IP Library › Granted Patent US 12,210,762
Granted Patent B2
US 12,210,762 · App. 18/297,730 · Granted Jan 28, 2025

Transitioning between source data repositories for a dataset

Inventors: David Grunwald (San Francisco, CA); Thomas Gill (Bury St Edmunds, GB); Connor Brooks (Mountain View, CA); Larry Touchette (Cupertino, CA); Saurabh Shukla (Santa Clara, CA)
Assignee: PURE STORAGE, INC.
G06F3/065G06F3/0619G06F3/067
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Quick Facts
Patent No.
US 12,210,762
App. No.
18/297,730
Granted
Jan 28, 2025
Kind
B2
Abstract

Transitioning between replication sources for data replication operations, including: delaying a transition from using a first data repository as a source for data replication to using a second data repository as the source for data replication after detecting that one or more storage operations directed to the first data repository have not been replicated to the second data repository; and promoting the second data repository as the source for data replication such that storage operations received after completing the transition are directed to the second data repository.

Claims (26)

1. A method implemented by a computing device comprising a processor and a memory device, the method comprising:

in response to an indication to promote a data repository to be a source for a dataset, identifying one or more data transfer operations directed to the dataset that are inflight to the data repository; and

delaying a promotion of the data repository until the data transfer operations are completed.

2. The method of claim 1 further comprising initiating, after the delay, a transition from using a different data repository as the source for data replication to using the repository as a source for data replication.

3. The method of claim 1 , wherein the source receives and applies updates to a dataset stored within a corresponding data repository at the source.

4. The method of claim 1 , wherein the source receives storage operations from a host device, and wherein the source applies updates to a dataset prior to a transition to using the repository as the source.

5. The method of claim 4 , wherein the source replicates all updates to the dataset to a replica volume stored on the data repository.

6. The method of claim 5 , wherein a replica link specifies a replication policy between a source for replica data and a target for replica data, and wherein the replica link further specifies one or more of: the dataset to replicate, a checkpoint policy, a metadata representation for the dataset, a metadata log, a metadata journal, or a continuous data replication policy.

7. The method of claim 6 , wherein promoting the data repository as the source includes modifying the replica link to indicate a direction of data replication from a different data repository as a source for data replication to the data repository as the source for data replication.

8. The method of claim 1 , wherein the one or more data transfer operations directed to the dataset that are inflight to the data repository include a migration operation for the dataset to be migrated from a first set of storage systems to a second set of storage systems.

9. An apparatus comprising a computer processor, a computer memory operatively coupled to the computer processor, the computer memory having disposed within it computer program instructions that, when executed by the computer processor, cause the apparatus to carry out the steps of:

in response to an indication to promote a data repository to be a source for a dataset, identifying one or more data transfer operations directed to the dataset that are inflight to the data repository; and

delaying a promotion of the data repository until the data transfer operations are completed.

10. The apparatus of claim 9 further comprising computer program instructions that, when executed by the computer processor, cause the apparatus to carry out the step of initiating, after the delay, a transition from using a different data repository as the source for data replication to using the repository as a source for data replication.

11. The apparatus of claim 9 , wherein the source receives and applies updates to a dataset stored within a corresponding data repository at the source.

12. The apparatus of claim 9 wherein the source receives storage operations from a host device, and wherein the source applies updates to a dataset prior to a transition to using the repository as the source.

13. The apparatus of claim 12 , wherein the source replicates all updates to the dataset to a replica volume stored on the data repository.

14. The apparatus of claim 13 , wherein a replica link specifies a replication policy between a source for replica data and a target for replica data, and wherein the replica link further specifies one or more of: the dataset to replicate, a checkpoint policy, a metadata representation for the dataset, a metadata log, a metadata journal, or a continuous data replication policy.

15. A computer program product disposed upon a non-transitory computer readable medium, the computer program product comprising computer program instructions that, when executed, cause a computer to carry out the steps of:

in response to an indication to promote a data repository to be a source for a dataset, identifying one or more data transfer operations directed to the dataset that are inflight to the data repository; and

delaying a promotion of the data repository until the data transfer operations are completed.

16. The computer program product of claim 15 further comprising computer program instructions that, when executed, cause a computer to carry out the step of initiating, after the delay, a transition from using a different data repository as the source for data replication to using the repository as a source for data replication.

17. The computer program product of claim 15 , wherein the source receives storage operations from a host device, and wherein the source applies updates to a dataset prior to a transition to using the repository as the source.

18. The computer program product of claim 15 , wherein the source receives storage operations from a host device, and wherein the source applies updates to a dataset prior to a transition to using the repository as the source.

19. The computer program product of claim 18 , wherein the source replicates all updates to the dataset to a replica volume stored on the data repository.

20. The computer program product of claim 19 , wherein a replica link specifies a replication policy between a source for replica data and a target for replica data, and wherein the replica link further specifies one or more of: the dataset to replicate, a checkpoint policy, a metadata representation for the dataset, a metadata log, a metadata journal, or a continuous data replication policy.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 10, 2023
From: GRUNWALD, DAVID; GILL, THOMAS; BROOKS, CONNOR; TOUCHETTE, LARRY; SHUKLA, SAURABH
To: PURE STORAGE, INC.
Reel/Frame 063271/0591 →
Continuity (3)
Continuation 17660710 · Apr 26, 2022
Continuation 16829849 · Mar 25, 2020
Related Publication 20230244403A1 · Aug 3, 2023
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