Consistent backup of electronic information

• US 8,775,378 B2
• Filed: 10/23/2012
• Issued: 07/08/2014
• Est. Priority Date: 08/04/2006
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Apple Inc.
• Inventors: Cisler, Pavel, Weiss, Eric A., McInerney, Peter, Giampaolo, Dominic B.
• Primary Examiner(s): Richardson, James E
• Application Number:
  US13/658,619
• Publication Number:
  US 20130046734A1
• Time in Patent Office: 623 Days
• Field of Search: 707643-647, 707/690, 707/640
• US Class Current: 707/646
• CPC Class Codes: G06F 11/1466 to make the backup process non-disruptive

Abstract

Systems and methods are provided for performing backup operations while a user is using a device. In one implementation, a method is provided. A backup operation of data including a plurality of related items is initiated. Modifications to one or more items of the plurality of related items are monitored for during the backup operation. The backup operation is completed. If a modification occurred to one or more items, a second backup operation is performed for the modified items.

Claims

1. A computer-implemented method performed by one or more processors for backing up files, the method comprising the following operations:

initiating a backup operation of a plurality of related files;

determining a first file in the plurality of related files was modified prior to executing the backup operation on the first file;

executing the backup operation on the modified first file to generate a backed-up file of the modified first file;

determining the backed-up file of the modified first file includes data inconsistent with data in a backed-up file of a second file in the plurality of related files, wherein the determination includes comparing data in the backed-up file of the modified first file with related data in the backed-up file of the second file; and

replacing the backed-up file of the modified first file with a version of the first file that existed prior to the modified first file.

2. The method of claim 1, wherein the plurality of items are interdependent.

3. The method of claim 1, wherein determining the first file in the plurality of related files was modified includes identifying an event notification associated with the first file in the plurality of related files.

4. The method of claim 1, further comprising monitoring for modifications to one or more items of the plurality of related items while replacing the backed-up file of the modified first file.

5. The method of claim 1, further comprising determining a maximum number of backup operations to perform to complete a backup operation without modifications occurring during the backup operations.

6. The method of claim 5, further comprising generating an alert in response to reaching the maximum number of backup operations.

7. The method of claim 6, wherein generating an alert includes notifying a user.

8. The method of claim 5, further comprising suspending the backup operation for a predefined period of time in response to reaching the maximum number of backup operations.

9. A computer program product encoded on a tangible, non-transitory storage medium, the product comprising computer readable instructions for causing one or more processors to perform operations comprising:

initiating a backup operation of a plurality of related files;

determining a first file in the plurality of related files was modified prior to executing the backup operation on the first file;

executing the backup operation on the modified first file to generate a backed-up file of the modified first file;

determining the backed-up file of the modified first file includes data inconsistent with data in a backed-up file of a second file in the plurality of related files, wherein the determination includes comparing data in the backed-up file of the modified first file with related data in the backed-up file of the second file; and

replacing the backed-up file of the modified first file with a version of the first file that existed prior to the modified first file.

10. The computer program product of claim 9, wherein the plurality of items are interdependent.

11. The computer program product of claim 9, wherein determining the first file in the plurality of related files was modified includes identifying an event notification associated with the first file in the plurality of related files.

12. The computer program product of claim 9, the instructions further comprising monitoring for modifications to one or more items of the plurality of related items while replacing the backed-up file of the modified first file.

13. The computer program product of claim 9, the instructions further comprising determining a maximum number of backup operations to perform to complete a backup operation without modifications occurring during the backup operations.

14. The computer program product of claim 13, the instructions further comprising generating an alert in response to reaching the maximum number of backup operations.

15. The computer program product of claim 14, wherein generating an alert includes notifying a user.

16. The computer program product of claim 13, the instructions further comprising suspending the backup operation for a predefined period of time in response to reaching the maximum number of backup operations.

17. A device, comprising:

memory for storing back up data; and

one or more processors configured to;

initiate a backup operation of a plurality of related files;

determine a first file in the plurality of related files was modified prior to executing the backup operation on the first file;

execute the backup operation on the modified first file to generate a backed-up file of the modified first file;

determine the backed-up file of the modified first file includes data inconsistent with data in a backed-up file of a second file in the plurality of related files, wherein the determination includes comparing data in the backed-up file of the modified first file with related data in the backed-up file of the second file; and

replace the backed-up file of the modified first file with a version of the first file that existed prior to the modified first file.

18. The device of claim 17, wherein the processors configured to determine the first file in the plurality of related files was modified includes the processors configured to identify an event notification associated with the first file in the plurality of related files.

19. The device of claim 17, the processors further configured to monitor for modifications to one or more items of the plurality of related items while replacing the backed-up file of the modified first file.

20. The device of claim 17, the processors further configured to determine a maximum number of backup operations to perform to complete a backup operation without modifications occurring during the backup operations.