IP Library › Granted Patent US 9,804,794
Granted Patent B2
US 9,804,794 · App. 15/345,556 · Granted Oct 31, 2017

Techniques for providing data redundancy after reducing memory writes

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Quick Facts
Patent No.
US 9,804,794
App. No.
15/345,556
Granted
Oct 31, 2017
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 system receives a storage command for providing data redundancy in accordance with a first data redundancy scheme. The storage system then implements a subsequent data redundancy in accordance with a second data redundancy scheme.

Claims (38)

1. A storage system comprising:

a memory;

a communication bus coupled to a storage device; and

a central processor communicatively coupled to the communication bus and the memory, the central processor 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;

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

re-format the storage command from a first format compatible with the first data redundancy scheme into a second format compatible with the second data redundancy scheme.

2. The storage system of claim 1 , wherein the central processor is further configured to:

translate the storage command through the communication bus to result in a translated storage command, the translated storage command configured to provide the subsequent data redundancy; and

output the translated storage command to the storage device.

3. The storage system of claim 1 , wherein the storage device and the central processor utilize intra-drive redundancy.

4. The storage system of claim 1 , wherein the storage device comprises a primary storage device and at least one redundant storage device.

5. The storage system of claim 1 , wherein the first data redundancy scheme is selected from one 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.

6. The storage system of claim 1 , wherein the second data redundancy scheme is selected from one 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.

7. 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;

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

re-formatting, by the storage controller, the storage command from a first format compatible with the first data redundancy scheme into a second format compatible with the second data redundancy scheme.

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

9. The method of claim 7 , further comprising:

translating, by the storage controller, the storage command through a communication medium to result in a translated storage command, the translated storage command configured to provide the subsequent data redundancy; and

outputting, by the storage controller, the translated storage command to a storage device.

10. The method of claim 9 , wherein the storage device comprises a primary storage device and at least one redundant storage device.

11. The method of claim 7 , wherein the first data redundancy scheme is selected from one 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 method of claim 7 , wherein the second data redundancy scheme is selected from one 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.

13. A non-transitory computer readable medium having processor-executable instructions stored thereon that, when executed by a processor, cause the processor 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;

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

re-format the storage command from a first format compatible with the first data redundancy scheme into a second format compatible with the second data redundancy scheme.

14. The non-transitory computer readable medium of claim 13 , wherein the processor is further configured to:

translate the storage command through a communication medium to result in a translated storage command, the translated storage command configured to provide the subsequent data redundancy; and

output the translated storage command to a storage device.

15. The non-transitory computer readable medium of claim 14 , wherein the storage device comprises a primary storage device and at least one redundant storage device.

16. The non-transitory computer readable medium of claim 13 , wherein the processor utilizes intra-drive redundancy.

17. The non-transitory computer readable medium of claim 13 , wherein the first data redundancy scheme and the second data redundancy scheme are selected from one 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.