公开(公告)号：US11307776B2

公开(公告)日：2022-04-19

申请号：US16574421

申请日：2019-09-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dingguo Yang

IPC: G06F3/06

Abstract: In a distributed storage system, a first storage node receives a first data read request for reading first data. The first data request includes a first address of the first data. The first storage node determines that the first data are stored in a first storage device included in the first storage node based on the first address. Based on the determination, the first storage node checks whether the first storage device is in a trusted access state. Further, the first storage node obtains the first data when the first storage device is in the trusted access state.

公开(公告)号：US11704239B2

公开(公告)日：2023-07-18

申请号：US16577106

申请日：2019-09-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Rui Feng ,  Shengqian Jia ,  Dingguo Yang

IPC: G06F12/02 ,  G06F3/06 ,  G06F12/0891

CPC classification number: G06F12/0253 ,  G06F3/064 ,  G06F3/065 ,  G06F3/0679 ,  G06F12/0891 ,  G06F3/0607

Abstract: A garbage collection technology for a storage medium that includes a plurality of blocks, where each storage unit has a collection parameter related to data in one of the blocks, and where each block includes a plurality of pages. A group of blocks is selected from the plurality of blocks based on the collection parameter. A difference between values of collection parameters of any two blocks in the group of blocks is not greater than a preset value. Data in a first valid page and a second valid page in the group of blocks is replicated to a same destination block, to facilitate garbage collection.

公开(公告)号：US20200012442A1

公开(公告)日：2020-01-09

申请号：US16574421

申请日：2019-09-18

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Dingguo Yang

IPC: G06F3/06

Abstract: In a distributed storage system, a first storage node receives a first data read request for reading first data. The first data request includes a first address of the first data. The first storage node determines that the first data are stored in a first storage device included in the first storage node based on the first address. Based on the determination, the first storage node checks whether the first storage device is in a trusted access state. Further, the first storage node obtains the first data when the first storage device is in the trusted access state.

公开(公告)号：US20200012598A1

公开(公告)日：2020-01-09

申请号：US16577106

申请日：2019-09-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Rui Feng ,  Shengqian Jia ,  Dingguo Yang

IPC: G06F12/02 ,  G06F12/0891 ,  G06F3/06

Abstract: A garbage collection technology for a storage medium that includes a plurality of blocks, where each storage unit has a collection parameter related to data in one of the blocks, and where each block includes a plurality of pages. A group of blocks is selected from the plurality of blocks based on the collection parameter. A difference between values of collection parameters of any two blocks in the group of blocks is not greater than a preset value. Data in a first valid page and a second valid page in the group of blocks is replicated to a same destination block, to facilitate garbage collection.