Single snapshot for multiple applications

• US 9,639,426 B2
• Filed: 01/24/2014
• Issued: 05/02/2017
• Est. Priority Date: 01/24/2014
• Status: Active Grant

• Current Assignee: CommVault Systems Incorporated
• Original Assignee: CommVault Systems Incorporated
• Inventors: Pawar, Rahul S., Ahn, Jun H., Mutha, Manas Bhikchand, Dornemann, Henry Wallace, Kumar, Anup
• Primary Examiner(s): Boccio, Vincent F
• Application Number:
  US14/163,465
• Publication Number:
  US 20150212893A1
• Time in Patent Office: 1,194 Days
• Field of Search: 707649
• CPC Class Codes: G06F 11/1448 Management of the data involved in backup or backup restore
• CPC Class Codes: G06F 11/1451 by selection of backup contents
• CPC Class Codes: G06F 11/1456 Hardware arrangements for backup
• CPC Class Codes: G06F 11/1458 Management of the backup or restore process
• CPC Class Codes: G06F 11/1469 Backup restoration techniques
• CPC Class Codes: G06F 16/128 Details of file system snapshots on the file-level, e.g. snapshot creation, administration, deletion use of snapshots for error detection or correction G06F11/14, G06F11/16
• CPC Class Codes: G06F 2009/45583 Memory management, e.g. access or allocation
• CPC Class Codes: G06F 2201/82 Solving problems relating to consistency ensuring consistency in mirrored systems G06F11/2064
• CPC Class Codes: G06F 2201/84 Using snapshots, i.e. a logical point-in-time copy of the data
• CPC Class Codes: G06F 8/60 Software deployment
• CPC Class Codes: G06F 9/445 Program loading or initiating bootstrapping G06F9/4401; security arrangements for program loading or initiating G06F21/57
• CPC Class Codes: G06F 9/45504 Abstract machines for programme code execution, e.g. Java virtual machine [JVM], interpreters, emulators
• CPC Class Codes: G06F 9/45558 Hypervisor-specific management and integration aspects

Abstract

An information management system according to certain aspects may be configured to generate a snapshot of data relating to a plurality of applications. The system may include a plurality of data agents, wherein each data agent is associated with at least one of a plurality of applications, and data generated by the plurality of applications is stored in a logical volume in primary storage. The system may also include a snapshot manager configured to detect the plurality of applications; check with the plurality of data agents whether the associated applications are in consistent states; obtain a snapshot of the logical volume in response to receiving notifications from the plurality of data agents that the associated applications are in consistent states; and generate mapping information between a particular one of the plurality of applications and a portion of the snapshot relating to the particular one of the plurality of applications.

Claims

1. An information management system configured to generate a snapshot of data relating to a plurality of applications, the system comprising:

a plurality of data agents installed at least in part on a client computing device, each data agent associated with at least one of a plurality of applications installed on the client computing device, data generated by the plurality of applications stored in a logical volume in a primary storage subsystem;

one or more computing devices comprising computer hardware; and

a snapshot manager installed on the one or more computing devices and configured to;

detect the plurality of applications installed on the client computing device;

receive a first snapshot request from a first application in the plurality of applications at a first time;

receive a second snapshot request from a second application in the plurality of applications;

detect that the second snapshot request is received within a threshold time period of the first time;

check with the plurality of data agents whether the associated applications are in consistent states;

in response to receiving notifications from the plurality of data agents that the associated applications are in consistent states, obtain a snapshot of the logical volume to satisfy the first snapshot request and the second snapshot request;

generate mapping information between a particular one of the plurality of applications and a portion of the snapshot relating to the particular one of the plurality of applications; and

store the snapshot in a secondary storage subsystem.

2. The information management system of claim 1, wherein the snapshot manager is further configured to, as part of the detection of the plurality of applications installed on the client computing device, determine the plurality of data agents installed on the client computing device.

3. The information management system of claim 1, wherein the snapshot of the logical volume comprises the data generated by the plurality of applications in the logical volume.

4. The information management system of claim 1, wherein the logical volume comprises data associated with a file system of the client computing device.

5. The information management system of claim 1, wherein the logical volume comprises data of a virtual machine.

6. The information management system of claim 1, wherein the snapshot is a hardware snapshot.

7. The information management system of claim 1, wherein a data agent of the plurality of data agents is associated with a database application, an email application, or a file system.

8. The information management system of claim 1, wherein the snapshot manager is further configured to obtain the snapshot of the logical volume in response to receiving notifications from two or more of the plurality of data agents, but not all of the plurality of data agents.

9. The information management system of claim 1, wherein each of the plurality of applications has a frequency for obtaining a snapshot of data associated with the application, and the snapshot manager is further configured to obtain the snapshot of the logical volume for two or more applications of the plurality of applications having the same frequency for obtaining a snapshot at the same time.

10. The information management system of claim 1, wherein each of the data agents is configured to obtain metadata relating to data structure or one or more directories of the associated application.

11. The information management system of claim 10, wherein the snapshot manager is further configured to generate the mapping information based on the metadata relating to the data structure or the one or more directories of the associated application.

12. A method of generating a snapshot of data relating to a plurality of applications, the method comprising:

detecting, using one or more computing devices, a plurality of applications installed on a client computing device, a plurality of data agents installed at least in part on the client computing device, each data agent associated with at least one of the plurality of applications installed on the client computing device, data generated by the plurality of applications stored in a logical volume in a primary storage subsystem;

receiving a first snapshot request from a first application in the plurality of applications at a first time;

receiving a second snapshot request from a second application in the plurality of applications;

detecting that the second snapshot request is received within a threshold time period of the first time;

sending requests to the plurality of data agents to check whether the associated applications are in consistent states;

in response to receiving notifications from the plurality of data agents that the associated applications are in consistent states, obtaining a snapshot of the logical volume to satisfy the first snapshot request and the second snapshot request;

generating, using the computer hardware, mapping information between a particular one of the plurality of applications and a portion of the snapshot relating to the particular one of the plurality of applications; and

storing the snapshot in a secondary storage subsystem.

13. The method of claim 12, wherein detecting the plurality of applications installed on the client computing device comprises determining the plurality of data agents installed on the client computing device.

14. The method of claim 12, wherein the snapshot of the logical volume comprises the data generated by the plurality of applications in the logical volume.

15. The method of claim 12, wherein the logical volume comprises data associated with a file system of the client computing device.

16. The method of claim 12, wherein a data agent of the plurality of data agents is associated with a database application, an email application, or a file system.

17. The method of claim 12, wherein the snapshot of the logical volume is obtained in response to receiving notifications from two or more of the plurality of data agents, but not all of the plurality of data agents.

18. The method of claim 12, wherein each of the plurality of applications has a frequency for obtaining a snapshot of data associated with the application, and the snapshot of the logical volume for two or more applications of the plurality of applications having the same frequency for obtaining a snapshot is obtained at the same time.

19. The method of claim 12, wherein each of the data agents obtains metadata relating to data structure or one or more directories of the associated application.

20. The method of claim 19, wherein the mapping information is generated based at least in part on the metadata relating to the data structure or the one or more directories of the associated application.