Writing data to storage device based on information about memory in the storage device

• US 10,564,882 B2
• Filed: 01/30/2019
• Issued: 02/18/2020
• Est. Priority Date: 06/23/2015
• Status: Active Grant

• Current Assignee: Pure Storage, Inc.
• Original Assignee: Pure Storage, Inc.
• Inventors: Colgrove, John, Kirkpatrick, Peter E.
• Primary Examiner(s): Bertram, Ryan
• Assistant Examiner(s): Kwong, Edmund H
• Application Number:
  US16/261,895
• Publication Number:
  US 20190163390A1
• Time in Patent Office: 384 Days
• CPC Class Codes: G06F 3/0604 Improving or facilitating administration, e.g. storage management
• CPC Class Codes: G06F 3/0608 Saving storage space on storage systems
• CPC Class Codes: G06F 3/0632 by initialisation or re-initialisation of storage systems
• CPC Class Codes: G06F 3/0644 Management of space entities, e.g. partitions, extents, pools
• CPC Class Codes: G06F 3/0653 Monitoring storage devices or systems
• CPC Class Codes: G06F 3/0673 Single storage device
• CPC Class Codes: G06F 3/0689 Disk arrays, e.g. RAID, JBOD

Abstract

A method including receiving, by a storage device, a write request, the write request associated with an amount of data sized in dependence upon information describing a layout of memory in the storage device. The method may also include writing, by the storage device, the data to a memory unit, the data written to a location within the memory unit in dependence upon the information.

Claims

1. A method, comprising:

receiving, by a storage device, a write request from a storage array controller, the write request associated with an amount of data sized in dependence upon information describing a layout of memory in the storage device;

wherein the write request includes a physical address of the location in the storage device to store the data; and

writing, by the storage device, the data to a memory unit, the data written to a location within the memory unit in dependence upon the information.

2. The method of claim 1 wherein the information describing the layout of memory in the storage device includes information describing a size of a writeable memory unit in the storage device.

3. The method of claim 1 wherein the information describing the layout of memory in the storage device includes information describing a size of an erasable memory unit in the storage device.

4. The method of claim 1 wherein writing the data to the memory unit further comprises writing the data to an unused portion of the memory unit.

5. The method of claim 1 wherein writing the data to the memory unit further comprises writing the data to an unused memory unit.

6. A storage device, comprising:

a controller to;

receive a write request from the storage array controller, the write request associated with an amount of data sized in dependence upon information describing a layout of memory in the storage device;

wherein the write request includes a physical address of the location in the storage device to store the data; and

write the data to a memory unit, the data written to a location within the memory unit in dependence upon the information.

7. The storage device of claim 6 wherein the information describing the layout of memory in the storage device includes information describing a size of a writeable memory unit in the storage device.

8. The storage device of claim 6 wherein the information describing the layout of memory in the storage device includes information describing a size of an erasable memory unit in the storage device.

9. The storage device of claim 6 wherein to write the data to the memory unit the storage device is further to write the data to an unused portion of the memory unit.

10. The storage device of claim 6 wherein to write the data to the memory unit the storage device is further to write the data to an unused memory unit.

11. A non-transitory computer-readable storage medium having instructions stored thereon that when executed by a controller of a storage device cause the controller to:

receive, by the controller, a write request from the storage array controller, the write request associated with an amount of data sized in dependence upon information describing a layout of memory in the storage device;

wherein the write request includes a physical address of the location in the storage device to store the data; and

write, by the controller, the data to a memory unit, the data written to a location within the memory unit in dependence upon the information.

12. The non-transitory computer-readable storage medium of claim 11 wherein the information describing the layout of memory in the storage device includes information describing a size of a writeable memory unit in the storage device.

13. The non-transitory computer-readable storage medium of claim 11 wherein the information describing the layout of memory in the storage device includes information describing a size of an erasable memory unit in the storage device.

14. The non-transitory computer-readable storage medium of claim 11 wherein writing the data to the memory unit further comprises writing the data to an unused portion of the memory unit.

15. The non-transitory computer-readable storage medium of claim 11 wherein writing the data to the memory unit further comprises writing the data to an unused memory unit.