Combined computer disaster recovery and migration tool for effective disaster recovery as well as the backup and migration of user- and system-specific information

• US 8,224,784 B2
• Filed: 08/13/2004
• Issued: 07/17/2012
• Est. Priority Date: 08/13/2004
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Henrickson, David L.
• Primary Examiner(s): Breene, John E
• Assistant Examiner(s): Raab, Christopher J
• Application Number:
  US10/917,637
• Publication Number:
  US 20060036658A1
• Time in Patent Office: 2,895 Days
• Field of Search: 709/221, 714/4.11, 714/4.12, 707/654, 707/659
• US Class Current: 707/654
• CPC Class Codes: G06F 11/1458 Management of the backup or restore process
• CPC Class Codes: G06F 11/1464 for networked environments
• CPC Class Codes: G06F 11/1469 Backup restoration techniques

Abstract

Computer tools and methods novelly combine periodic backup and restore features with migration features to transfer the components of a failed system to a new system. As well as backing up and transferring critical data files during the disaster recovery operation, an aspect of the present invention also transfers, inter alia, applications, user states, hardware settings, software settings, user preferences and other user settings, menus, and directories. In another aspect of the present invention, a network of shared end-user computers periodically backs up each individual end-user computer to a central instrumentality, in a novel manner to reduce storage and time requirements. That is, redundancies for the end-user computer backup files are eliminated or greatly reduced by only making reference to but not storing components that are generic to the system, and further for each previously stored component, only storing differential or incremental information, unless predefined conditions are met.

Claims

1. A method, comprising:

determining a nature of changes made to respective components of a user state stored on a source computer;

classifying respective components into at least one of a plurality of backup classes based at least in part upon the determined nature of changes to respective components of the user state;

periodically storing the respective components of the user state on a backup computer according to predetermined schedules associated with the respective backup classes, the respective schedules based at least in part upon at least one of a time that has lapsed since a component was last stored and a percentage change of the component since the component was last stored;

monitoring the source computer to identify at least one of a system failure and a predetermined drop in capacity; and

if at least one of the system failure and the predetermined drop in capacity is identified, transferring at least a portion of the stored user state of the source computer to a target computer that is dissimilar in at least one of hardware and operating system relative to the source computer, transferring at least a portion of the stored user state comprising;

transferring a portion of the user state that will not at least one of hinder an operation of the target computer and cause instability in the target computer from the backup computer to the target computer, the transferred portion of the user state comprising at least one of an application and a user-specific setting, the target computer configured to execute the transferred portion of the user state; and

not transferring a portion of the user state that will at least one of hinder an operation of the target computer and cause instability in the target computer from the backup computer to the target computer,

at least a portion of the method implemented at least in part via a processor.

2. The method of claim 1, the source computer and the target computer comprising end-user devices and the backup computer comprising a device that is shared amongst at least the source computer and the target computer.

3. The method of claim 1, the transferred portion of the stored user state comprising at least one operating system.

4. The method of claim 1, comprising:

identifying a portion of the user state of the source computer that is comprised in a portion of a user state of a second source computer that is stored in the backup computer; and

linking the source computer with the portion of the user state of the second source computer that is stored in the backup computer such that redundant portions of user state from the source computer and the second source computer are not stored in the backup computer.

5. The method of claim 1, comprising, before transferring the at least a portion of the stored user state to the target computer, receiving through a web interface an instruction to transfer at least a portion of the user state to the target computer.

6. The method of claim 1, comprising:

adjusting the predetermined schedules associated with one or more of the backup classes according to knowledge gained regarding a more efficient way of periodically storing the user state on the backup computer.

7. The method of claim 1, comprising:

performing a full backup of the user state to the backup computer during an initial backup; and

subsequent to the initial backup;

performing an incremental backup of at least one component of the user state if a total amount of change since a last backup is less than a predetermined amount, and

performing a full backup of at least one component of the user state if the total amount of change since a last backup is equal to or greater than a predetermined amount.

