DATA BACKUP AND RECOVERY

• US 20140215265A1
• Filed: 01/29/2013
• Published: 07/31/2014
• Est. Priority Date: 01/29/2013
• Status: Active Grant

• Current Assignee: Hewlett Packard Enterprise Development LP (Hewlett-Packard Enterprise Company)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Mohanta, Taranisen, Nadagouda, Sameer Madhu, Govindaraja, Nayaka B.
• Granted Patent: US 9,015,527 B2
• Time in Patent Office: Days
• US Class Current: 714/15
• CPC Class Codes: G06F 11/1448 Management of the data involved in backup or backup restore
• CPC Class Codes: G06F 11/1458 Management of the backup or restore process
• CPC Class Codes: G06F 11/1469 Backup restoration techniques

Abstract

Techniques for data backup and recovery are described. In one implementation, at least one storage device storing original data which has failed is determined. Once the failed storage device is determined, backup related information corresponding to the failed at least one storage device is determined. Based on the backup related information at least one backup of the original data from a storage unit is identified. The backup as identified is eventually used for recovering data corresponding to the original data.

Claims

1. A data backup and recovery system comprising:

a processor; and

a backup and application monitoring agent coupled to the processor, the backup and application monitoring agent to,

determine backup related information associated with at least one storage device having stored thereupon original data, wherein the backup related information specifies at least a priority index associated with the at least one storage device; and

a backup tracking module coupled to the processor, the backup tracking module to,

identify, in the event of the original data stored on the at least one storage device becoming unavailable, at least one backup of the original data from a backup storage unit based on the backup related information, for recovering data corresponding to the original data.

2. The data backup and recovery system as claimed in claim 1, wherein the backup related information includes one of source of the original data, type of application utilizing the original data, and type and identity of storage unit storing the original data.

3. The data backup and recovery system as claimed in claim 1, wherein each of the at least one storage device is identifiable by a logical unit number (LUN).

4. The data backup and recovery system as claimed in claim 1, wherein the backup and application monitoring agent monitors whether the original data stored on the one or more storage devices has become unavailable.

5. The data backup and recovery system as claimed in claim 1, wherein the backup tracking module:

determines storage devices from one of the at least one storage devices, on which the original data stored has become unavailable;

determines the priority index associated with the storage devices on which the original data stored has become unavailable; and

ranks the storage devices based on the priority index.

6. The data backup and recovery system as claimed in claim 5, wherein the backup tracking module recovers data corresponding to the original data from the at least one backup in an order of the ranking of the storage device based on the priority index.

7. The data backup and recovery system as claimed in claim 1, wherein the backup tracking module further identifies the at least one backup of the original data from the backup storage unit based on at least one recovery policy associated with the storage device.

8. A method of data recovery and backup, the method comprising:

determining whether at least one storage device storing original data has failed;

obtaining backup related information associated with the at least one failed storage device; and

identifying at least one backup of the original data from a backup storage based on the backup related information based on at least a recovery policy, for recovering the data corresponding to the original data.

9. The method as claimed in claim 8, wherein the determining further comprises:

determining a priority associated with each of the at least one failed storage device; and

ranking each of the at least one failed storage device based on an increasing order of the priority index.

10. The method as claimed in claim 8, wherein the identifying further comprises:

determining an available number of backups corresponding to each of the at least one failed storage device;

determining the recovery policy associated with each of the at least one failed storage device;

obtaining a recovery policy requirement for each of the at least one failed storage device; and

identifying at least one backup of the original data from a storage unit based on a comparison of the recovery policy and the recovery policy requirement.

11. The method as claimed in claim 10, wherein the recovery policy is based on one of time of backup, time needed for recovering data based on a backup and nature of backup.

12. The method as claimed in claim 10, wherein the recovery policy requirements are based on one of Recovery Point Objective (RPO) requirements and Recovery Time Objective (RIO) requirements.

13. The method as claimed in claim 8, wherein the at least one backup of the original data is checked prior to recovery of data corresponding to the original data.

14. A non-transitory computer-readable medium having a set of computer readable instructions that, when executed, cause backup and recovery system to:

determine whether at least one storage device storing original data has failed;

obtain backup related information corresponding to the at least one failed storage device;

determine a priority index associated with each of the at least one failed storage device;

rank each of the at least one failed storage device based on the priority index;

identify at least one backup of the original data from a storage unit based on the backup related information, wherein the backup related information includes at least one of recovery policies and recovery policy requirements; and

recover the data based on the at least one identified backup, for each of the at least one failed storage device, in an order of the ranking of each of the at least one failed storage device

15. The non-transitory computer-readable medium as claimed in claim 14, wherein the at least one identified backup of the original data is selected based on the recovery policies specified by associating a relative priority to a plurality of user-specified parameters.