Method and system for searching stored data

• US 8,234,249 B2
• Filed: 03/31/2011
• Issued: 07/31/2012
• Est. Priority Date: 12/22/2006
• Status: Active Grant

• Current Assignee: CommVault Systems Incorporated
• Original Assignee: CommVault Systems Incorporated
• Inventors: Prahlad, Anand, Kavuri, Srinivas, Kottomtharayil, Rajiv, Amarendran, Arun Prasad, Brockway, Brian, Muller, Marcus S., May, Andreas
• Primary Examiner(s): LEROUX, ETIENNE PIERRE
• Application Number:
  US13/076,634
• Publication Number:
  US 20110179039A1
• Time in Patent Office: 488 Days
• Field of Search: 707/640, 709/223
• US Class Current: 707/640
• CPC Class Codes: G06F 16/122 using management policies backup systems G06F11/1446; file migration policies for HSM systems G06F16/185
• CPC Class Codes: G06F 16/2453 Query optimisation
• CPC Class Codes: G06F 16/93 Document management systems
• CPC Class Codes: G06F 16/951 Indexing; Web crawling techniques

Abstract

A complete document management system is disclosed. Accordingly, systems and methods for managing data associated with a data storage component coupled to multiple computers over a network are disclosed. Systems and methods for managing data associated with a data storage component coupled to multiple computers over a network are further disclosed. Additionally, systems and methods for accessing documents available through a network, wherein the documents are stored on one or more data storage devices coupled to the network, are disclosed.

Claims

1. A non-transitory computer-readable medium storing instruction that, when executed by a computer, perform a method for managing data associated with a data storage device, wherein the data storage device is coupled to multiple computers over a network, the method comprising:

storing, in an index, information that describes application data stored in the data storage device,

wherein the information includes keywords that are present in the application data and

wherein the information includes the location of the application data;

determining that the application data from the data storage device has been moved to an offsite location,

wherein the application data is not available over the network when at the offsite location;

updating the information in the index to reflect movement of the application data from the data storage device to the offsite location,

wherein the updated information indicates the offsite location of the migrated application data;

receiving a query from a user, wherein the query includes at least one search parameter;

searching the index for application data that matches the at least one received search parameter,

wherein the searching accesses the information in order to identify matching application data at the offsite location; and

,

returning to the user data regarding the identified matching application data at the offsite location.

2. The non-transitory computer-readable medium of claim 1, further comprising storing application data received from multiple computers over the network in the data storage device, the application data comprising data in multiple formats, wherein each format corresponds to a different software format.

3. The non-transitory computer-readable medium of claim 1, further comprising storing the at least one received search parameter as a new data storage policy, wherein the new data storage policy comprises a set of preferences or storage criteria associated with performing future storage operations.

4. The non-transitory computer-readable medium of claim 3, wherein the new data storage policy is associated with a scheduling component and defines when the scheduling component should perform a storage operation and how often to perform the storage operation.

5. The non-transitory computer-readable medium of claim 3, wherein the new data storage policy is stored in a storage manager, the storage manager further comprising a jobs agent configured to carry out data storage operations, a management agent configured to monitor the status of the data storage operations, and an interface module configured to display the status of the data storage operations to a user.

6. The method of claim 1, further comprising receiving the query from the user across the network via a web browser, wherein the searching identifies data stored across multiple data storage tiers in the network matching the at least one search parameter.

7. The non-transitory computer-readable medium of claim 1, further comprising identifying one or more documents that match the at least one search parameter and retrieving one or more identified documents for access by a user without overwriting a current copy of the one or more identified documents on the data storage component.

8. The method of claim 1, further comprising:

creating a data storage policy that specifies one or more data storage operations to be performed on the stored application data,

wherein the data storage policy is created in part based on results obtained from the searching of the index,

wherein the searching accesses the information and identifies matching application data from multiple computers and in multiple formats, and

wherein the data storage policy is a data structure that includes a set of criteria used to perform storage operations; and

,

performing the one or more data storage operations on the stored application data based on the data storage policy and based on the results obtained from the searching of the index.

