Searchable backups

• US 20070043705A1
• Filed: 08/18/2005
• Published: 02/22/2007
• Est. Priority Date: 08/18/2005
• Status: Abandoned Application

• Current Assignee: Emc IP Holding Company LLC (Dell Technologies Inc.)
• Original Assignee: EMC Corporation (Dell Technologies Inc.)
• Inventors: Periyagaram, Subramanian, Kaushik, Akhil, Suryanarayanan, Rangarajan, Xing, Jian
• Application Number:
  US11/207,606
• Publication Number:
  US 20070043705A1
• Time in Patent Office: Days
• 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 11/1469 Backup restoration techniques

Abstract

Facilitating a search of backup data is disclosed. Data associated with at least a portion of the backup data is received. A searchable index of the backup data is generated based at least in part on the received data. The searchable index includes an index data indicating a location within the backup data of an object comprising the backup data.

Claims

1. A method of facilitating a search of backup data, comprising:

receiving data associated with at least a portion of the backup data; and

generating, based at least in part on the received data, a searchable index of the backup data;

wherein the searchable index includes an index data indicating a location within the backup data of an object comprising the backup data.

2. A method as recited in claim 1, wherein receiving data associated with at least a portion of the backup data includes receiving for each of one or more objects comprising the backup data a content data associated with the object and a location data indicating a location of the object within the backup data.

3. A method as recited in claim 2, wherein the searchable index is generated based at least in part on the content data and the location data.

4. A method as recited in claim 1, further comprising receiving a search request comprising query data associated with the object and using the query data and the searchable index to determine the location of the object within the backup data.

5. A method as recited in claim 4, further comprising presenting a search result associated with the object and receiving in response a request to restore the object using the backup data.

6. A method as recited in claim 5, further comprising restoring the object using the backup data.

7. A method as recited in claim 1, further comprising generating, based at least in part on the backup data, said data associated with at least a portion of the backup data.

8. A method as recited in claim 1, wherein receiving data associated with at least a portion of the backup data comprises receiving substantially contemporaneously with its generation by a backup operation a content data portion of the backup data.

9. A method as recited in claim 1, further comprising using the searchable index to determine the location of the object within the backup data without accessing the backup data.

10. A method as recited in claim 1, further comprising using the searchable index to determine the location of the object within the backup data without first using the backup data to restore a set of production data with which the backup data is associated.

11. A method as recited in claim 1, wherein the object comprises a file, directory, or other file system object.

12. A method as recited in claim 1, wherein the object may exist in one or more locations within the backup data.

13. A method as recited in claim 1, wherein the object and one or more variants thereof may exist in different respective locations within the backup data.

14. A method as recited in claim 1, wherein the object is one of a set of one or more objects comprising the backup data.

15. A method as recited in claim 1, wherein the object is one of a set of one or more objects comprising the backup data and the searchable index includes for each of said one or more objects an index data indicating a location of that object within the backup data.

16. A method as recited in claim 1, wherein the backup data comprises data generated in connection with two or more backup operations performed at different times.

17. A method as recited in claim 1, wherein generating a searchable index includes one or more of the following:

decompressing backup data, converting backup data, translating backup data, transferring backup data, indexing backup data, generating keywords associated with backup data, and any processing required for data search and retrieval, on a prescribed basis, periodically, or substantially concurrent with addition, modification, and deletion of the backup data.

18. A method as recited in claim 1, wherein the backup data includes one or more of the following:

backup-to-disk data, backup-to-tape data, compressed data, snapshot data, generational backup data, and backup stream data.

19. A method as recited in claim 1, wherein the searchable index is stored in one or more of the following:

hard drives, NAS (Network Attached Storage), SAN (Storage Area Network), backup streams, any optical and magnetic storage medium, and any fixed or networked storages.

20. A method as recited in claim 1, wherein the searchable index is stored together with the backup data.

21. A method as recited in claim 1, wherein the location comprises a file path identifier.

22. A method as recited in claim 1, wherein the location is indicated by an identifier that is independent of any physical or logical data location and independent of type of backup data.

23. A method as recited in claim 1, wherein the object may be relocated, converted, translated, or compressed without altering the index data.

24. A method as recited in claim 1, wherein the backup data and a destination to which the object is requested to be restored exist inside a same physical storage unit.

25. A method as recited in claim 1, wherein the backup data and a destination to which the object is requested to be restored are connected together through any public or private or a combination thereof, including an Ethernet, serial/parallel bus, intranet, Internet, NAS, SAN, LAN, WAN, and other forms of connecting multiple systems and or groups of systems together.

26. A method as recited in claim 1, further including using the searchable index to generate a search result including by compiling multiple intermediate search results together.

27. A method as recited in claim 1, further comprising restoring the object to a destination storage including by one or more of the following:

translating the index data to one or more locations within the backup data, locating data associated the index data, decompressing data, modifying data, converting data, translating data, and merging data.

28. A system for facilitating a search of a backup data, comprising:

a communication interface configured to receive data associated with at least a portion of the backup data; and

a processor configured to generate based at least in part on the received data, a searchable index of the backup data;

wherein the searchable index includes an index data indicating a location within the backup data of an object comprising the backup data.

29. A system as recited in claim 28, wherein the received data includes a content data associated with one or more objects comprising the at least a portion of the backup data and a location data indicating a location of the one or more objects within the backup data.

30. A system as recited in claim 28, wherein the processor is further configured to generate, based at least in part on the backup data, said data associated with at least a portion of the backup data.

31. A system as recited in claim 28, wherein the communication interface received data associated with at least a portion of the backup data substantially contemporaneously with the data generation by a backup operation a content data portion of the backup data.

32. A system as recited in claim 28, wherein the searchable index is used to determine the location of the object within the backup data without accessing the backup data.

33. A system as recited in claim 28, wherein the searchable index is used to determine the location of the object within the backup data without first using the backup data to restore a set of production data with which the backup data is associated.

34. A computer program product for facilitating a search of backup data, the computer program product being embodied in a computer readable medium and comprising computer instructions for:

receiving data associated with at least a portion of the backup data; and

generating, based at least in part on the received data, a searchable index of the backup data;

wherein the searchable index includes an index data indicating a location within the backup data of an object comprising the backup data.