Method and apparatus, and readable storage medium

Patent metadata

Field	Value
Publication number	US-11714733-B2
Application number	US-202117545203-A
Country	US
Kind code	B2
Filing date	Dec 8, 2021
Priority date	Sep 22, 2017
Publication date	Aug 1, 2023
Grant date	Aug 1, 2023

Abstract

A redundant array of independent disks (RAID) management method includes, when detecting that a component in a storage medium fails, recovering, based on a RAID policy, data stored in the failed component, saving the recovered data into a pre-defined redundant space of the RAID, and mapping an address of the failed component with the address of the redundant space, converting, according to the mapping, an address of to-be-accessed data comprised in an accessing request into an address within the redundant space, and accessing the to-be-accessed data from the redundant space according to the address within the redundant space.

First claim

What is claimed is:

1. A management method implemented by a storage system, wherein the management method comprises:
obtaining a maintenance-free parameter;
determining a capacity of an over-provisioning (OP) space of the storage system according to the maintenance-free parameter; and
configuring the OP space with the capacity.

2. The management method of claim 1 , further comprising further determining the capacity according to a disk parameter.

3. The management method of claim 2 , wherein the disk parameter comprises at least one of an annualized failure rate (AFR) of the storage system or a quantity of disks comprised in the storage system.

4. The management method of claim 2 , wherein after configuring the OP space, the management method further comprises reconfiguring a redundant array of independent disks (RAID) policy based on remaining disks that were not used to configure the OP space.

5. The management method of claim 1 , wherein the maintenance-free parameter comprises at least one of a maintenance-free rate or a maintenance-free period.

6. The management method of claim 5 , further comprising:
receiving a configuration instruction; and
obtaining the maintenance-free parameter from the configuration instruction.

7. The management method of claim 1 , further comprising:
determining disks used to configure the OP space;
determining a disk capacity of each of the disks; and
configuring the disk capacity of each of the disks used as the OP space.

8. A storage system, comprising:
a memory configured to store programming instructions; and
a processor coupled to the memory, wherein the programming instructions cause the processor to be configured to:
obtain a maintenance-free parameter;
determine a capacity of an over-provisioning (OP) space of the storage system according to the maintenance-free parameter; and
configure the OP space with the capacity.

9. The storage system of claim 8 , wherein the programming instructions further cause the processor to be configured to further determine the capacity according to the maintenance-free parameter and a disk parameter.

10. The storage system of claim 9 , wherein the disk parameter comprises at least one of an annualized failure rate (AFR) of the storage system or a quantity of disks comprised in the storage system.

11. The storage system of claim 9 , wherein after configuring the OP space, the programming instructions further cause the processor to be configured to reconfigure a redundant array of independent disks (RAID) policy based on remaining disks that were not used to configure the OP space.

12. The storage system of claim 8 , wherein the maintenance-free parameter comprises at least one of a maintenance-free rate or a maintenance-free period.

13. The storage system of claim 12 , wherein the programming instructions further cause the processor to be configured to:
receive a configuration instruction; and
obtain the maintenance-free parameter from the configuration instruction.

14. The storage system of claim 8 , wherein the programming instructions further cause the processor to be configured to:
determine disks used to configure the OP space;
determine a disk capacity of each of the disks; and
configure the disk capacity of each of the disks as the OP space.

15. A computer program product comprising computer-executable instructions stored on a non-transitory computer-readable medium that, when executed by a processor, cause a storage system to:
obtain a maintenance-free parameter;
determine a capacity of an over-provisioning (OP) space of the storage system according to the maintenance-free parameter; and
configure the OP space with the capacity.

16. The computer program product of claim 15 , wherein the instructions further cause the storage system to further determine the capacity according to the maintenance-free parameter and a disk parameter.

17. The computer program product of claim 16 , wherein the disk parameter comprises at least one of an annualized failure rate (AFR) of the storage system or a quantity of disks comprised in the storage system.

18. The computer program product of claim 16 , wherein after configuring the OP space, the instructions further cause the storage system to reconfigure a redundant array of independent disks (RAID) policy based on remaining disks that were not used to configure the OP space.

19. The computer program product of claim 15 , wherein the maintenance-free parameter comprises at least one of a maintenance-free rate or a maintenance-free period.

20. The computer program product of claim 19 , wherein the instructions further cause the storage system to:
receive a configuration instruction; and
obtain the maintenance-free parameter from the configuration instruction.

Assignees

• Huawei Tech Co Ltd

Inventors

• Zhou Jianhua
• Zhou Meng

Classifications

• G06F11/2094 Primary

  Redundant storage or storage space (G06F11/2056 takes precedence) · CPC title

• G06F2201/82

  Solving problems relating to consistency · CPC title

• G06F11/1612 Primary

  where the redundant component is persistent storage · CPC title

• G06F11/1662

  the resynchronized component or unit being a persistent storage device (re-synchronization of failed mirror storage G06F11/2082; rebuild or reconstruction of parity RAID storage G06F11/1008) · CPC title

• G06F11/16

  Error detection or correction of the data by redundancy in hardware · CPC title