8. A system, comprising:

a backup component configured to;

determine a nature of changes made to respective components of a user state stored on a source computer;

classify respective components into at least one of a plurality of backup classes based at least in part upon the determined nature of changes to respective components of the user state; and

periodically store the respective components of the user state on a backup computer according to predetermined schedules associated with the respective backup classes, the respective schedules based at least in part upon at least one of a time that has lapsed since a component was last stored and a percentage change of the component since the component was last stored; and

a migration component configured to;

monitor the source computer to identify at least one of a system failure and a predetermined drop in capacity; and

if at least one of the system failure and the predetermined drop in capacity is identified, transfer at least a portion of the stored user state of the source computer to a target computer that is dissimilar in at least one of hardware and operating system relative to the source computer, transferring at least a portion of the stored user state comprising;

transferring a portion of the user state that will not at least one of hinder an operation of the target computer and cause instability in the target computer from the backup computer to the target computer, the transferred portion of the user state comprising at least one of an application and a user-specific setting, the target computer configured to execute the transferred portion of the user state; and

not transferring a portion of the user state that will at least one of hinder an operation of the target computer and cause instability in the target computer from the backup computer to the target computer,

at least some of at least one of the backup component and the migration component implemented at least in part via a processor.

9. The system of claim 8, the source computer and the target computer comprising end-user devices and the backup computer comprising a device that is shared amongst at least the source computer and the target computer.

10. The system of claim 8, the transferred portion of the stored user state comprising at least one application.

11. The system of claim 8, the transferred portion of the stored user state comprising at least one operating system.

12. The system of claim 8, the backup component configured to:

identify a portion of the user state of the source computer that is comprised in a portion of a user state of a second source computer that is stored in the backup computer; and

link the source computer with the portion of the user state of the second source computer that is stored in the backup computer such that redundant portions of user state from the source computer and the second source computer are not stored in the backup computer.

13. The system of claim 8, comprising a transfer component configured to receive through a web interface an instruction to transfer at least a portion of the user state to the target computer before transferring the at least a portion of the stored user state to the target computer.

14. A computer readable medium comprising instructions that when executed by a processor on a computer perform method, comprising:

determining a nature of changes made to respective components of a user state stored on a source computer;

classifying respective components into at least one of a plurality of backup classes based at least in part upon the determined nature of changes to respective components of the user state;

periodically storing the respective components of the user state on a backup computer according to predetermined schedules associated with the respective backup classes, the respective schedules based at least in part upon at least one of a time that has lapsed since a component was last stored and a percentage change of the component since the component was last stored;

monitoring the source computer to identify at least one of a system failure and a predetermined drop in capacity; and

if at least one of the system failure and the predetermined drop in capacity is identified, transferring at least a portion of the stored user state of the source computer to a target computer that is dissimilar in at least one of hardware and operating system relative to the source computer, transferring at least a portion of the stored user state comprising;

transferring a portion of the user state that will not at least one of hinder an operation of the target computer and cause instability in the target computer from the backup computer to the target computer, the transferred portion of the user state comprising at least one of an application and a user-specific setting, the target computer configured to execute the transferred portion of the user state; and

not transferring a portion of the user state that will at least one of hinder an operation of the target computer and cause instability in the target computer from the backup computer to the target computer.

15. The computer readable medium of claim 14, the source computer and the target computer comprising end-user devices and the backup computer comprising a device that is shared amongst at least the source computer and the target computer.

16. The computer readable medium of claim 14, the transferred portion of the stored user state comprising at least one operating system.

17. The computer readable medium of claim 14, the method comprising:

identifying a portion of the user state of the source computer that is comprised in a portion of a user state of a second source computer that is stored in the backup computer; and

linking the source computer with the portion of the user state of the second source computer that is stored in the backup computer such that redundant portions of user state from the source computer and the second source computer are not stored in the backup computer.

18. The computer readable medium of claim 14, the method comprising receiving through a web interface an instruction to transfer at least a portion of the user state to the target computer before transferring the at least a portion of the stored user state to the target computer.

19. The computer readable medium of claim 14, the method comprising:

performing a full backup of the user state to the backup computer during an initial backup; and

subsequent to the initial backup;

performing an incremental backup of at least one component of the user state if a total amount of change since a last backup is less than a predetermined amount, and

performing a full backup of at least one component of the user state if the total amount of change since a last backup is equal to or greater than a predetermined amount.

20. The computer readable medium of claim 14, the method comprising adjusting the predetermined schedules associated with one or more of the backup classes according to knowledge gained regarding a more efficient way of periodically storing the user state on the backup computer.