9. A non-transitory computer-readable medium storing instruction that, when executed by a computer, perform a method for accessing files, the method comprising:

receiving from a user a request to access one or more files, wherein the request is associated with a user'"'"'s security level;

searching a database to locate metadata describing one or more files satisfying the request based on a security level stored with the metadata that describes files,

providing a signal to access, via a network and in response to the request, the one or more files at the identified data storage devices;

determining that at least one of the files has been moved to an offsite location,

wherein the at least one migrated file is not available over a network when at the offsite location;

updating the database to reflect the movement of the at least one file to the offsite location;

receiving a query having one or more search parameters relating to files stored on at least one of the data storage devices and relating to the at least one file at the offsite location;

searching the database to locate metadata describing the at least one file at the offsite location that satisfies the search parameters; and

,

retrieving the at least one file that satisfies the search parameters from the offsite location.

10. The non-transitory computer-readable medium of claim 9, further comprising determining access control information of one or more files determined to satisfy the received search parameters and comparing the access control information to a security level of a user associated with the query.

11. The non-transitory computer-readable medium of claim 9, wherein the database is a metabase, and wherein the metabase is generated at least in part by examining files that were generated from secondary copy operations, and wherein the metadata includes locations of the one or more files.

12. The non-transitory computer-readable medium of claim 9, further comprising

resolving references in the located metadata to identify data storage devices containing the files,

wherein the resolving at least assists in determining which data storage devices to access the files from, and

wherein the access is at least in part based on a data access criteria that specifies the results that the user has access to view.

13. The non-transitory computer-readable medium of claim 12, further comprising displaying a preview of each file determined to satisfy the received search parameters and for which the security level is sufficient for viewing the files based on the access control information.

14. A non-transitory computer-readable medium storing instruction that, when executed by a computer, perform a method for managing data associated with one or more data storage devices, wherein the data storage devices are coupled to multiple computers over a network, the method comprising:

receiving a user'"'"'s first data object from a first computer over the network;

indexing content of the first data object;

performing a first storage operation on the first data object, wherein

performing the first storage operation results in—

creating a second data object, wherein the second data object is a secondary copy of the first data object, and

indexing content of the second data object;

performing a second storage operation on the second data object, wherein the performance of the second storage operation results in—

creating a third data object, wherein the third data object is a modified secondary copy of the first data object, and

indexing content of the third data object;

sending the third data object to an offline storage location,

wherein the offline storage location is not accessible to the computers over the network;

maintaining a content index of data associated with the data storage devices, wherein the data associated with the data storage devices includes—

secondary copies of data objects, and

offline copies of data objects, and

wherein the content index reflects the indexed content of at least the first, second, and third data objects;

in response to receiving a user'"'"'s query, searching the content index to identify the third data object that is stored in the offline storage location and that matches search criteria provided by the user; and

,

providing information to the user regarding the identified third data object that is stored in the offline storage location.

15. The non-transitory computer-readable medium of claim 14, further comprising receiving user input through a graphical user interface identifying a type of data to be used for searching.

16. The non-transitory computer-readable medium of claim 14, wherein the index comprises multiple content indices, and wherein each of the content indices is associated with a logical volume that represents one or more physical volumes.

17. The non-transitory computer-readable medium of claim 14, further comprising storing multiple security policies relating to multiple users, wherein the policies further define data access rights for those users that specify the data that can be accessed by each user.

18. The non-transitory computer-readable medium of claim 14, further comprising receiving search criteria from a user and an indication that the search criteria produce the type of results that a user wants to find on a regular basis, and storing the search criteria as a data management policy that the user can apply to future storage operations.

19. The non-transitory computer-readable medium of claim 14, wherein the secondary copies comprise copies of secondary copies on which additional data storage operations have been performed.

20. The non-transitory computer-readable medium of claim 14, wherein two or more of the secondary copies differ in type of document and time of creation.

21. The non-transitory computer-readable medium of claim 14, wherein the third data object is a modified secondary copy of the first data object that has been modified by compression or encryption.