System and method for automatic scheduling and policy provisioning for information lifecycle management

• US 8,423,731 B1
• Filed: 10/31/2006
• Issued: 04/16/2013
• Est. Priority Date: 10/31/2006
• Status: Active Grant

• Current Assignee: NetApp, Inc.
• Original Assignee: NetApp, Inc.
• Inventors: Nadathur, Gokul, Vaid, Aseem
• Primary Examiner(s): Thai, Tuan
• Assistant Examiner(s): LI, ZHUO H
• Application Number:
  US11/590,356
• Time in Patent Office: 2,359 Days
• Field of Search: 711/100, 711111-112, 711/114, 711/115, 711161-162, 707/640, 707/654, 707/655
• US Class Current: 711/162
• CPC Class Codes: G06F 11/1461 Backup scheduling policy
• CPC Class Codes: G06F 11/1466 to make the backup process non-disruptive
• CPC Class Codes: G06F 2201/84 Using snapshots, i.e. a logical point-in-time copy of the data

Abstract

A system and method for managing automatic data protection features, e.g., backup scheduling and data storage capabilities, e.g., policy provisioning of a storage system to enable information lifecycle management of data served by the system. A novel management module executes within a storage operating system of the storage system to manage the automatic scheduling of backup operations for data based on a minimal set of user configurations. The management module cooperates with a mirroring application to manage the generation of persistent consistency point image (PCPIs) used as backups (replicas) of the data. The management module distributes the data containers scheduled for PCPI generation among time slots within a defined backup time window. At the appropriate time slot, each PCPI the data container is illustratively backed up from the primary storage space to the secondary storage space.

Claims

1. A method for automating management of a plurality of data containers stored on one or more storage devices operatively connected to a computer, comprising:

computing a priority for a data container of the plurality of data containers using an importance value associated with the data container;

performing policy based management of the data container based on the computed priority, wherein performing policy based management comprises deleting the data container based on the computed priority;

assigning, each data container of the plurality of data containers to a respective time slot within a backup window, wherein the backup window comprises a start time and a length of time, and wherein a length of a time slot depends on a size of changes in the assigned data container, so that unassigned time within the backup window is evenly distributed after each assigned time slot, thereby leaving approximately a same amount of unassigned time after each assigned time slot; and

initiating, during each assigned time slot, one or more backup operations of one or more data containers of the plurality of data containers.

2. The method of claim 1 further comprising:

initiating a first and second backup operation of the one or more backup operations, and in response to initiating the second backup operation while the first backup operation is ongoing, expanding the backup window.

3. The method of claim 2 further comprising:

assigning the second backup operation to an additional time slot within the expanded backup window.

4. The method of claim 1 wherein computing the priority further comprises using a relevance rating associated with the data container.

5. The method of claim 1 wherein at least one of the plurality of data containers comprises a volume.

6. The method of claim 1 further comprising:

migrating the data container to archival storage based on the priority associated with the data container.

7. The method of claim 1 wherein performing policy based management further comprises:

migrating the data container from a primary storage space to a secondary storage space based on the priority.

8. The method of claim 1 wherein performing policy based management further comprises:

deleting a persistent consistency point image of the data container.

9. The method of claim 2 further comprising:

notifying an administrator when expanding the backup window would exceed a predefined maximum.

10. The method of claim 2 wherein the length of the backup window is expanded by 50 percent or more.

11. The method of claim 4 wherein the relevance rating is specific to application level consistency in the data container.

12. The method of claim 1 wherein performing policy based management further comprises:

deleting the data container from a primary storage space when an amount of free space in the primary storage space falls below a threshold.

13. The method of claim 7 wherein performing policy based management further comprises:

deleting the data container from the secondary storage space when an amount of free space in the secondary storage space falls below a threshold.

14. The method of claim 1, wherein the start time and the length of time are input via a user interface.

24. The method of claim 1 further comprising:

scheduling generation of a persistent consistency point image of the data container.

25. The method of claim 1 wherein assigning each data container to the respective time slot within the backup window further comprises:

expanding the backup window to increase the length of time; and

apportioning the increased length of time to an additional time slot within the backup window.

26. The method of claim 1 wherein the importance value is a qualitative value.

15. A system configured to automate management of a plurality of data containers, comprising:

a computer comprising a processor, the computer configured to compute a priority for a data container of the plurality of data containers using a value associated with the data container,

the computer further configured to perform policy based management of the data container based on the computed priority, wherein the policy based management comprises deletion of a persistent consistency point image of the data container,

the computer further configured to assign, without user intervention, each data container of the plurality of data containers to a respective time slot within a backup window, and wherein the backup window comprises a start time and a length of time, wherein a length of a time slot depends on a size of the assigned is data container, so that unassigned time within the backup window is evenly distributed after each assigned time slot, thereby leaving approximately a same amount of unassigned time after each assigned time slot; and

the computer further configured to initiate, during each assigned time slot, one or more one or more backup operations of one or more data containers of the plurality of data containers.

16. The system of claim 15 wherein the computer is further configured to perform mirroring operations of the data container between a primary storage space operatively connected to the computer and a secondary storage space operatively connected to the computer.

17. The system of claim 16 wherein the primary storage space and the secondary storage space are serviced by the computer on different storage devices.

18. The system of claim 15 wherein the computer comprises a storage system.

19. The system of claim 15 wherein the policy based management further comprises:

deletion of one or more persistent consistency point images of the data container.

20. The system of claim 15 wherein the policy based management further comprises:

migration of the data container from the computer to a second computer based on the computed priority.

21. The system of claim 15 wherein the policy based management further comprises:

migration of one or more persistent consistency point images of the data container from the computer to a second computer based on the computed priority.

22. The system of claim 15 wherein the value comprises a business importance value and wherein the computed priority is computed from the business importance value and a relevance rating associated with the data container.

23. A non-transitory computer-readable medium containing executable program instructions for execution by a processor for automating management of a plurality of data containers, comprising:

program instructions that create a data container of the plurality of data containers;

program instructions that compute a priority for the data container using an importance value associated with the data container;

program instructions that perform policy based management of the data container based on the computed priority, wherein the program instructions that perform policy based management comprise program instructions that delete the data container based on the computed priority;

program instructions that assign, without user intervention, each data container of the plurality of data containers to a respective time slot within a backup window, wherein the backup window comprises a start time and a length of time, and wherein a length of a time slot depends on a size of changes in the assigned data container, so that unassigned time within the backup window is evenly distributed after each assigned time slot, thereby leaving approximately a same amount of unassigned time after each assigned time slot; and

program instructions that initiate, during each assigned time slot, one or more backup operations of one or more data containers of the plurality of data containers.