COLLISION AVOIDANCE USING DYNAMIC TARGET VOLUME ALLOCATION IN A SINGLE REPOSITORY

• US 20150286434A1
• Filed: 04/02/2014
• Published: 10/08/2015
• Est. Priority Date: 04/02/2014
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: DAIN, Joseph W., KISHI, Gregory T., ZAREMBA, Christopher
• Granted Patent: US 9,747,046 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 11/14 Error detection or correction of the data by redundancy in operation G06F11/16 takes precedence
• CPC Class Codes: G06F 11/1446 Point-in-time backing up or restoration of persistent data
• CPC Class Codes: G06F 11/1458 Management of the backup or restore process
• CPC Class Codes: G06F 2201/82 Solving problems relating to consistency ensuring consistency in mirrored systems G06F11/2064
• CPC Class Codes: G06F 2201/84 Using snapshots, i.e. a logical point-in-time copy of the data
• CPC Class Codes: G06F 3/0619 in relation to data integrity, e.g. data losses, bit errors
• CPC Class Codes: G06F 3/065 Replication mechanisms
• CPC Class Codes: G06F 3/0665 at area level, e.g. provisioning of virtual or logical volumes
• CPC Class Codes: G06F 3/0673 Single storage device
• CPC Class Codes: G06F 3/0688 Non-volatile semiconductor memory arrays
• CPC Class Codes: G06F 3/0689 Disk arrays, e.g. RAID, JBOD

Abstract

Dynamically allocates a new Flashcopy backup target volume within the single repository for executing a new Flashcopy backup to avoid a collision with one of a mount operation, a restore operation, and a clone operation when dynamically allocating the new Flashcopy target volume for the new Flashcopy backup.

Claims

1. A method for collision avoidance using dynamic target volume allocation in a single repository computing system by a processor device in a computing environment, the method comprising:

dynamically allocating a new Flashcopy backup target volume within the single repository for executing a new Flashcopy backup to avoid a collision with at least one of a mount operation, a restore operation, and a clone operation when dynamically allocating the new Flashcopy target volume for the new Flashcopy backup.

2. The method of claim 1, further including dynamically allocating the new Flashcopy backup target volume and deleting an older Flashcopy backup target volume.

3. The method of claim 2, further including creating a Flashcopy Map (fcmap).

4. The method of claim 3, further including creating a copy of an older Flashcopy backup by creating the new Flashcopy backup target volume.

5. The method of claim 4, further including performing at least one of the mount operation, the restore operation, and the clone operation to while dynamically allocating the new Flashcopy backup target volume.

6. The method of claim 5, further including creating or initializing at least one of a consistency group and a flashcopy map of FlashCopy backup target volumes.

7. The method of claim 5, further including dynamically cleaning at least one of the new target volume and the existing FlashCopy target volumes.

8. A system for collision avoidance using dynamic target volume allocation in a single repository in a computing environment, the system comprising:

at least one processor device operable in the computing storage environment, wherein processor device;

dynamically allocates a new Flashcopy backup target volume within the single repository for executing a new Flashcopy backup to avoid a collision with at least one of a mount operation, a restore operation, and a clone operation when dynamically allocating the new Flashcopy target volume for the new Flashcopy backup.

9. The system of claim 8, wherein the at least one processor device dynamically allocates the new Flashcopy backup target volume and deleting an older Flashcopy backup target volume.

10. The system of claim 9, wherein the at least one processor device creates a Flashcopy Map (fcmap).

11. The system of claim 10, wherein the at least one processor device creates a copy of an older Flashcopy backup by creating the new Flashcopy backup target volume.

12. The system of claim 11, wherein the at least one processor device performs at least one of the mount operation, the restore operation, and the clone operation to while dynamically allocating the new Flashcopy backup target volume.

13. The system of claim 12, wherein the at least one processor device creates or initializes at least one of a consistency group and a flashcopy map of FlashCopy backup target volumes.

14. The system of claim 12, wherein the at least one processor device dynamically cleans at least one of the new target volume and the existing FlashCopy target volumes.

15. A computer program product for collision avoidance using dynamic target volume allocation in a single repository in a computing environment by a processor device, the computer program product comprising a non-transitory computer-readable storage medium having computer-readable program code portions stored therein, the computer-readable program code portions comprising:

a first executable portion that dynamically allocates a new Flashcopy backup target volume within the single repository for executing a new Flashcopy backup to avoid a collision with at least one of a mount operation, a restore operation, and a clone operation when dynamically allocating the new Flashcopy target volume for the new Flashcopy backup.

16. The computer program product of claim 15, further including a second executable portion that dynamically allocates the new Flashcopy backup target volume and deleting an older Flashcopy backup target volume.

17. The computer program product of claim 16, further including a third executable portion that creates a Flashcopy Map (fcmap).

18. The computer program product of claim 17, further including a fourth executable portion that performs at least one of:

creating a copy of an older Flashcopy backup by creating the new Flashcopy backup target volume, and

performing at least one of the mount operation, the restore operation, and the clone operation to while dynamically allocating the new Flashcopy backup target volume.

19. The computer program product of claim 18, further including a fifth executable portion that creates or initializes at least one of a consistency group and a flashcopy map of FlashCopy backup target volumes.

20. The computer program product of claim 18, further including a fifth executable portion that dynamically cleans at least one of the new target volume and the existing FlashCopy target volumes.