Combining memory aligned operations

Patent metadata

Field	Value
Publication number	US-12223183-B2
Application number	US-202318528045-A
Country	US
Kind code	B2
Filing date	Dec 4, 2023
Priority date	Oct 29, 2015
Publication date	Feb 11, 2025
Grant date	Feb 11, 2025

Abstract

Optimizing copy operations in a storage array, includes combining, in dependence upon a metadata optimization policy, a plurality of copy operations into a single copy operation and splitting the single copy operation into an optimized set of executable copy operations that copy data based on memory alignment.

First claim

What is claimed is:

1. A method comprising:
combining, into a single operation, a plurality of operations based on a metadata boundary at an underlying storage resource that defines a range of addresses of a single metadata block; and
from the single operation, creating an optimized set of one or more executable operations that write a particular amount of data that aligns with a memory layout at a target storage location.

2. The method of claim 1 wherein combining, in dependence upon a metadata optimization policy, the plurality of operations into a single operation further comprises:
identifying a metadata boundary for an underlying storage resource, the metadata boundary defining a range of addresses within underlying storage resources that are described by a single metadata block; and
grouping, within the single operation, all operations that are directed toward the metadata boundary.

3. The method of claim 1 wherein splitting the single operation into an optimized set of executable copy operations further comprises splitting the single operation into one or more copy operations that copy a particular amount of data that aligns with a physical or logical layout of memory on a storage device that data is copied from.

4. The method of claim 1 further comprising:
identifying a copy operation group associated with the single operation, wherein:
detecting a triggering event associated with a particular copy operation group; and
combining the plurality of operations into the single operation further comprises including only operations associated with the particular copy operation group in the single operation.

5. The method of claim 1 , wherein the plurality of operations are copy operations.

6. The method of claim 1 wherein splitting the single operation into an optimized set of executable copy operations further comprises splitting the single operation into one or more copy operations that write an amount of data optimized for transmission across a network.

7. The method of claim 1 wherein the single operation is a virtual copy operation.

8. The method of claim 1 further comprising detecting, as a triggering event, that a number of copy operations received has reached a predetermined number.

9. The method of claim 1 further comprising, detecting, as a triggering event, that a combined size of the plurality of operations has reached a predetermined size threshold.

10. A storage array controller, the storage array controller including a computer processor and a computer memory, the computer memory including computer program instructions that, when executed, cause the storage array controller to carry out the steps of:
combining, into a single operation, a plurality of operations based on a metadata boundary at an underlying storage resource that defines a range of addresses of a single metadata block; and
from the single operation, creating an optimized set of one or more executable operations that write a particular amount of data that aligns with a memory layout at a target storage location.

11. The storage array controller of claim 10 wherein combining, in dependence upon a metadata optimization policy, the plurality of operations into a single operation further comprises:
identifying a metadata boundary for an underlying storage resource, the metadata boundary defining a range of addresses within underlying storage resources that are described by a single metadata block; and
grouping, within the single operation, all of the operations that are directed toward the metadata boundary.

12. The storage array controller of claim 10 wherein splitting the single operation into an optimized set of executable copy operations further comprises splitting the single operation into one or more copy operations that copy a particular amount of data that aligns with a physical or logical layout of memory on a storage device that data is copied from.

13. The storage array controller of claim 10 further comprising computer program instructions that, when executed, cause the storage array controller to carry out the steps of:
identifying a copy operation group associated with the single operation;
detecting a triggering event associated with a particular copy operation group; and
combining the plurality of operations into the single operation further comprises including only operations associated with the particular copy operation group in the single operation.

14. The storage array controller of claim 10 further comprising computer program instructions that carry out the step of detecting, as a triggering event, that a predetermined period of time has expired since a most recently received copy operation was received.

15. The storage array controller of claim 10 further comprising computer program instructions that carry out the step of detecting, as a triggering event, that a predetermined period of time has expired since an oldest copy operation was received.

16. The storage array controller of claim 10 , wherein the plurality of operations are copy operations.

17. The storage array controller of claim 10 wherein splitting the single operation into an optimized set of executable copy operations further comprises splitting the single operation into one or more copy operations that write an amount of data optimized for transmission across a network.

18. The storage array controller of claim 10 wherein the single operation is a virtual copy operation.

19. A computer program product, the computer program product disposed on a computer readable storage medium, the computer program product comprising computer program instructions that, when executed, cause a storage device to carry out the steps of:
combining, in dependence upon a metadata optimization policy, a plurality of operations into a single operation; and
splitting the single operation into an optimized set of one or more executable copy operations that write a particular amount of data that aligns with a physical or logical layout of memory at a target storage location.

20. The computer program product of claim 19 wherein combining, in dependence upon a metadata optimization policy, the plurality of operations into a single operation further comprises:
identifying a metadata boundary for an underlying storage resource, the metadata boundary defining a range of addresses within underlying storage resources that are described by a single metadata block; and
grouping, within the single operation, all operations that are directed toward the metadata boundary.

Assignees

• Pure Storage Inc

Inventors

• Golden Christopher
• Smith Scott
• Paulsen Luke
• Grunwald David
• Cao Jianting

Classifications

• G06F3/0665

  at area level, e.g. provisioning of virtual or logical volumes · CPC title

• G06F3/0683

  Plurality of storage devices · CPC title

• G06F3/065

  Replication mechanisms · CPC title

• G06F3/061 Primary

  Improving I/O performance · CPC title

• G06F3/067

  Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS] · CPC title