Systems and methods for performing storage operations in a computer network

• US 9,940,043 B2
• Filed: 10/28/2015
• Issued: 04/10/2018
• Est. Priority Date: 04/03/2003
• Status: Active Grant

• Current Assignee: CommVault Systems Incorporated
• Original Assignee: CommVault Systems Incorporated
• Inventors: Kottomtharayil, Rajiv, Gokhale, Parag, Prahlad, Anand, Vijayan, Manoj Kumar, Ngo, David, Devassy, Varghese
• Primary Examiner(s): ELMORE, STEPHEN C
• Application Number:
  US14/925,554
• Publication Number:
  US 20160147469A1
• Time in Patent Office: 895 Days
• Field of Search: 711154, 711156, 711162, 714 63, 714 632, 707639, 707649
• CPC Class Codes: G06F 11/1448 Management of the data involved in backup or backup restore
• CPC Class Codes: G06F 11/1464 for networked environments
• CPC Class Codes: G06F 11/1469 Backup restoration techniques
• CPC Class Codes: G06F 16/2228 Indexing structures
• CPC Class Codes: G06F 16/951 Indexing; Web crawling techniques
• CPC Class Codes: G06F 3/0617 in relation to availability
• CPC Class Codes: G06F 3/0619 in relation to data integrity, e.g. data losses, bit errors
• CPC Class Codes: G06F 3/0635 by changing the path, e.g. traffic rerouting, path reconfiguration
• CPC Class Codes: G06F 3/065 Replication mechanisms
• CPC Class Codes: G06F 3/0655 Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
• CPC Class Codes: G06F 3/067 Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
• CPC Class Codes: G06F 3/0689 Disk arrays, e.g. RAID, JBOD
• CPC Class Codes: H04L 67/1097 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 Class Codes: Y10S 707/99953 Recoverability
• CPC Class Codes: Y10S 707/99955 Archiving or backup

Abstract

Methods and systems are described for performing storage operations on electronic data in a network. In response to the initiation of a storage operation and according to a first set of selection logic, a media management component is selected to manage the storage operation. In response to the initiation of a storage operation and according to a second set of selection logic, a network storage device to associate with the storage operation. The selected media management component and the selected network storage device perform the storage operation on the electronic data.

Claims

1. A system that restores backup data in a computer network, the system comprising:

a plurality of storage devices that store backup data;

a plurality of storage controller computers, each of which communicates with at least two of the plurality of storage devices and at least two of a plurality of client devices, wherein each of the plurality of storage controller computers has an index cache associated therewith, and wherein each index cache associates at least one of the plurality of the storage controller computers with at least one of the plurality of storage devices, and wherein the each index cache stores location information of at least a portion of the backup data; and

wherein a first storage controller computer is selected to restore at least a portion of the backup data;

wherein the first storage controller computer locates the backup data on the plurality of storage devices by accessing a first index cache associated with the first storage controller computer; and

wherein the first storage controller computer restores the backup data saved on at least one of the storage devices to a least one of the plurality of client devices.

2. The system of claim 1 wherein the first storage controller computer is selected based on an available bandwidth of a network path that includes the first storage controller computer.

3. The system of claim 1 wherein first storage controller computer is selected based on load balancing the plurality of storage controller computers.

4. The system of claim 1 wherein the first storage controller computer is selected by a storage manager computer.

5. The system of claim 1 wherein the first storage controller is selected based at least in part on a comparison of availability of the plurality of storage controller computers.

6. The system of claim 1 wherein the second storage controller computer is a failover module to the first storage controller computer.

7. The system of claim 1 further comprising a storage manager module that queries one of the plurality of storage controller computers to identify the second storage controller computer when the backup data spans multiple storage devices.

8. The system of claim 1 further comprising one or more storage policies that comprise selection logic for selecting the second storage controller computer.

9. The system of claim 1 wherein the first storage controller computer updates the first index cache with at least location information of a portion of the backup data stored in one or more of the plurality of storage devices.

10. The system of claim 1 wherein the second storage controller computer updates a second index cache with at least location information of a portion of the backup data stored in one or more of the plurality of storage devices.

11. A method that restores data in a network, the method comprising:

storing instructions in a non-transitory computer storage which perform the following acts when executed by one or more computing devices;

selecting at least a first storage controller computer of a plurality of storage controller computers to restore backup data to at least one of a plurality of client devices, each of the plurality of storage controller computers has an index cache associated therewith, wherein each index cache associates a respective storage controller computer with at least one of a plurality of storage devices, wherein each index cache stores location information of at least a portion of the backup data, wherein at least two of the storage devices are shared by at least two of the storage computers, and wherein at least two of the client devices are shared by at least two of the storage computers; and

locating the backup data on the plurality of storage devices by accessing a first index cache associated with the first storage controller computer; and

restoring, with the first storage controller computer, the backup data saved on at least one of the storage devices to at least one of the plurality of client devices.

12. The method of claim 11 wherein selecting the first storage controller computer is based on an available bandwidth of a network path that includes the first storage controller computer.

13. The method of claim 11 wherein selecting the first storage controller computer further comprises load balancing the plurality of storage controller computers.

14. The method of claim 11 further comprising selecting the first storage controller computer is performed by a storage manager computer.

15. The method of claim 11 wherein said selecting the first storage controller computer is based at least in part on availability of the plurality of storage controller computers.

16. The method of claim 11 wherein the second storage controller computer is a failover module to the first storage controller computer.

17. The method of claim 11 further comprising querying with a storage manager module one of the storage controller computers to identify the second storage controller computer when the backup data spans multiple storage devices.

18. The method of claim 11 further comprising one or more storage policies that comprise selection logic for selecting the second storage controller computer.

19. The method of claim 11 further comprising updating, with the first storage controller computer, the first index cache with at least location information of a portion of the backup data stored in one or more of the plurality of storage devices.

20. The method of claim 11 further comprising updating, with the second storage controller computer, a second index cache with at least location information of a portion of the backup data stored in one or more of the plurality of storage devices.