公开(公告)号：US20130111187A1

公开(公告)日：2013-05-02

申请号：US13706068

申请日：2012-12-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xian Liu ,  Daohui Wang ,  Deping Yang

IPC: G06F12/10

CPC classification number: G06F12/1018 ,  G06F3/0614 ,  G06F3/0626 ,  G06F3/065 ,  G06F3/067 ,  G06F3/0673 ,  G06F11/2094

Abstract: The present disclosure provides a data read and write method and apparatus and a storage system. The data read and write method includes: receiving, by a block storage driver of an origination device, a request for an LBA-based operation on a volume; converting the LBA-based operation request into a Key addressing-based operation request; and sending the Key addressing-based operation request to a routing library. Therefore, according to the present disclosure, reliability, availability, extensibility, and cheapness of the storage system may be improved, satisfying mass storage requirements for high extensibility, high reliability, high availability, and cheapness.

Abstract translation: 本公开提供了数据读写方法和装置以及存储系统。 数据读写方法包括：通过发起设备的块存储驱动器接收对卷的基于LBA的操作的请求; 将基于LBA的操作请求转换为基于键寻址的操作请求; 并将基于密钥寻址的操作请求发送到路由库。 因此，根据本公开，可以提高存储系统的可靠性，可用性，可扩展性和便宜性，满足高可扩展性，高可靠性，高可用性和便宜性的大容量存储要求。

公开(公告)号：US08938604B2

公开(公告)日：2015-01-20

申请号：US13706068

申请日：2012-12-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xian Liu ,  Daohui Wang ,  Deping Yang

IPC: G06F12/00 ,  G06F12/10 ,  G06F3/06 ,  G06F11/20

CPC classification number: G06F12/1018 ,  G06F3/0614 ,  G06F3/0626 ,  G06F3/065 ,  G06F3/067 ,  G06F3/0673 ,  G06F11/2094

Abstract: The present disclosure provides a storage system for data read and write. One embodiment of the storage system includes an origination device that is configured to receive a request for a logical block addressing-based operation on a volume, convert the logical block addressing-based operation request into a key addressing-based operation request carrying a key corresponding to data to be operated, and send the key addressing-based operation request to a routing library; the routing library is configured to receive the key addressing-based operation request, hash the key corresponding to the data to be operated, determine that a storage node taking charge of a hash region in which the hashed key is located is the master storage node, send the key addressing-based operation request to the master storage node of the data to be operated.

Abstract translation: 本公开提供了一种用于数据读取和写入的存储系统。 存储系统的一个实施例包括发起设备，其被配置为接收对卷的基于逻辑块寻址的操作的请求，将基于逻辑块寻址的操作请求转换为携带有对应密钥的基于密钥寻址的操作请求 到要运行的数据，并将基于密钥寻址的操作请求发送到路由库; 路由库被配置为接收基于密钥寻址的操作请求，对与要操作的数据相对应的密钥进行散列，确定负责散列密钥所在的散列区域的存储节点是主存储节点， 将基于密钥寻址的操作请求发送到要运行的数据的主存储节点。

公开(公告)号：US20130097402A1

公开(公告)日：2013-04-18

申请号：US13708603

申请日：2012-12-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dong Bao ,  Deping Yang

IPC: G06F12/02

CPC classification number: G06F12/0215 ,  G06F8/4442 ,  G06F12/0862 ,  G06F2212/1024 ,  G06F2212/314 ,  H04L67/2847

Abstract: Embodiments of the present disclosure provide a data prefetching method, a node, and a system. The method includes: a first storage node receives a read request sent by a client, determines a to-be-prefetched data block and a second storage node where the to-be-prefetched data block resides according to a read data block and a set to-be-prefetched data block threshold, and sends a prefetching request to the second storage node, the prefetching request includes identification information of the to-be-prefetched data block, and the identification information is used to identify the to-be-prefetched data block; and the second storage node reads the to-be-prefetched data block from a disk according to the prefetching request, and stores the to-be-prefetched data block in a local buffer, so that the client reads the to-be-prefetched data block from the local buffer of the second storage node.

Abstract translation: 本公开的实施例提供数据预取方法，节点和系统。 该方法包括：第一存储节点接收客户端发送的读取请求，根据读取的数据块和集合确定待预取数据块驻留的待预取数据块和第二存储节点 预取数据块阈值，并且向第二存储节点发送预取请求，预取请求包括待预取数据块的标识信息，并且识别信息用于识别要预取的数据块阈值 数据块 并且第二存储节点根据预取请求从盘读取待预取的数据块，并将待预取的数据块存储在本地缓冲器中，使得客户端读取要预取的数据 从第二个存储节点的本地缓冲区块。

公开(公告)号：US08738861B2

公开(公告)日：2014-05-27

申请号：US13708603

申请日：2012-12-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dong Bao ,  Deping Yang

IPC: G06F12/08 ,  G06F9/45

CPC classification number: G06F12/0215 ,  G06F8/4442 ,  G06F12/0862 ,  G06F2212/1024 ,  G06F2212/314 ,  H04L67/2847

Abstract: Embodiments of the present disclosure provide a data prefetching method, a node, and a system. The method includes: a first storage node receives a read request sent by a client, determines a to-be-prefetched data block and a second storage node where the to-be-prefetched data block resides according to a read data block and a set to-be-prefetched data block threshold, and sends a prefetching request to the second storage node, the prefetching request includes identification information of the to-be-prefetched data block, and the identification information is used to identify the to-be-prefetched data block; and the second storage node reads the to-be-prefetched data block from a disk according to the prefetching request, and stores the to-be-prefetched data block in a local buffer, so that the client reads the to-be-prefetched data block from the local buffer of the second storage node.

Abstract translation: 本公开的实施例提供数据预取方法，节点和系统。 该方法包括：第一存储节点接收客户端发送的读取请求，根据读取的数据块和集合确定待预取数据块驻留的待预取数据块和第二存储节点 预取数据块阈值，并且向第二存储节点发送预取请求，预取请求包括待预取数据块的标识信息，并且识别信息用于识别要预取的数据块阈值 数据块 并且第二存储节点根据预取请求从盘读取待预取的数据块，并将待预取的数据块存储在本地缓冲器中，使得客户端读取要预取的数据 从第二个存储节点的本地缓冲区块。