IP Library › Granted Patent US 9,501,357
Granted Patent B2
US 9,501,357 · App. 14/821,020 · Granted Nov 22, 2016

Techniques for providing data redundancy after reducing memory writes

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Quick Facts
Patent No.
US 9,501,357
App. No.
14/821,020
Granted
Nov 22, 2016
Kind
B2
Abstract

The present disclosure relates to techniques for providing data redundancy after reducing memory writes. In one example implementation according to aspects of the present disclosure, a storage controller receives a storage command for providing data redundancy in accordance with a first data redundancy scheme. The storage controller then translates the storage command for providing the data redundancy in accordance with a second data redundancy scheme.

Claims (42)

1. A method comprising:

receiving, at a storage controller, a storage command for providing data redundancy;

implementing, by the storage controller, the data redundancy by receiving and reducing a number of writes in accordance with a first data redundancy scheme;

translating, by the storage controller, the storage command for providing a subsequent data redundancy; and

implementing, by the storage controller, the subsequent data redundancy in accordance with a second data redundancy scheme, the first data redundancy scheme differing from the second data redundancy scheme.

2. The method of claim 1 , wherein the first data redundancy scheme is selected from the group consisting of a redundant array of independent disks (RAID)-5 data redundancy scheme, a RAID-6 data redundancy scheme, a RAID-10 data redundancy scheme, a RAID-50 data redundancy scheme, a RAID-60 data redundancy scheme, and a square parity redundancy scheme.

3. The method of claim 1 , wherein the second data redundancy scheme is selected from the group consisting of a redundant array of independent disks (RAID)-5 data redundancy scheme, a RAID-6 data redundancy scheme, a RAID-10 data redundancy scheme, a RAID-50 data redundancy scheme, a RAID-60 data redundancy scheme, and a square parity redundancy scheme.

4. The method of claim 1 , further comprising:

outputting, by the storage controller, the translated storage commands for providing the subsequent data redundancy in a plurality of storage devices.

5. The method of claim 4 , wherein the plurality of storage devices comprise one or more primary storage devices and one or more redundant storage devices.

6. The method of claim 1 , further comprising:

formatting, by the storage controller, the storage commands that are received for providing the data redundancy in accordance with the first data redundancy scheme into a format compatible with the second data redundancy scheme.

7. The method of claim 1 , wherein the storage controller is a redundant array of independent disks (RAID) controller.

8. A storage system comprising:

a plurality of storage devices; and

a plurality of storage controllers in communication with the plurality of storage devices, the plurality of storage controllers configured to

receive a storage command for providing data redundancy;

implement the data redundancy by receiving and reducing a number of writes in accordance with a first data redundancy scheme;

translate the storage command for providing a subsequent data redundancy; and

implement the subsequent data redundancy in accordance with a second data redundancy scheme, the first data redundancy scheme differing from the second data redundancy scheme.

9. The storage system of claim 8 , wherein the plurality of storage devices comprise one or more primary storage devices and one or more redundant storage devices.

10. The storage system of claim 8 , wherein the first data redundancy scheme is selected from the group consisting of a redundant array of independent disks (RAID)-5 data redundancy scheme, a RAID-6 data redundancy scheme, a RAID-10 data redundancy scheme, a RAID-50 data redundancy scheme, a RAID-60 data redundancy scheme, and a square parity redundancy scheme.

11. The storage system of claim 8 , wherein the second data redundancy scheme is selected from the group consisting of a redundant array of independent disks (RAID)-5 data redundancy scheme, a RAID-6 data redundancy scheme, a RAID-10 data redundancy scheme, a RAID-50 data redundancy scheme, a RAID-60 data redundancy scheme, and a square parity redundancy scheme.

12. The storage system of claim 8 , wherein the plurality of storage controllers are further configured to:

output the translated storage commands for providing the subsequent data redundancy in the plurality of storage devices.

13. The storage system of claim 8 , wherein the plurality of storage controllers are further configured to:

format the storage commands that are received for providing the data redundancy in accordance with the first data redundancy scheme into a format compatible with the second data redundancy scheme.

14. The storage system of claim 8 , wherein the plurality of storage devices and the plurality of storage controllers utilize intra-drive redundancy.

15. A non-transitory machine-readable storage medium having embodied therein a computer program product, comprising:

computer code to receive a storage command for providing data redundancy;

computer code to implement the data redundancy by receiving and reducing a number of writes in accordance with a first data redundancy scheme;

computer code to translate the storage command for providing a subsequent data redundancy; and

computer code to implement the subsequent data redundancy in accordance with a second data redundancy scheme, the first data redundancy scheme differing from the second data redundancy scheme;

and

computer code to output the translated storage commands for providing the subsequent data redundancy in a plurality of storage devices.

16. The non-transitory machine-readable storage medium of claim 15 , wherein the plurality of storage devices comprise one or more primary storage devices and one or more redundant storage devices.

17. The non-transitory machine-readable storage medium of claim 15 ,

wherein the first data redundancy scheme is selected from the group consisting of a redundant array of independent disks (RAID)-5 data redundancy scheme, a RAID-6 data redundancy scheme, a RAID-10 data redundancy scheme, a RAID-50 data redundancy scheme, a RAID-60 data redundancy scheme, and a square parity redundancy scheme, and

wherein the second data redundancy scheme is selected from the group consisting of a redundant array of independent disks (RAID)-5 data redundancy scheme, a RAID-6 data redundancy scheme, a RAID-10 data redundancy scheme, a RAID-50 data redundancy scheme, a RAID-60 data redundancy scheme, and a square parity redundancy scheme.

18. The non-transitory machine-readable storage medium of claim 15 , wherein the plurality of storage devices comprise one or more primary storage devices and one or more redundant storage devices.

19. The non-transitory machine-readable storage medium of claim 15 , the computer program product further comprising computer code to format the storage commands that are received for providing data redundancy in accordance with a first data redundancy scheme into a format compatible with the second data redundancy scheme.

20. The non-transitory machine-readable storage medium of claim 15 , wherein the plurality of storage devices are configured to utilize intra-drive redundancy.