Granted Patent B2

US 12,724,544 · App. 18/613,617 · Granted Sep 1, 2026

Inventors: Ying Zhang (Chengdu, CN); Long Cheng (Ankara, TR)

Assignee: Huawei Technologies Co., Ltd.

G06F3/0619G06F3/0659G06F3/0683

Abstract

Claims (50)

1 . A device, comprising:

a controller;

a hot spare area; and

a data area,

wherein a storage function of the data area is provided by a first storage unit set comprised in the device, and the first storage unit set comprises a plurality of first-level storage units,

wherein a storage function of the hot spare area is provided by a plurality of second-level storage units comprised in the device, and a storage capacity of each of the first-level storage units that provides the storage function of the data area is greater than a storage capacity of each of the plurality of second-level storage units that provides the storage function of the hot spare area;

wherein the device further comprises a second storage unit set, the second storage unit set comprises a second plurality of first-level storage units providing the storage function of the hot spare area, the second plurality of first-level storage units is separate from the plurality of first-level storage units, and the plurality of second-level storage units is configured to be obtained by converting the second plurality of first-level storage units comprised in the second storage unit set such that a storage capacity of each of the second plurality of first-level storage units is greater than the storage capacity of each of the plurality of second-level storage units;

wherein the hot spare area always exists in the device after the converting to provide a cache of the device to temporarily store target data; and

wherein the controller is configured to write, under a first condition, the target data stored in the hot spare area into the data area.

2 . The device according to claim 1 , wherein

each of the first-level storage units is a multi-level cell (MLC), a triple-level cell (TLC), or a quad-level cell (QLC), and each of the plurality of second-level storage units is a single level cell (SLC);

each of the first-level storage units is a TLC or a QLC, and each of the plurality of second-level storage units is an SLC or an MLC; or

each of the first-level storage units is a QLC, and each of the plurality of second-level storage units is an SLC, an MLC, or a TLC.

3 . The device according to claim 1 , wherein in a running process of the device, the controller is configured to convert the second plurality of first-level storage units comprised in the second storage unit set into the plurality of second-level storage units.

4 . The device according to claim 3 , wherein

the controller is configured to when storage space of the hot spare area is insufficient to store the target data, convert the second plurality of first-level storage units comprised in the second storage unit set into the plurality of second-level storage units.

5 . The device according to claim 1 , wherein

when a hard disk in the device is faulty, the controller is configured to convert the plurality of second-level storage units into the plurality of first-level storage units, wherein the plurality of first-level storage units obtained through conversion is used to restore data stored in the hard disk.

6 . A method, performed by a storage device, and the method comprises:

providing, by a first storage unit set comprised in the storage device, a data area, wherein the first storage unit set comprises a plurality of first-level storage units;

providing, by a plurality of second-level storage units comprised in the storage device, a hot spare area, wherein a storage capacity of each of the plurality of first-level storage units that provides the data area is greater than a storage capacity of each of the plurality of second-level storage units that provides the hot spare area;

temporarily storing, by the hot spare area providing a cache of the storage device, target data,

wherein the storage device further comprises a second storage unit set, the second storage unit set comprises a second plurality of first-level storage units providing a storage function of the hot spare area, the second plurality of first-level storage units is separate from the plurality of first-level storage units, and the plurality of second-level storage units is configured to be obtained by converting the second plurality of first-level storage units comprised in the second storage unit set such that a storage capacity of each of the second plurality of first-level storage units is greater than the storage capacity of each of the plurality of second-level storage units;

wherein the hot spare area always exists in the storage device after the converting to provide the cache of the storage device; and

writing, by a controller comprised in the storage device, the target data stored in the hot spare area into the data area under a first condition.

7 . The method according to claim 6 , wherein each of the first-level storage units is a multi-level cell (MLC), a triple-level cell (TLC), or a quad-level cell (QLC), and each of the plurality of second-level storage units is a single level cell (SLC);

each of the first-level storage units is a TLC or a QLC, and each of the plurality of second-level storage units is an SLC or an MLC; or each of the first-level storage units is a QLC, and each of the plurality of second-level storage units is an SLC, an MLC, or a TLC.

8 . The method according to claim 6 , wherein the method further comprises:

in a running process of the storage device, converting, by the controller, the second plurality of first-level storage units comprised in the second storage unit set into the plurality of second-level storage units.

9 . The method according to claim 8 , wherein converting, by the controller, the second plurality of first-level storage units comprised in the second storage unit set into the plurality of second-level storage units comprises:

when storage space of the hot spare area is insufficient to store the target data, converting, by the controller, the second plurality of first-level storage units comprised in the second storage unit set into the plurality of second-level storage units.

10 . The method according to claim 6 , wherein the method further comprises:

when a hard disk in the storage device is faulty, converting, by the controller, the plurality of second-level storage units into plurality of the first-level storage units, wherein the plurality of first-level storage units obtained through conversion is used to restore data stored in the hard disk.

11 . A system, comprising:

a controller configured to obtain target data, and send the target data to a storage device; and

the storage device, wherein the storage device is configured to temporarily store the target data in a hot spare area comprised in the storage device, and a controller of the storage device is configured to write, under a first condition, the target data from the hot spare area into a data area comprised in the storage device,

wherein a storage function of the data area is provided by a first storage unit set comprised in the storage device, and the first storage unit set comprises a plurality of first-level storage units,

wherein a storage function of the hot spare area is provided by a plurality of second-level storage units comprised in the storage device, and a storage capacity of each of the first-level storage units that provides the storage function of the data area is greater than a storage capacity of each of the plurality of second-level storage units that provides the storage function of the hot spare area,

wherein the storage device further comprises a second storage unit set, the second storage unit set comprises a second plurality of first-level storage units providing the storage function of the hot spare area, the second plurality of first-level storage units is separate from the plurality of first-level storage units, and the plurality of second-level storage units is configured to be obtained by converting the second plurality of first-level storage units comprised in the second storage unit set such that a storage capacity of each of the second plurality of first-level storage units is greater than the storage capacity of each of the plurality of second-level storage units, and

wherein the hot spare area always exists in the storage device after the converting to provide a cache of the storage device to temporarily store target data.

12 . The storage device according to claim 11 , wherein

each of the first-level storage units is a multi-level cell (MLC), a triple-level cell (TLC), or a quad-level cell (QLC), and each of the plurality of second-level storage units is a single level cell (SLC);

each of the first-level storage units is a TLC or a QLC, and each of the plurality of second-level storage units is an SLC or an MLC; or

each of the first-level storage units is a QLC, and each of the plurality of second-level storage units is an SLC, an MLC, or a TLC.

13 . The storage device according to claim 11 , wherein

in a running process of the storage device, the controller of the storage device is configured to convert the second plurality of first-level storage units comprised in the second storage unit set into the plurality of second-level storage units.

14 . The storage device according to claim 13 , wherein

the controller of the storage device is configured to: when storage space of the hot spare area is insufficient to store the target data, convert the second plurality of first-level storage units comprised in the second storage unit set into the plurality of second-level storage units.

15 . The storage device according to claim 11 , wherein

when a hard disk in the storage device is faulty, the controller of the storage device is configured to convert the plurality of second-level storage units into the plurality of first-level storage units, wherein the plurality of first-level storage units obtained through conversion is used to restore data stored in the hard disk.

Assignments (1)

Priority Claims (1)

Continuity (2)

References Cited (10)