Metadata reconciliation

• US 9,454,549 B1
• Filed: 06/28/2013
• Issued: 09/27/2016
• Est. Priority Date: 06/28/2013
• Status: Active Grant

• Current Assignee: Emc IP Holding Company LLC (Dell Technologies Inc.)
• Original Assignee: EMC Corporation (Dell Technologies Inc.)
• Inventors: Parveen, Seema, Bachu, Kiran K.
• Primary Examiner(s): Wu, Yicun
• Application Number:
  US13/931,501
• Time in Patent Office: 1,187 Days
• Field of Search: 707/654
• US Class Current: 1/1
• CPC Class Codes: G06F 11/1448 Management of the data involved in backup or backup restore
• CPC Class Codes: G06F 11/1451 by selection of backup contents
• CPC Class Codes: G06F 11/1458 Management of the backup or restore process
• CPC Class Codes: G06F 16/184 implemented as replicated file system
• CPC Class Codes: G06F 16/188 Virtual file systems
• CPC Class Codes: G06F 16/2365 Ensuring data consistency and integrity
• CPC Class Codes: G06F 16/273 Asynchronous replication or reconciliation
• CPC Class Codes: G06F 2201/80 Database-specific techniques
• CPC Class Codes: G06F 2201/805 Real-time
• CPC Class Codes: G06F 2201/815 Virtual
• CPC Class Codes: G06F 2201/82 Solving problems relating to consistency

Abstract

Reconciling data is disclosed. It is determined whether a state of a first backup application is consistent with a state of a second backup application. In the event the state of the first backup application is not consistent with the state of the second backup application, the state of the first backup application is updated to be consistent with the state of the second backup application.

Claims

1. A system for reconciling data, comprising:

a processor configured to;

determine whether a state of a first backup application of a first site is consistent with a state of a second backup application of a second site, wherein the first backup application is configured to perform a first backup from a data storage associated with one or more virtual machines of the first site to a backup storage of the first site and the second backup application is configured to perform a second backup from the backup storage of the first site to a second backup storage, wherein the state of the first backup application and the state of the second backup application are consistent with each other in the event metadata and configuration data associated with the first backup application is consistent with metadata and configuration data associated with the second backup application; and

in the event the state of the first backup application is not consistent with the state of the second backup application, update the state of the first backup application to be consistent with the state of the second backup application; and

a memory coupled with the processor and configured to provide the processor with instructions.

2. The system of claim 1, wherein the second backup application manages the first backup application.

3. The system of claim 1, wherein the first backup application coordinates backup of a virtual environment.

4. The system of claim 1, wherein the first backup application is managed using a virtual environment management platform.

5. The system of claim 4, wherein the virtual environment management platform includes VMware vCenter.

6. The system of claim 1, wherein in the event a change to the state of the first backup application to update the state of the first backup application corresponds to an inconsistency in a backup data repository of the first backup application, the backup data repository of the first backup application is updated to be consistent with the change.

7. The system of claim 1, wherein the state of the first backup application includes metadata about a stored backup data.

8. The system of claim 1, wherein the first backup application informs the second backup application about a performed backup using a synchronization protocol.

9. The system of claim 1, wherein it is determined whether the state of the first backup application is consistent with the state of the second backup application in response to an indication that the first backup application has been restored to using a backup state.

10. The system of claim 1, wherein it is determined whether the state of the first backup application is consistent with the state of the second backup application in response to an indication from a user.

11. The system of claim 1, wherein determining whether the state of the first backup application is consistent with the state of the second backup application includes determining whether an entry of the state of the second backup application is included in the state of the first backup application.

12. The system of claim 1, wherein updating the state of the first backup application includes removing an entry in the state of the first backup application.

13. The system of claim 1, wherein updating the state of the first backup application includes adding an entry in the state of the first backup application.

14. The system of claim 1, wherein the first backup application includes a virtual backup appliance.

15. The system of claim 1, wherein the second backup application includes a master backup application.

16. The system of claim 1, wherein determining whether the state of the first backup application is consistent with the state of the second backup application includes translating a format of the state of the first backup application to a new format comparable with the state of the second backup application.

17. The system of claim 1, wherein the second backup application manages replication of backup data stored by the first backup application to a new storage location.

18. A method for reconciling data, comprising:

using a processor to determine whether a state of a first backup application of a first site is consistent with a state of a second backup application of a second site, wherein the first backup application is configured to perform a first backup from a data storage associated with one or more virtual machines of the first site to a backup storage of the first site and the second backup application is configured to perform a second backup from the backup storage of the first site to a second backup storage, wherein the state of the first backup application and the state of the second backup application are consistent with each other in the event metadata and configuration data associated with the first backup application is consistent with metadata and configuration data associated with the second backup application; and

in the event the state of the first backup application is not consistent with the state of the second backup application, updating the state of the first backup application to be consistent with the state of the second backup application.

19. A computer program product for reconciling data, the computer program product being embodied in a tangible computer readable storage medium and comprising computer instructions for:

determining whether a state of a first backup application of a first site is consistent with a state of a second backup application of a second site, wherein the first backup application is configured to perform performs a first backup from a data storage associated with one or more virtual machines of the first site to a backup storage of the first site and the second backup application is configured to perform a second backup from the backup storage of the first site to a second backup storage, wherein the state of the first backup application and a state of the second backup application are consistent with each other in the event metadata and configuration data associated with the first backup application is consistent with metadata and configuration data associated with the second backup application; and

in the event the state of the first backup application is not consistent with the state of the second backup application, updating the state of the first backup application to be consistent with the state of the second backup application.