公开(公告)号：US20180165014A1

公开(公告)日：2018-06-14

申请号：US15889209

申请日：2018-02-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Peijun Jiang ,  Qiang Xue ,  Keji Huang

IPC: G06F3/06 ,  G06F12/02

Abstract: Application relates to storage technologies, and in particular, to writing data in a storage system having solid state disks. Embodiments of the application provide an array controller, including a communication interface and a processor. The processor receives information about a logical block from a solid state disk. The information about the logical block includes a size of the logical block and indication information of the logical block, and the logical block includes one or more physical blocks. The processor sends multiple write data requests to the solid state disk. Each write data request includes data, and each write data request instructs the solid state disk to write the data into the logical block indicated by the indication information of the logical block. A total size of data included in the multiple write data requests is equivalent to the size of the logical block.

公开(公告)号：US10761731B2

公开(公告)日：2020-09-01

申请号：US15889209

申请日：2018-02-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Peijun Jiang ,  Qiang Xue ,  Keji Huang

IPC: G06F12/00 ,  G06F3/06 ,  G06F12/02 ,  G06F12/0804 ,  G06F12/06 ,  G06F12/0868

Abstract: Application relates to storage technologies, and in particular, to writing data in a storage system having solid state disks. Embodiments of the application provide an array controller, including a communication interface and a processor. The processor receives information about a logical block from a solid state disk. The information about the logical block includes a size of the logical block and indication information of the logical block, and the logical block includes one or more physical blocks. The processor sends multiple write data requests to the solid state disk. Each write data request includes data, and each write data request instructs the solid state disk to write the data into the logical block indicated by the indication information of the logical block. A total size of data included in the multiple write data requests is equivalent to the size of the logical block.

公开(公告)号：US20200183831A1

公开(公告)日：2020-06-11

申请号：US16792431

申请日：2020-02-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qiang Xue ,  Peijun Jiang

IPC: G06F12/02 ,  G06F3/06 ,  G11C16/06 ,  G06F12/00

Abstract: A storage system and a system garbage collection method are provided. The storage system includes a first controller, a second controller, and a solid state disk. The first controller or the second controller manages storage space of the solid state disk in a unit of a segment. The first controller is configured to perform system garbage collection on multiple segments of segments managed by the first controller. The second controller is configured to: when the first controller performs system garbage collection, perform system garbage collection on multiple segments of segments managed by the second controller. The multiple segments of the segments managed by the first controller and the multiple segments of the segments managed by the second controller are allocated within a same time period. Therefore, a quantity of times of write amplification in the solid state disk can be reduced.

公开(公告)号：US10706072B2

公开(公告)日：2020-07-07

申请号：US16721240

申请日：2019-12-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yijia Chen ,  Ji Ouyang ,  Peijun Jiang

IPC: G06F16/27 ,  G06F11/20 ,  G06F3/06

Abstract: A data replication method and a storage system are provided. The method is applied to a storage system including a first storage device and a second storage device. According to the method, after determining replication information, a first storage system determines a first replication sub-information and a second replication sub-information according to the replication information, where the replication information is used to indicate data that needs to be replicated by the first storage system to a second storage system in a current replication task. Then, the first storage device replicates data to the second storage system according to the second replication sub-information, and the second storage device replicates data to the second storage system according to the second replication sub-information. According to the data replication method, efficiency of replication performed between the first storage system and the second storage system can be improved.

公开(公告)号：US11734306B2

公开(公告)日：2023-08-22

申请号：US16888254

申请日：2020-05-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yijia Chen ,  Ji Ouyang ,  Peijun Jiang

IPC: G06F16/27 ,  G06F11/20 ,  G06F3/06

CPC classification number: G06F16/273 ,  G06F3/061 ,  G06F3/065 ,  G06F3/067 ,  G06F11/2074 ,  G06F11/2094 ,  G06F11/2097

Abstract: A data replication method and a storage system are provided. The method is applied to a storage system including a first storage device and a second storage device. According to the method, after determining replication information, a first storage system determines a first replication sub-information and a second replication sub-information according to the replication information, where the replication information is used to indicate data that needs to be replicated by the first storage system to a second storage system in a current replication task. Then, the first storage device replicates data to the second storage system according to the second replication sub-information, and the second storage device replicates data to the second storage system according to the second replication sub-information.

公开(公告)号：US10545994B2

公开(公告)日：2020-01-28

申请号：US15177877

申请日：2016-06-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yijia Chen ,  Ji Ouyang ,  Peijun Jiang

IPC: G06F16/27 ,  G06F11/20 ,  G06F3/06

Abstract: A data replication method and a storage system are provided. The method is applied to a storage system including a first storage device and a second storage device. According to the method, after determining replication information, a first storage system determines a first replication sub-information and a second replication sub-information according to the replication information, where the replication information is used to indicate data that needs to be replicated by the first storage system to a second storage system in a current replication task. Then, the first storage device replicates data to the second storage system according to the second replication sub-information, and the second storage device replicates data to the second storage system according to the second replication sub-information. According to the data replication method, efficiency of replication performed between the first storage system and the second storage system can be improved.

公开(公告)号：US20180349272A1

公开(公告)日：2018-12-06

申请号：US16059938

申请日：2018-08-09

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Qiang Xue ,  Peijun Jiang

IPC: G06F12/02 ,  G06F3/06

CPC classification number: G06F12/0246 ,  G06F12/00 ,  G06F12/02 ,  G06F2212/7205 ,  G11C16/06

Abstract: A storage system and a system garbage collection method are provided. The storage system includes a first controller, a second controller, and a solid state disk. The first controller or the second controller manages storage space of the solid state disk in a unit of a segment. The first controller is configured to perform system garbage collection on multiple segments of segments managed by the first controller. The second controller is configured to: when the first controller performs system garbage collection, perform system garbage collection on multiple segments of segments managed by the second controller. The multiple segments of the segments managed by the first controller and the multiple segments of the segments managed by the second controller are allocated within a same time period. Therefore, a quantity of times of write amplification in the solid state disk can be reduced.