Method of and system for merging, storing and retrieving incremental backup data
View Patent ↗A method of managing backup data. The method includes accessing, via a backup manager, index data of an initial snapshot and accessing, via the backup manager, index data of a subsequent snapshot. The method further includes determining, via the backup manager, whether the index data of the subsequent snapshot is different from the index data of the initial snapshot. Responsive to a determination that the index data of the subsequent snapshot is different from the index data of the initial snapshot, creating an updated index data and creating an updated snapshot with the updated index data.
1. A method of managing backup data, the method comprising:
accessing, via a backup manager, index data of an initial snapshot;
accessing, via the backup manager, index data of a subsequent snapshot;
determining, via the backup manager, whether the index data of the subsequent snapshot is different from the index data of the initial snapshot;
responsive to a determination that the index data of the subsequent snapshot is different from the index data of the initial snapshot, creating an updated index data;
creating an updated snapshot with the updated index data, wherein the index data and the updated index data comprise object identifiers and location identifiers;
assigning objectstore identifiers to the object identifiers, wherein the object identifiers corresponding to data sets are further identified by the objectstore identifiers; and
wherein the updated index data correspond to an updated data set within the updated snapshot.
2. The method of claim 1 , wherein the initial snapshot includes a first replica of a data set taken at a first predetermined time.
3. The method of claim 2 , wherein the subsequent snapshot includes a second replica of the data set taken at a second predetermined time.
4. The method of claim 3 , wherein the second predetermined time occurs after the first predetermined time.
5. The method of claim 3 , wherein the second replica illustrates the data set that has changed since the first replica.
6. The method of claim 1 , wherein the updated snapshot is a resultant of the initial snapshot and the subsequent snapshot.
7. The method of claim 1 , wherein the object identifiers correspond to a data set within at least one of the initial snapshot, the subsequent snapshot, and the updated snapshot.
8. The method of claim 1 , wherein the location identifiers point to a data set within at least one of the initial snapshot, the subsequent snapshot, and the updated snapshot.
9. The method of claim 1 , wherein the index data comprises information for accessing data sets in at least one of the initial snapshot, the subsequent snapshot, and the updated snapshot.
10. An information handling system comprising:
a backup manager comprising a processor interoperably coupled to a client computer and adapted to provide instructions to take an initial snapshot and a subsequent snapshot of data sets at predetermined intervals and create an initial index data and a subsequent index data; and
wherein the processor of the backup manager accesses the initial index data and the subsequent index data and creates an updated snapshot and an updated index data responsive to a determination that the subsequent index data is different from the initial index data;
wherein the initial index data and the subsequent index data comprise object identifiers and location identifiers;
wherein the object identifiers are further assigned objectstore identifiers, wherein the object identifiers corresponding to data sets are further identified by the objectstore identifiers; and
wherein the updated index data correspond to an updated data set within the updated snapshot.
11. The system of claim 10 , wherein the backup manager comprises an indexing service module and an index database.
12. The system of claim 10 , wherein the backup manager is implemented as at least one of a computer code, a hardware device and a software/hardware combination.
13. The system of claim 10 , wherein:
the client comprises a data agent; and
the data agent retrieves data from an information store.
14. The system of claim 13 , wherein the data agent is implemented as at least one of a computer code, a hardware device and a software/hardware combination.
15. The system of claim 10 further comprising an object-oriented database.
16. The system of claim 10 , wherein the updated snapshot is a resultant of the initial snapshot and the subsequent snapshot.
17. An article of manufacture for managing backup data, the article of manufacture comprising:
at least one computer readable medium;
processor instructions contained on the at least one computer readable medium, the processor instructions configured to be readable from the at least one computer readable medium by at least one processor and thereby cause the at least one processor to operate as to perform the following steps:
accessing, via a backup manager, index data of an initial snapshot;
accessing, via the backup manager, index data of a subsequent snapshot;
determining, via the backup manager, whether the index data of the subsequent snapshot is different from the index data of the initial snapshot;
responsive to a determination that the index data of the subsequent snapshot is different from the index data of the initial snapshot, creating an updated index data;
creating an updated snapshot with the updated index data, wherein the index data and the updated index data comprise object identifiers and location identifiers;
assigning objectstore identifiers to the object identifiers, wherein the object identifiers corresponding to data sets are further identified by the objectstore identifiers; and
wherein the updated index data correspond to an updated data set within the updated snapshot.