Selective disk volume cloning for virtual disk creation
Systems and methods create virtual disks for access by a virtual machine. The virtual disk can be created from marked folders such that files and folders containing sensitive data or data not necessary for the purpose of a virtual machine using the virtual disk can be omitted from the virtual disk.
1. A method comprising:
receiving a request to create a virtual disk;
in response to receiving the request, reading file system entries from a file system on a source disk, the file system having a plurality of file system entries indicating files and folders within the file system;
determining by one or more processors whether or not a file system entry for a folder is marked for inclusion on the virtual disk; and
in response to determining that the folder is marked for inclusion on the virtual disk, creating file system entries on the virtual disk for the folder and the files within the folder and including data for the folder and the files within the folder on the virtual disk.
2. The method of claim 1 , wherein including data for the folder and the files within the folder on the virtual disk comprises creating a mapping for the data for the folder and the files within the folder from the virtual disk to the source disk.
3. The method of claim 2 , wherein said creating the mapping comprises creating one or more of a first mapping comprising redirected sectors, a second mapping comprising modified sectors or a third mapping comprising remapped sectors.
4. The method of claim 1 , further comprising:
receiving an indication that a folder is to be included on the virtual disk; and
marking a file system entry associated with the folder to indicate that the folder is to be included on the virtual disk.
5. The method of claim 1 , wherein files and folders not marked for inclusion on the virtual disk are not accessible by a virtual machine accessing the virtual disk.
6. The method of claim 1 , further comprising determining to include a file in a folder that is not marked for inclusion on the virtual disk in response to determining that the file is linked to a file in a folder marked for inclusion on the virtual disk.
7. The method of claim 1 , further comprising excluding from the virtual disk a file from a folder marked for inclusion in the virtual disk.
8. A machine-readable storage medium, the machine-readable storage medium having instructions stored thereon for causing one or more processors to perform operations comprising:
receiving a request to create a virtual disk;
in response to receiving the request, reading file system entries from a file system on a source disk, the file system having a plurality of file system entries indicating files and folders within the file system;
determining whether or not a file system entry for a folder is marked for inclusion on the virtual disk; and
in response to determining that the folder is marked for inclusion on the virtual disk, creating file system entries on the virtual disk for the folder and the files within the folder and including data for the folder and the files within the folder on the virtual disk.
9. The machine-readable storage medium of claim 8 , wherein including data for the folder and the files within the folder on the virtual disk comprises creating a mapping for the data for the folder and the files within the folder from the virtual disk to the source disk.
10. The machine-readable storage medium of claim 9 , wherein the creating the mapping comprises creating one or more of a first mapping comprising redirected sectors, a second mapping comprising modified sectors or a third mapping comprising remapped sectors.
11. The machine-readable storage medium of claim 8 , wherein the operations further comprise:
receiving an indication that a folder is to be included on the virtual disk; and
marking a file system entry associated with the folder to indicate that the folder is to be included on the virtual disk.
12. The machine-readable storage medium of claim 8 , wherein files and folders not marked for inclusion on the virtual disk are not accessible by a virtual machine accessing the virtual disk.
13. The machine-readable storage medium of claim 8 , wherein the operations further include determining to include a file in a folder that is not marked for inclusion on the virtual disk in response to determining that the file is linked to a file in a folder marked for inclusion on the virtual disk.
14. The machine-readable storage medium of claim 8 , wherein the operations further include excluding from the virtual disk a file from a folder marked for inclusion in the virtual disk.
15. A system comprising:
at least one processor;
a memory coupled to the at least one processor, the memory storing instructions that when executed by the at least one processor cause the at least one processor to perform operations comprising:
receiving a request to create a virtual disk;
in response to receiving the request, reading file system entries from a file system on a source disk, the file system having a plurality of file system entries indicating files and folders within the file system;
determining whether or not a file system entry for a folder is marked for inclusion on the virtual disk; and
in response to determining that the folder is marked for inclusion on the virtual disk, creating file system entries on the virtual disk for the folder and the files within the folder and including data for the folder and the files within the folder on the virtual disk.
16. The system of claim 15 , wherein including data for the folder and the files within the folder on the virtual disk comprises creating a mapping for the data for the folder and the files within the folder from the virtual disk to the source disk.
17. The system of claim 16 , wherein the creating the mapping comprises creating one or more of a first mapping comprising redirected sectors, a second mapping comprising modified sectors or a third mapping comprising remapped sectors.
18. The system of claim 15 , wherein the operations further comprise:
receiving an indication that a folder is to be included on the virtual disk; and
marking a file system entry associated with the folder to indicate that the folder is to be included on the virtual disk.
19. The system of claim 15 , wherein files and folders not marked for inclusion on the virtual disk are not accessible by a virtual machine accessing the virtual disk.
20. The system of claim 15 , further comprising determining to include a file in a folder that is not marked for inclusion on the virtual disk in response to determining that the file is linked to a file in a folder marked for inclusion on the virtual disk.
21. The system of claim 15 , further comprising excluding from the virtual disk a file from a folder marked for inclusion in the virtual disk.
22. The system of claim 15 , wherein the file system comprises a file system conforming to a version of a New Technology File System (NTFS).