Exposing proprietary data to a hypervisor as native hypervisor data

1. One or more non-transitory computer-readable media storing one or more programs that are configured, when executed, to cause one or more processors to perform a method, the method comprising:

identifying a proprietary disk file having a proprietary file format;

creating a plugin file corresponding to the proprietary disk file, the plugin file having a plugin file format which is different from a native hypervisor disk file format; and

exposing proprietary data from the proprietary disk file to a hypervisor as native hypervisor data using the plugin file.

2. The one or more non-transitory computer-readable media as recited in claim 1 , wherein the exposing of the proprietary data includes:

intercepting read requests directed to the plugin file; and

in response to each read request:

gathering the proprietary data from the proprietary disk file;

restructuring the proprietary data to cause the proprietary data to appear to be gathered from a native hypervisor disk file due to being structured in the native hypervisor disk file format; and

responding with the restructured data.

3. The one or more non-transitory computer-readable media as recited in claim 1 , wherein a portion of a name attribute of the plugin file falsely identifies the plugin file as having the native hypervisor disk file format.

4. The one or more non-transitory computer-readable media as recited in claim 3 , wherein the portion of the name attribute of the plugin file is a file extension of the name attribute of the plugin file.

5. The one or more non-transitory computer-readable media as recited in claim 1 , wherein the plugin file includes metadata that identifies the plugin file as having the plugin file format.

6. The one or more non-transitory computer-readable media as recited in claim 1 , wherein a data storage system external to the plugin file identifies the plugin file as having the plugin file format.

7. The one or more non-transitory computer-readable media as recited in claim 6 , wherein the data storage system stores a list of files that have the plugin file format.

8. The one or more non-transitory computer-readable media as recited in claim 1 , wherein the plugin file is a sparse file with a size attribute set to an expected size of a corresponding file having the native hypervisor disk file format.

9. The one or more non-transitory computer-readable media as recited in claim 8 , wherein the method further comprises:

intercepting a file size attribute request directed to the plugin file; and

allowing the file size attribute request to pass through unaltered and a corresponding response to pass through unaltered.

10. The one or more non-transitory computer-readable media as recited in claim 1 , wherein the exposing of the proprietary data includes:

creating a differencing disk file associated with the plugin file;

receiving write requests directed to the plugin file; and

redirecting the write requests to the differencing disk file.

11. The one or more non-transitory computer-readable media as recited in claim 1 , wherein the method further comprises:

intercepting a file open request directed to the plugin file;

determining that the plugin file has the plugin file format; and

responding to the file open request with a report that the plugin file was opened successfully.

12. The one or more non-transitory computer-readable media as recited in claim 1 , wherein the method further comprises:

intercepting a file size attribute request directed to the plugin file;

determining an expected size of a file corresponding to the plugin file having the native hypervisor disk file format; and

responding to the file size attribute request with the expected size.

13. The one or more non-transitory computer-readable media as recited in claim 1 , wherein the exposing of the proprietary data includes:

intercepting a write request directed to a particular location in the plugin file;

executing the write request by storing data from the write request in a location in the plugin file or in a location external to the plugin file with the data structured in the native hypervisor disk file format; and

responding to the write request with a report that the write request was executed successfully.

14. The one or more non-transitory computer-readable media as recited in claim 13 , wherein the method further comprises:

intercepting a subsequent read request directed to the particular location in the plugin file; and

responding to the subsequent read request with second data gathered from the location where the data from the write request was previously stored, the second data appearing to be gathered from a native hypervisor disk file due to being structured in the native hypervisor disk file format.