Object layout discovery outside of backup windows

• US 10,282,254 B1
• Filed: 03/30/2015
• Issued: 05/07/2019
• Est. Priority Date: 03/30/2015
• Status: Active Grant

• Current Assignee: Emc IP Holding Company LLC (Dell Technologies Inc.)
• Original Assignee: Emc IP Holding Company LLC (Dell Technologies Inc.)
• Inventors: Chopra, Shelesh, Khan, Asif, Sharma, Satyendra Nath, Mallik, Shubhashish
• Primary Examiner(s): Hu, Jensen
• Application Number:
  US14/672,526
• Time in Patent Office: 1,499 Days
• Field of Search: 707640
• CPC Class Codes: G06F 11/1402 Saving, restoring, recovering or retrying
• CPC Class Codes: H04L 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46
• 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]

Abstract

Object layout discovery outside of backup windows is described. A system receives, from a backup/restore application, a request to discover an object layout for a data object by parsing the data object. The system determines whether the object layout is stored in layout storage. The system sends, to the backup/restore application, the object layout stored in the layout storage in response to a determination that the object layout is stored in the layout storage.

Claims

1. A system for object layout discovery outside of backup windows, the system comprising:

a processor-based application, which when executed on a computer, will cause the processor to;

receive, from a backup/restore application, a request to discover, by parsing a data object, an object layout for the data object, the object layout being associated with a worldwide name layout and a file system layout;

determine whether the object layout is stored in a layout storage;

send, to the backup/restore application, the object layout stored in the layout storage in response to a determination that the object layout is stored in the layout storage, the object layout stored in the layout storage having been discovered by a previous parsing of the data object; and

parse the data object to discover the requested object layout in response to a determination that the object layout is not stored in the layout storage.

2. The system of claim 1, wherein the object layout comprises at least one of a volume identifier, a disk identifier, a logical unit number identifier, and an array identifier.

3. The system of claim 1, wherein the object layout is stored in the layout storage based on a user-specified request to discover the object layout for the data object by parsing the data object.

4. The system of claim 1, wherein sending the object layout stored in the layout storage comprises discovering only a part of the object layout for the data object by parsing part of the data object in response to a determination that only the part of the object layout is not stored in the layout storage, and storing only the part of object layout in the layout storage.

5. The system of claim 1, wherein the processor-based application further causes the processor to store the parsed object layout in the layout storage and to send the parsed object layout to the backup/restore application in response to the determination that the object layout is not stored in the layout storage.

6. The system of claim 1, wherein the processor-based application further causes the processor to delete the object layout stored in the layout storage in response to detecting a specific change associated with the data object.

7. A computer-implemented method for object layout discovery outside of backup windows, the method comprising:

receiving, from a backup/restore application, a request to discover by parsing a data object, an object layout for the data object, the object layout being associated with a worldwide name layout and a file system layout;

determining whether the object layout is stored in a layout storage;

sending, to the backup/restore application, the object layout stored in the layout storage in response to a determination that the object layout is stored in the layout storage, the object layout stored in the layout storage having been discovered by a previous parsing of the data object; and

parsing the data object to discover the requested object layout in response to a determination that the object layout is not stored in the layout storage.

8. The method of claim 7, wherein the object layout comprises at least one of a volume identifier, a disk identifier, a logical unit number identifier, and an array identifier.

9. The method of claim 7, wherein the object layout is stored in the layout storage based on a user-specified request to discover the object layout for the data object by parsing the data object.

10. The method of claim 7, wherein sending the object layout stored in the layout storage comprises discovering only a part of the object layout for the data object by parsing part of the data object in response to a determination that only the part of the object layout is not stored in the layout storage, and storing only the part of object layout in the layout storage.

11. The method of claim 7, wherein the method further comprises storing the parsed object layout in the layout storage and sending the parsed object layout to the backup/restore application in response to the determination that the object layout is not stored in the layout storage.

12. The method of claim 7, wherein the method further comprises deleting the object layout stored in the layout storage in response to detecting a specific change associated with the data object.

13. A computer program product, comprising a non-transitory computer-readable medium having a computer-readable program code embodied therein to be executed by one or more processors, the program code including instructions to:

receive, from a backup/restore application, a request to discover by parsing the data object, an object layout for the data object, the object layout being associated with a worldwide name layout and a file system layout;

determine whether the object layout is stored in a layout storage;

send, to the backup/restore application, the object layout stored in the layout storage in response to a determination that the object layout is stored in the layout storage, the object layout stored in the layout storage having been discovered by a previous parsing of the data object; and

parse the data object to discover the requested object layout in response to a determination that the object layout is not stored in the layout storage.

14. The computer program product of claim 13, wherein the object layout comprises at least one of a volume identifier, a disk identifier, a logical unit number identifier, and an array identifier.

15. The computer program product of claim 13, wherein the object layout is stored in the layout storage based on a user-specified request to discover the object layout for the data object by parsing the data object.

16. The computer program product of claim 13, wherein sending the object layout stored in the layout storage comprises discovering only a part of the object layout for the data object by parsing part of the data object in response to a determination that only the part of the object layout is not stored in the layout storage, and storing only the part of object layout in the layout storage.

17. The computer program product of claim 13, wherein the program code further includes instructions to store the parsed object layout in the layout storage and to send the parsed object layout to the backup/restore application in response to the determination that the object layout is not stored in the layout storage, and to delete the object layout stored in the layout storage in response to detecting a specific change associated with the data object.