公开(公告)号：US20170153822A1

公开(公告)日：2017-06-01

申请号：US15428527

申请日：2017-02-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jun XU ,  Junfeng ZHAO ,  Yuangang WANG

IPC: G06F3/06

CPC classification number: G06F3/0607 ,  G06F3/0631 ,  G06F3/0643 ,  G06F3/0652 ,  G06F3/067 ,  G06F17/30091

Abstract: A file management method, a distributed storage system, and a management node are disclosed. In the distributed storage system, after receiving a file creation request sent by a host for requesting to create a file in a distributed storage system, a management node allocates, to the file, first virtual space from global virtual address space of the distributed storage system, where local virtual address space of each storage node in the distributed storage system is corresponding to a part of the global virtual address space. Then, the management node records metadata of the file, where the metadata of the file includes information about the first virtual space, and the information about the first virtual space is used to point to local virtual address space of a storage node that is used to store the file. Further, the management node sends, the information about the first virtual space to the host.

公开(公告)号：US20190220434A1

公开(公告)日：2019-07-18

申请号：US16365677

申请日：2019-03-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fen DAI ,  Xing HU ,  Jun XU ,  Yuangang WANG

IPC: G06F13/40 ,  G06F13/16 ,  H04L12/26

Abstract: A memory extensible chip (200) is provided. The chip (200) includes a substrate (240), and a processor (230), a first memory module set (210), and a second memory module set (220) that are integrated on the substrate (240). The processor (230) communicates with at least one memory module in the first memory module set (210) using a first communications interface (250), and the processor (230) communicates with at least one memory module in the second memory module set (220) using a second communications interface (260). A memory module in the first memory module set (210) communicates with a memory module in the second memory module set (220) using a substrate network, where the substrate network is a communications network located inside the substrate (240). In this way, the processor (230) can access a memory module in the first memory module set (210) by using the second memory module set (220).

公开(公告)号：US20190212941A1

公开(公告)日：2019-07-11

申请号：US16355595

申请日：2019-03-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Tianxiang LI ,  Jun XU ,  Yuangang WANG

IPC: G06F3/06 ,  G06F11/14

CPC classification number: G06F3/0649 ,  G06F3/06 ,  G06F3/0616 ,  G06F3/064 ,  G06F3/067 ,  G06F11/1448 ,  H04L29/08

Abstract: A data access method, a routing apparatus, and a storage system are provided. The method is applied to a storage system including a first storage device, a second storage device, and a routing apparatus. A logical unit in each storage device includes at least one first-type logical block and at least one second-type logical block. According to the method, when sending access requests to the storage devices in the storage system according to a preset rule, the routing apparatus sends access requests corresponding to same target logical blocks to one of the storage devices according to a preset rule. This reduces network overheads between the storage system and the application server, and improves efficiency of processing the access requests by the storage system.

公开(公告)号：US20210255775A1

公开(公告)日：2021-08-19

申请号：US17306494

申请日：2021-05-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jun XU ,  Junfeng ZHAO ,  Yuangang WANG

IPC: G06F3/06 ,  G06F16/13

Abstract: A file management method, a distributed storage system, and a management node are disclosed. In the distributed storage system, after receiving a file creation request sent by a host for requesting to create a file in a distributed storage system, a management node allocates, to the file, first virtual space from global virtual address space of the distributed storage system, where local virtual address space of each storage node in the distributed storage system is corresponding to a part of the global virtual address space. Then, the management node records metadata of the file, where the metadata of the file includes information about the first virtual space, and the information about the first virtual space is used to point to local virtual address space of a storage node that is used to store the file. Further, the management node sends, the information about the first virtual space to the host.

公开(公告)号：US20190196738A1

公开(公告)日：2019-06-27

申请号：US16291852

申请日：2019-03-04

Applicant: Huawei Technologies Co., Ltd. ,  UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA

Inventor： Yinlong XU ,  Zhipeng LI ,  Yuangang WANG

IPC: G06F3/06 ,  G06F16/13 ,  G06F17/11

CPC classification number: G06F3/0647 ,  G06F3/0607 ,  G06F3/0611 ,  G06F3/0619 ,  G06F3/064 ,  G06F3/0646 ,  G06F3/0689 ,  G06F11/1076 ,  G06F16/13 ,  G06F17/11

Abstract: A data migration method for a storage system after expansion and a storage system are provided. After an ith expansion is performed on the storage system, data migration is performed by using an auxiliary balanced incomplete block design. Because a quantity of tuples including any element in the auxiliary balanced incomplete block design is identical, and each migration unit includes an identical quantity of parity chunks, a data migration amount after the expansion is minimized. In this way, time required for data migration after the expansion is significantly reduced, and a delay in a response to a user request that is caused because a data migration operation needs to be performed after the expansion is also reduced.