IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0805615
(2015-07-22)
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등록번호 |
US-9766825
(2017-09-19)
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발명자
/ 주소 |
- Bhagi, Sri Karthik
- Gutta, Sunil Kumar
- Agrawal, Vijay H.
- Pawar, Rahul S.
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
7 인용 특허 :
277 |
초록
▼
Systems and methods for performing file-level restore operations for block-level data volumes are described. In some embodiments, the systems and methods restore data from a block-level data volume contained in secondary storage by receiving a request to restore one or more files from the block-leve
Systems and methods for performing file-level restore operations for block-level data volumes are described. In some embodiments, the systems and methods restore data from a block-level data volume contained in secondary storage by receiving a request to restore one or more files from the block-level data volume, mounting a virtual GUID Partition Table (GPT) disk to the block-level data volume, accessing one or more mount paths established by the virtual GPT disk between the data agent and the block-level data volume, and browsing data from one or more files within the block-level data volume via the established one or more mount paths provided by the virtual GPT disk.
대표청구항
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1. A method performed by a data agent of an information management system for restoring data from a block-level data volume contained in at least one secondary data storage device, the method comprising: receiving a user-based request to restore one or more files from the block-level data volume;mou
1. A method performed by a data agent of an information management system for restoring data from a block-level data volume contained in at least one secondary data storage device, the method comprising: receiving a user-based request to restore one or more files from the block-level data volume;mounting at least one virtual Globally Unique Identifier (GUID) Partition Table (GPT) disk to the block-level data volume;accessing one or more mount paths established by the virtual GPT disk between the data agent and the block-level data volume; andbrowsing data from one or more files within the block-level data volume via the established one or more mount paths provided by the virtual GPT disk, wherein the browsing comprises: identifying clusters within the block-level data volume that are associated with the one or more files;translating the identified clusters into disk sectors;transferring a read request of the disk sectors to a virtual disk driver;receiving from the virtual disk driver, volume extent information (i) associated with volume extents for the one or more files within the block-level disk volume and (ii) converted by the virtual disk driver from disk extent information that was based on size and offset information associated with the disk sectors; andaccessing data associated with the one or more files within the block-level data volume using the received volume extent information associated with the volume extents for the one or more files within the block-level disk volume. 2. The method of claim 1, wherein mounting a virtual GUID Partition Table (GPT) disk to the block-level data volume includes creating a pseudo mount point to the block-level disk volume that represents a point in time image of the block-level data volume. 3. The method of claim 1, wherein mounting a virtual GUID Partition Table (GPT) disk to the block-level data volume includes launching a pseudo mount server having a client interface that mounts the virtual GPT disk to the block-level data volume. 4. The method of claim 1, wherein mounting a virtual GUID Partition Table (GPT) disk to the block-level data volume includes identifying a currently operating pseudo mount server having a client interface that mounts the virtual GPT disk to the block-level data volume. 5. The method of claim 1, wherein mounting a virtual GUID Partition Table (GPT) disk to the block-level data volume includes mounting the virtual GPT disk based on information contained in a file restore configuration file of an index cache associated with the block-level data volume. 6. The method of claim 1, wherein mounting a virtual GUID Partition Table (GPT) disk to the block-level data volume includes mounting a virtual GPT disk that includes a single partition based on a size of the block-level data volume to the block-level data volume. 7. A system for restoring data contained in a block-level data volume, the system comprising: at least one processor;at least one data storage device coupled to the at least one processor and storing instructions for implementing a process to restore data contained in a block-level data volume, wherein the process comprises: receiving, via a request component, a request to perform a file-level restore of the block-level data volume;mounting, via a pseudo mount component, a virtual Globally Unique Identifier (GUID) Partition Table (GPT) disk to the block-level data volume; andrestoring, via a restore component, data from one or more files within the block-level data volume via one or more mount paths provided by the virtual GPT disk. 8. The system of claim 7, wherein the restore component is configured to: identify clusters within the block-level data volume that are associated with the one or more files;translate the identified clusters into disk sectors;transfer a read request of the disk sectors to a virtual disk driver;receive, from the virtual disk driver, volume extent information associated with volume extents for the one or more files within the block-level disk volume and converted by the virtual disk driver from disk extent information that was based on size and offset information associated with the disk sectors; andaccess data from the one or more files within the block-level data volume using the received volume extent information associated with the volume extents for the one or more files within the block-level disk volume. 9. The system of claim 7, wherein the pseudo mount component creates a pseudo mount point to the block-level disk volume that represents a point in time image of the block-level data volume. 10. The system of claim 7, wherein the pseudo mount component launches a pseudo mount server having a client interface that mounts the virtual GPT disk to the block-level data volume. 11. The system of claim 7, wherein the pseudo mount component identifies a currently operating pseudo mount server having a client interface that mounts the virtual GPT disk to the block-level data volume. 12. The system of claim 7, wherein the pseudo mount component mounts the virtual GPT disk based on information contained in a file restore configuration file of an index cache associated with the block-level data volume. 13. The system of claim 7, wherein the pseudo mount component mounts a virtual GPT disk that includes a single partition based on a size of the block-level data volume to the block-level data volume. 14. The system of claim 7, wherein the restore component is configured to: translating, via the virtual GPT disk and a virtual disk driver, a received file restore request into a volume extent request; andrestore data associated with the volume extent request. 15. A computer-readable medium, excluding transitory propagating signals, storing instructions that, when executed by a pseudo mount server, causes the pseudo mount server to perform a method for facilitating file-level browsing of a block-level data volume, the method comprising: generating a pseudo mount point to the block-level data volume that represents a point in time image of the block-level data volume, wherein generating the pseudo mount point to the block-level data volume includes mounting a virtual Globally Unique Identifier (GUID) Partition Table (GPT) disk to the block-level data volume;translating, via the pseudo mount point, a file restore request into a volume extent request; andrestoring data associated with the volume extent request via one or more mount paths provided by the virtual GPT disk. 16. The computer-readable medium of claim 15, wherein generating a pseudo mount point to the block-level data volume that represents a point in time image of the block-level data volume includes creating the virtual GUID Partition Table (GPT). 17. The computer-readable medium of claim 15, wherein generating a pseudo mount point to the block-level data volume that represents a point in time image of the block-level data volume includes accessing a running virtual GUID Partition Table (GPT) disk and mounting the running virtual GPT disk to the block-level data volume. 18. The computer-readable medium of claim 15, wherein the virtual GUID Partition Table (GPT) disk includes a single partition based on a size of the block-level data volume to the block-level data volume. 19. The computer-readable medium of claim 15, wherein the GUID Partition Table (GPT) disk wraps the block-level data volume into a partition of the GPT disk. 20. The computer-readable medium of claim 15, wherein the block-level data volume is a secondary storage data volume that contains backup data of primary data at a block-level.
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