CREATING AND UTILIZING NETWORK RESTORE POINTS

• US 20120143826A1
• Filed: 02/13/2012
• Published: 06/07/2012
• Est. Priority Date: 12/19/2007
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Spektor, Daron, Mercer, David, Hay, William D.
• Granted Patent: US 8,612,391 B2
• Time in Patent Office: Days
• US Class Current: 707/649
• CPC Class Codes: G06F 16/00 Information retrieval; Database structures therefor; File system structures therefor

Abstract

The creation and utilization of network restore points is provided by a schema associated with a structured data set that can be conveniently backed up by periodically taking snapshots of the structured data to establish a series of restore points that can be used in the event that the primary structured data becomes lost or corrupted. In general, the snapshots are only taken after the structured data set has undergone a change in content, although they may be taken at other times as well. The snapshot may be taken by a network restore point engine that can be accessed by a user over the Internet. In addition, the snapshot may be stored on an Internet-based storage medium or it may be pushed to or pulled by the client so that the snapshot resides on a client-resident storage medium.

Claims

1. A method of providing a backup for structured data residing on a first data store, the method comprising the steps of:

determining that at least one structured data set, from among a plurality of structured data sets stored on the first data store, is eligible for backup, said at least one structured data set being eligible for backup when the at least one structured data set has changed since a previous backup beyond a prescribed threshold, said prescribed threshold being reached when a sum of all weights that have been assigned to all changes in the structured data since a last backup equals or exceeds a prescribed amount;

upon determining that at least one structured data set is eligible for backup, acquiring from the first data store a snapshot of at least the changes in the at least one structured data set since the previous backup; and

storing the snapshot on a second data store.

2. The method of claim 1 in which the at least one structured data set includes a schema and underlying data, the changes in the structured data since the last backup being at least one of changes in the schema or the underlying data.

3. The method of claim 1 in which the at least one structured data set includes a schema and underlying data, the changes in the structured data since the last backup including changes in the underlying data.

4. The method of claim 1 in which at least one of the first and second data stores is accessible to a client generating the at least one structured data set over an Internet connection.

5. The method of claim 1 in which the determining and the acquiring is performed by a cloud-server.

6. The method of claim 1 further comprising storing the snapshot in a cloud-based data store.

7. The method of claim 1 receiving a request to initiate the backup from a client-based browser.

8. The method of claim 1 in which different weights are assigned to different types of changes in the structured data.

9. The method of claim 1 in which a greater weight is assigned to a change that adds underlying data than a weight assigned to a change that deletes an equivalent amount of underlying data.

10. The method of claim 1 including a further step of pushing, or receiving a request to pull, the snapshot over an Internet for storage on a client that stores the at least one structured data set.

11. The method of claim 1 further comprising maintaining a plurality of previously acquired snapshots that each serve as a restoration point in accordance with a retention policy.

12. A method for delivering a cloud service to a client, comprising:

maintaining, via the cloud service, a first backup of at least one structured data set associated with the client;

obtaining a second backup of the least one structured data when the at least one structured data set has changed since the first backup beyond a prescribed threshold, said prescribed threshold being reached when a sum of all weights that have been assigned to all changes in the structured data set since the first backup exceeds a prescribed amount; and

storing, via the cloud service, the second backup of the at least one structured data set.

13. The method of claim 12 in which the second backup includes only the changes to the structured data set which have occurred since the first backup.

14. The method of claim 12 in which the first backup includes a representation of the structured data set at a given point in time.

15. The method of claim 12 in which the cloud service stores the second backup on a cloud-based data store.

16. The method of claim 12 further comprising receiving the at least one structured data set from the client.

17. The method of claim 12 in which the at least one structured data set includes a schema and underlying data, the changes in the structured data since the first backup including changes in the underlying data.

18. The method of claim 12 in which different weights are assigned to different types of changes in the structured data set.

19. A network restoration arrangement for backing up a structured data set, comprising:

a cloud-based primary storage medium configured to store a plurality of structured data sets each associated with a user;

a network restore point engine for automatically establishing restore points of the structured data sets when an accumulation of changes in each respective structured data set since a previous backup exceeds a prescribed amount, said accumulation of changes being equal to a sum of all weights that have been assigned to all changes in the structured data set since the last backup; and

a secondary storage medium on which the restore points are stored by the network restore point engine.

20. The network restoration arrangement of claim 19 in which the network restore point engine is further configured to establish a restore point for reach respective structured data set by acquiring a snapshot of a schema and the underlying data associated with each respective structured data set.