公开(公告)号：US10609150B2

公开(公告)日：2020-03-31

申请号：US16287479

申请日：2019-02-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wenhai Lan ,  Wei Zhang ,  Xueyou Wang ,  Yue Zhang

IPC: H04L29/08 ,  G06F15/177 ,  G06F9/52 ,  G06F15/173 ,  G06F3/06

Abstract: A lock management solution in a cluster, where the cluster includes a client and a lock server, the lock server includes an interface card and a memory, the memory stores a read lock request queue recording an identifier of a client waiting for a read lock or obtaining the read lock, the memory further stores a write lock request queue recording an identifier of a client waiting for a write lock or obtains the write lock, and the memory further includes a read lock allocation count and a write lock allocation identifier, where the read lock allocation count records an allocated read lock, and the write lock allocation identifier indicates whether the write lock has been allocated.

公开(公告)号：US20190199801A1

公开(公告)日：2019-06-27

申请号：US16287479

申请日：2019-02-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wenhai Lan ,  Wei Zhang ,  Xueyou Wang ,  Yue Zhang

IPC: H04L29/08 ,  G06F9/52 ,  G06F15/177 ,  G06F15/173

CPC classification number: H04L67/14 ,  G06F3/0622 ,  G06F3/0637 ,  G06F3/067 ,  G06F9/52 ,  G06F9/526 ,  G06F15/17331 ,  G06F15/177

Abstract: A lock management solution in a cluster, where the cluster includes a client and a lock server, the lock server includes an interface card and a memory, the memory stores a read lock request queue recording an identifier of a client waiting for a read lock or obtaining the read lock, the memory further stores a write lock request queue recording an identifier of a client waiting for a write lock or obtains the write lock, and the memory further includes a read lock allocation count and a write lock allocation identifier, where the read lock allocation count records an allocated read lock, and the write lock allocation identifier indicates whether the write lock has been allocated.

公开(公告)号：US20180234503A1

公开(公告)日：2018-08-16

申请号：US15955276

申请日：2018-04-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wenhai Lan ,  Wei Zhang ,  Xueyou Wang ,  Yue Zhang

IPC: H04L29/08 ,  G06F15/173 ,  G06F9/52

CPC classification number: H04L67/14 ,  G06F9/52 ,  G06F9/526 ,  G06F15/17331 ,  G06F15/177

Abstract: A lock management solution in a cluster, where the cluster includes a client and a lock server, the lock server includes an interface card and a memory, the memory stores a read lock request queue recording an identifier of a client waiting for a read lock or obtaining the read lock, the memory further stores a write lock request queue recording an identifier of a client waiting for a write lock or obtains the write lock, and the memory further includes a read lock allocation count and a write lock allocation identifier, where the read lock allocation count records an allocated read lock, and the write lock allocation identifier indicates whether the write lock has been allocated.

公开(公告)号：US10257282B2

公开(公告)日：2019-04-09

申请号：US15955276

申请日：2018-04-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wenhai Lan ,  Wei Zhang ,  Xueyou Wang ,  Yue Zhang

IPC: G06F15/16 ,  H04L29/08 ,  G06F15/177 ,  G06F9/52 ,  G06F15/173

Abstract: A lock management solution in a cluster, where the cluster includes a client and a lock server, the lock server includes an interface card and a memory, the memory stores a read lock request queue recording an identifier of a client waiting for a read lock or obtaining the read lock, the memory further stores a write lock request queue recording an identifier of a client waiting for a write lock or obtains the write lock, and the memory further includes a read lock allocation count and a write lock allocation identifier, where the read lock allocation count records an allocated read lock, and the write lock allocation identifier indicates whether the write lock has been allocated.

公开(公告)号：US10216446B2

公开(公告)日：2019-02-26

申请号：US15960546

申请日：2018-04-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wenhai Lan ,  Wei Zhang ,  Xiaoan Yu ,  Xuyou Liu ,  Zhixiong Zhang

IPC: G06F3/06 ,  G06F12/1009 ,  G06F11/14 ,  G06F17/30

Abstract: A solution to deduplication in a storage system is disclosed herein. In this solution, a controller stores, at a first storage address, a data block that is written for the first time, and inserts, in a fingerprint table, a first fingerprint of first data that is written for the first time, but does not establish a mapping relationship between the first fingerprint and the first storage address. When receiving subsequently written second data to be written, the controller allocates a second storage address to the duplicate second data, stores the second data at the second storage address, and establishes a mapping relationship between the first fingerprint and the second storage address in the fingerprint table. This reduces an amount of data in the fingerprint table.