Methods and systems for improving efficiency in cloud-as-backup tier

Patent metadata

Field	Value
Publication number	US-10747458-B2
Application number	US-201715819303-A
Country	US
Kind code	B2
Filing date	Nov 21, 2017
Priority date	Nov 21, 2017
Publication date	Aug 18, 2020
Grant date	Aug 18, 2020

Abstract

Embodiments for managing data storage by one or more processors are described. An object is created with deduplicated content. A lookup is created, which includes a name of the object and at least one of an address location of the deduplicated content and a byte range of the deduplicated content. The object and the lookup are transferred from a first computing system to a second computing system.

First claim

The invention claimed is:

1. A method, by one or more processors, for managing data storage, comprising:
creating an object with deduplicated content, wherein the deduplicated content is co-dependent between a plurality of deduplicated files and a master file;
creating a plurality of partial content objects respectively corresponding to the master file and each of the plurality of deduplicated files;
creating a lookup comprising a deduplication relationship table indicating relationships between the co-dependent deduplicated files and the master file associated with the object of deduplicated content, wherein the lookup comprises a name of the object and at least one of an address location of the deduplicated content and a byte range of the deduplicated content;
transferring at least the object and the lookup from a first computing system to a second computing system; and
in response to the second computing system receiving a request to retrieve the object by the first computing system, locating and loading the plurality of partial content objects according to the lookup, wherein the deduplicated content of the object and the plurality of partial content objects is assembled into a complete object subsequently returned to the first computing system.

2. The method of claim 1 , further comprising storing the lookup as a second object.

3. The method of claim 2 , wherein the storing of the lookup as the second object comprises storing the second object in the same namespace as the object.

4. The method of claim 2 , further comprising encrypting the object and the second object.

5. The method of claim 4 , wherein the encrypting of the object and the second object occurs before the transferring of the object and the lookup from the first computing system to the second computing system.

6. The method of claim 1 , wherein the creating of the object comprises creating a copy-on-write (COW) image of the deduplicated content.

7. The method of claim 1 , wherein transferring the object and the lookup from the first computing system to the second computing system is performed through a representational state transfer (REST) application program interface (API).

8. A system for managing data storage, comprising:
at least one processor that
creates an object with deduplicated content, wherein the deduplicated content is co-dependent between a plurality of deduplicated files and a master file;
creates a plurality of partial content objects respectively corresponding to the master file and each of the plurality of deduplicated files;
creates a lookup comprising a deduplication relationship table indicating relationships between the co-dependent deduplicated files and the master file associated with the object of deduplicated content, wherein the lookup comprises a name of the object and at least one of an address location of the deduplicated content and a byte range of the deduplicated content;
transfers at least the object and the lookup from a first computing system to a second computing system; and
in response to the second computing system receiving a request to retrieve the object by the first computing system, locates and loads the plurality of partial content objects according to the lookup, wherein the deduplicated content of the object and the plurality of partial content objects is assembled into a complete object subsequently returned to the first computing system.

9. The system of claim 8 , wherein the at least one processor further stores the lookup as a second object.

10. The system of claim 9 , wherein the storing of the lookup as the second object comprises storing the second object in the same namespace as the object.

11. The system of claim 9 , wherein the at least one processor further encrypts the object and the second object.

12. The system of claim 11 , wherein the encrypting of the object and the second object occurs before the transferring of the object and the lookup from the first computing system to the second computing system.

13. The system of claim 8 , wherein the creating of the object comprises creating a copy-on-write (COW) image of the deduplicated content.

14. The system of claim 8 , wherein transferring the object and the lookup from the first computing system to the second computing system is performed through a representational state transfer (REST) application program interface (API).

15. A computer program product for managing data storage by one or more processors, the computer program product comprising a non-transitory computer-readable storage medium having computer-readable program code portions stored therein, the computer-readable program code portions comprising:
an executable portion that creates an object with deduplicated content, wherein the deduplicated content is co-dependent between a plurality of deduplicated files and a master file;
an executable portion that creates a plurality of partial content objects respectively corresponding to the master file and each of the plurality of deduplicated files;
an executable portion that creates a lookup comprising a deduplication relationship table indicating relationships between the co-dependent deduplicated files and the master file associated with the object of deduplicated content, wherein the lookup comprises a name of the object and at least one of an address location of the deduplicated content and a byte range of the deduplicated content;
an executable portion that transfers at least the object and the lookup from a first computing system to a second computing system; and
an executable portion that, in response to the second computing system receiving a request to retrieve the object by the first computing system, locates and loads the plurality of partial content objects according to the lookup, wherein the deduplicated content of the object and the plurality of partial content objects is assembled into a complete object subsequently returned to the first computing system.

16. The computer program product of claim 15 , wherein the computer-readable program code portions further include an executable portion that stores the lookup as a second object.

17. The computer program product of claim 16 , wherein the storing of the lookup as the second object comprises storing the second object in the same namespace as the object.

18. The computer program product of claim 16 , wherein the computer-readable program code portions further include an executable portion that encrypts the object and the second object.

19. The computer program product of claim 18 , wherein the encrypting of the object and the second object occurs before the transferring of the object and the lookup from the first computing system to the second computing system.

20. The computer program product of claim 15 , wherein the creating of the object comprises creating a copy-on-write (COW) image of the deduplicated content.

21. The computer program product of claim 15 , wherein transferring the object and the lookup from the first computing system to the second computing system is performed through a representational state transfer (REST) application program interface (API).

Assignees

• IBM

Inventors

• Eda Sasikanth
• Mani Anbazhagan
• Patil Sandeep
• Raut Smita J

Classifications

• H04L67/1097 Primary

  for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS] · CPC title

• G06F16/182

  Distributed file systems · CPC title

• G06F3/0641 Primary

  De-duplication techniques · CPC title

• G06F3/0608

  Saving storage space on storage systems · CPC title

• G06F3/067

  Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS] · CPC title