Cloud edition and retrieve

1. A method, comprising:

generating a cloud instantiation of a secondary storage system;

receiving an indication to virtually rebuild one or more secondary storage clusters based on a snapshot archive stored in cloud storage, wherein the snapshot archive is comprised of serialized data, wherein the serialized data is comprised of a flat set of data blocks, wherein each data block included in the flat set of data blocks corresponds to one of a plurality of nodes of a tree data structure, wherein the tree data structure is comprised of a root node, one or more intermediate nodes, and one or more leaf nodes;

virtually rebuilding the one or more secondary storage clusters including by reconstituting the tree data structure in the cloud instantiation of the secondary storage system based on the serialized data included in the snapshot archive, wherein the reconstituted tree data structure is comprised of at least the root node, one of the one or more intermediate nodes, and one of the one or more leaf nodes; and

providing a copy of at least a portion of data of the one or more rebuilt storage clusters in the cloud instantiation to restore at least the portion of data to a user destination system.

2. The method of claim 1 , further comprising receiving an indication that the secondary storage system is offline.

3. The method of claim 2 , wherein the indication that the secondary storage system is offline includes a request to generate the cloud instantiation of the secondary storage system.

4. The method of claim 3 , further comprising authenticating a user associated with the request.

5. The method of claim 4 , further comprising in response to authenticating the user associated with the request, providing a list of one or more snapshot archives available to restore.

6. The method of claim 1 , wherein generating the cloud instantiation of the secondary storage system includes provisioning cloud resources for the cloud instantiation of the secondary storage system.

7. The method of claim 6 , wherein the provisioned cloud resources include a plurality of virtual cloud instances.

8. The method of claim 6 , wherein the provisioned cloud resources include a same storage capacity as the secondary storage system.

9. The method of claim 1 , wherein the tree data structure is reconstituted by deserializing the serialized data.

10. The method of claim 1 , wherein the snapshot archive corresponds to a state of file system data associated with a primary system at a particular moment in time.

11. A system, comprising:

a processor configured to:

generate a cloud instantiation of a secondary storage system;

receive an indication to virtually rebuild one or more secondary storage clusters based on a snapshot archive stored in cloud storage, wherein the snapshot archive is comprised of serialized data, wherein the serialized data is comprised of a flat set of data blocks, wherein each data block included in the flat set of data blocks corresponds to one of a plurality of nodes of a tree data structure, wherein the tree data structure is comprised of a root node, one or more intermediate nodes, and one or more leaf nodes; and

virtually rebuild the one or more secondary storage clusters including by reconstituting the tree data structure in the cloud instantiation of the secondary storage system based on the serialized data included in the snapshot archive; and

a communication interface coupled to the processor and configured to provide a copy of at least a portion of data of the one or more rebuilt storage clusters in the cloud instantiation to restore at least the portion of data to a user destination system.

12. The system of claim 11 , wherein the communication interface is further configured to receive the indication that the secondary storage system is offline.

13. The system of claim 12 , wherein the indication that the secondary storage system is offline includes a request to generate the cloud instantiation of the secondary storage system.

14. The system of claim 13 , wherein the processor is further configured to authenticate a user associated with the request.

15. The system of claim 14 , wherein in response to an authentication of the user associated with the request, the processor is further configured to provide a list of one or more snapshot archives available to restore.

16. The system of claim 11 , wherein to generate the cloud instantiation of the secondary storage system, the processor is further configured to provision cloud resources for the cloud instantiation of the secondary storage system.

17. The system of claim 16 , wherein the provisioned cloud resources include a plurality of virtual cloud instances.

18. The system of claim 16 , wherein the provisioned cloud resources include a same storage capacity as the secondary storage system.

19. A computer program product, the computer program product being embodied in a non-transitory computer readable storage medium and comprising computer instructions for:

generating a cloud instantiation of a secondary storage system;

receiving an indication to virtually rebuild one or more secondary storage clusters based on a snapshot archive stored in cloud storage, wherein the snapshot archive is comprised of serialized data, wherein the serialized data is comprised of a flat set of data blocks, wherein each data block included in the flat set of data blocks corresponds to one of a plurality of nodes of a tree data structure, wherein the tree data structure is comprised of a root node, one or more intermediate nodes, and one or more leaf nodes;

virtually rebuilding the one or more secondary storage clusters including by reconstituting the tree data structure in the cloud instantiation of the secondary storage system based on the serialized data included in the snapshot archive, wherein the reconstituted tree data structure is comprised of at least the root node, one of the one or more intermediate nodes, and one of the one or more leaf nodes; and

providing a copy of at least a portion of data of the one or more rebuilt storage clusters in the cloud instantiation to restore at least the portion of data to a user destination system.

20. The computer program product of claim 19 , further comprising computer instructions for generating the cloud instantiation of the secondary storage system includes provisioning cloud resources for the cloud instantiation of the secondary storage system.