009
• Est. Priority Date: 12/27/2007
• Status: Active Grant

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Yamazaki, Hiroshi, Watanabe, Jun
• Granted Patent: US 7,711,981 B2
• Time in Patent Office: Days
• US Class Current: 714/54
• CPC Class Codes: G06F 11/1451 by selection of backup contents
• CPC Class Codes: G06F 11/1456 Hardware arrangements for backup
• CPC Class Codes: G06F 11/1458 Management of the backup or restore process
• CPC Class Codes: G06F 11/1469 Backup restoration techniques

Abstract

According to an aspect of the present invention, there is provided an information processing apparatus including: a connector to which a backup device is connected; a data storing unit that stores an objective data; and a processor that is configured: to write the objective data to the backup device as a backup data; to record a change log that specifies an updated part of the objective data; to detect a difference part between the objective data and the backup data when the backup device is connected to the connector; to determine whether the difference part matches the updated part specified by the change log; and if the difference part does not match the updated part, to identify a mismatching part between the difference part and the updated part as an abnormal data.

Claims

1. An information processing apparatus comprising:

a connector to which a backup device is connected;

a data storing unit that stores an objective data; and

a processor that is configured;

to write the objective data to the backup device as a backup data;

to record a change log that specifies an updated part of the objective data;

to detect a difference part between the objective data and the backup data when the backup device is connected to the connector;

to determine whether the difference part matches the updated part specified by the change log; and

if the difference part does not match the updated part, to identify a mismatching part between the difference part and the updated part as an abnormal data.

2. The information processing apparatus according to claim 1,

wherein the processor recovers the mismatching part of the objective data based on the backup data.

3. The information processing apparatus according to claim 2,

wherein the processor changes a physical address corresponding to a logical address of the mismatching part and writes a part of the backup data corresponding to the mismatching part on the changed physical address.

4. The information processing apparatus according to claim 2,

wherein the processor is configured to display a selection screen to inquire whether the mismatching part should be recovered.

5. A backup device comprising:

a connector to which an information processing apparatus is connected, the information processing apparatus being configured to store an objective data and to record a change log that specifies an updated part of the objective data;

a backup storing unit that stores a backup data; and

a processor that is configured;

to write the objective data to the backup storing unit as the backup data;

to detect a difference part between the objective data and the backup data when the information processing device is connected to the connector;

to determine whether the difference part matches the updated part specified by the change log; and

if the difference part does not match the updated part, to identify a mismatching part between the difference part and the updated part as an abnormal data.

6. The backup device according to claim 5,

wherein the processor recovers the mismatching part of the objective data based on the backup data.

7. The backup device according to claim 6,

wherein the processor changes a physical address corresponding to a logical address of the mismatching part and writes a part of the backup data corresponding to the mismatching part on the changed physical address.

8. The backup device according to claim 6,

wherein the processor controls the information processing apparatus to display a selection screen to inquire whether the mismatching part should be recovered.

9. An information processing method comprising:

writing an objective data stored in an information processing apparatus to a backup device as a backup data;

recording a change log that specifies an updated part of the objective data;

detecting a difference part between the objective data and the backup data when the information processing apparatus and the backup device are connected;

determining whether the difference part matches the updated part specified by the change log; and

if the difference part does not match the updated part, identifying a mismatching part between the difference part and the updated part as an abnormal data.