System and method for exporting data directly from deduplication storage to non-deduplication storage

• US 20080243769A1
• Filed: 03/30/2007
• Published: 10/02/2008
• Est. Priority Date: 03/30/2007
• Status: Abandoned Application

• Current Assignee: Symantec Corporation (NortonLifeLock Inc.)
• Original Assignee: Symantec Corporation (NortonLifeLock Inc.)
• Inventors: Reker, Matthew M., Arbour, Frederick M.
• Application Number:
  US11/731,178
• Publication Number:
  US 20080243769A1
• Time in Patent Office: Days
• US Class Current: 707/2
• CPC Class Codes: G06F 11/1448 Management of the data involved in backup or backup restore
• CPC Class Codes: G06F 11/1453 using de-duplication of the data
• CPC Class Codes: G06F 11/1456 Hardware arrangements for backup
• CPC Class Codes: G06F 11/1464 for networked environments

Abstract

A method, system, and computer-readable storage medium are disclosed for exporting data from a deduplication data store to a non-deduplication data store. A set of data may be stored in the deduplication data store in a format eliminating one or more duplicates of data objects in the set of data. The set of data in the deduplication data store may be stored separately from metadata describing the set of data. The set of data stored in the deduplication data store may be read. The set of data read from the deduplication data store and the metadata may be stored in a non-deduplication data store. In the non-deduplication data store, the set of data is stored in a format preserving the one or more duplicates of data objects in the set of data.

Claims

1. A method comprising:

reading a set of data stored in a deduplication data store, wherein the set of data is stored in the deduplication data store in a format eliminating one or more duplicates of data objects in the set of data, and wherein the set of data in the deduplication data store is stored separately from metadata describing the set of data; and

storing the set of data read from the deduplication data store and the metadata in a non-deduplication data store, wherein the set of data is stored in the non-deduplication data store in a format preserving the one or more duplicates of data objects in the set of data.

2. The method of claim 1,

wherein reading the set of data stored in the deduplication data store comprises assembling a plurality of data objects in the set of data using a plurality of pointers to a plurality of locations of the plurality of data objects in the deduplication data store.

3. The method of claim 1,

wherein reading the set of data stored in the deduplication data store comprises bypassing a deduplication data store manager to read the set of data from one or more storage containers in the deduplication data store.

4. The method of claim 1,

wherein storing the set of data read from the deduplication data store with metadata in the non-deduplication data store comprises placing the set of data and the metadata in a backup stream, wherein the backup stream is sent to the non-deduplication data store.

5. The method of claim 1, further comprising:

specifying one or more events;

wherein reading the set of data from the deduplication data store and storing the set of data with the metadata in the non-deduplication data store are triggered by one of the events.

6. The method of claim 1, further comprising:

specifying one or more filters; and

determining the set of data to be read from the deduplication store by applying the one or more filters.

7. The method of claim 1, further comprising:

backing up the set of data from an original data store to the deduplication data store before reading the set of data from the deduplication data store.

8. The method of claim 7, further comprising:

restoring the set of data from the non-deduplication data store to the original data store.

9. The method of claim 7, further comprising:

storing a catalog describing the set of data stored in the non-deduplication data store, wherein the catalog comprises an indication of the original data store.

10. The method of claim 1, further comprising:

deleting the set of data from the deduplication data store after storing the set of data in the non-deduplication data store.

11. A computer-readable storage medium comprising program instructions, wherein the program instructions are computer-executable to implement:

reading a set of data stored in a deduplication data store, wherein the set of data is stored in the deduplication data store in a format eliminating one or more duplicates of data objects in the set of data, and wherein the set of data in the deduplication data store is stored separately from metadata describing the set of data; and

storing the set of data read from the deduplication data store and the metadata in a non-deduplication data store, wherein the set of data is stored in the non-deduplication data store in a format preserving the one or more duplicates of data objects in the set of data.

12. The computer-readable storage medium of claim 11,

wherein reading the set of data from the deduplication data store comprises assembling a plurality of data objects in the set of data using a plurality of pointers to a plurality of locations of the plurality of data objects in the deduplication data store.

13. The computer-readable storage medium of claim 11,

wherein reading the set of data from the deduplication data store comprises bypassing a deduplication data store manager to read the set of data from one or more storage containers in the deduplication data store.

14. The computer-readable storage medium of claim 11,

wherein storing the set of data read from the deduplication data store with metadata in the non-deduplication data store comprises placing the set of data and the metadata in a backup stream, wherein the backup stream is sent to the non-deduplication data store.

15. A system comprising:

a deduplication data store, wherein the deduplication data store is configured to store a set of data in a format eliminating one or more duplicates of data objects in the set of data, and wherein the set of data in the deduplication data store is stored separately from metadata describing the set of data;

a non-deduplication data store; and

a computer system coupled to the deduplication data store and the non-deduplication data store, wherein the computer system comprises at least one processor and a memory, wherein the memory comprises program instructions executable by the at least one processor to;

read the set of data stored in the deduplication data store; and

send the set of data read from the deduplication data store and the metadata to the non-deduplication data store;

wherein the non-deduplication data store is configured to store the set of data and the metadata in a format preserving the one or more duplicates of data objects in the set of data.

16. The system of claim 15,

wherein, in reading the set of data from the deduplication data store, the program instructions are executable by the at least one processor to assemble a plurality of data objects in the set of data using a plurality of pointers to a plurality of locations of the plurality of data objects in the deduplication data store.

17. The system of claim 15,

wherein, in reading the set of data from the deduplication data store, the program instructions are executable by the at least one processor to bypass a deduplication data store manager to read the set of data from one or more storage containers in the deduplication data store.

18. The system of claim 15,

wherein, in sending the set of data read from the deduplication data store and the metadata to the non-deduplication data store, the program instructions are executable by the at least one processor to place the set of data and the metadata in a backup stream.

19. The system of claim 15, further comprising:

an original data store;

wherein the set of data in the deduplication data store is backed up from the original data store;

wherein an indication of the original data store is stored with the set of data in the deduplication data store; and

wherein an indication of the original data store is stored with the set of data in the non-deduplication data store.

20. A system comprising:

means for reading a set of data stored in a deduplication data store, wherein the set of data is stored in the deduplication data store in a format eliminating one or more duplicates of data objects in the set of data, and wherein the set of data in the deduplication data store is stored separately from metadata describing the set of data; and

means for storing the set of data read from the deduplication data store and the metadata in a non-deduplication data store, wherein the set of data is stored in the non-deduplication data store in a format preserving the one or more duplicates of data objects in the set of data.