公开(公告)号：US09389790B2

公开(公告)日：2016-07-12

申请号：US14582509

申请日：2014-12-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yan Xu ,  Yaping Sun ,  Huiqiang Zhou

IPC: G06F12/00 ,  G06F3/06 ,  G06F11/10 ,  G06F17/16

CPC classification number: G06F3/0619 ,  G06F3/061 ,  G06F3/064 ,  G06F3/0665 ,  G06F3/0689 ,  G06F11/1076 ,  G06F17/16

Abstract: According to the method for determining a redundant array of independent disks provided in the present invention, for an actual physical disk including n disk groups in which each disk group includes m disks, the n disk groups include m2*(m*n) logical blocks, and a logical block matrix corresponding to m distributed RAIDs can be generated. Therefore, a correspondence between the actual physical disk and the distributed RAIDs can be obtained. In a scenario of data storage or the like, a mapping relationship table of the physical disk and the RAIDs does not need to be stored.

Abstract translation: 根据本发明提供的用于确定独立磁盘的冗余阵列的方法，对于包括n个磁盘组的实际物理磁盘，每个磁盘组包括m个磁盘，n个磁盘组包括m2 *（m * n）个逻辑块 ，并且可以生成与m个分布式RAID相对应的逻辑块矩阵。 因此，可以获得实际物理盘与分布式RAID之间的对应关系。 在数据存储等的情况下，不需要存储物理盘和RAID的映射关系表。

公开(公告)号：US09354826B2

公开(公告)日：2016-05-31

申请号：US14454054

申请日：2014-08-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yan Xu ,  Yaping Sun ,  Huiqiang Zhou

IPC: G06F3/06

CPC classification number: G06F3/0689 ,  G06F3/0604 ,  G06F3/0607 ,  G06F3/0629 ,  G06F3/0631 ,  G06F3/0632 ,  G06F3/0665

Abstract: Embodiments of the present invention provide a capacity expansion method and device, so as to reduce the time needed by capacity expansion of a hard disk. The method specifically includes: dividing, in a distributed redundant array of independent disks RAID system, each hard disk into virtual hard disks of equal size equally; dividing an original hard disk into X groups equally; selecting m virtual hard disks from each hard disk in sequence to form one original hard disk; selecting m virtual hard disks from each added hard disk and inserting the m virtual hard disks into the virtual hard disk group; moving, in the virtual hard disk group, data in virtual hard disks of the original hard disk to the virtual hard disks of the added hard disk. The present invention is applied to capacity expansion of a hard disk.

Abstract translation: 本发明的实施例提供一种容量扩展方法和装置，以减少硬盘的容量扩展所需的时间。 该方法具体包括：在独立磁盘RAID系统的分布式冗余阵列中，将每个硬盘分成相同大小的虚拟硬盘; 将原始硬盘平均分为X组; 从每个硬盘依次选择m个虚拟硬盘，形成一个原始硬盘; 从每个添加的硬盘中选择m个虚拟硬盘，并将m个虚拟硬盘插入虚拟硬盘组; 在虚拟硬盘组中将原始硬盘的虚拟硬盘中的数据移动到添加的硬盘的虚拟硬盘。 本发明适用于硬盘的容量扩展。

公开(公告)号：US09529675B2

公开(公告)日：2016-12-27

申请号：US14331485

申请日：2014-07-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaohui Ma ,  Yaping Sun ,  Haixiao Chen

IPC: G06F11/00 ,  G06F11/10

CPC classification number: G06F11/1088 ,  G06F11/1076 ,  G06F11/1084 ,  G06F2211/1028

Abstract: A data recovery method, a data recovery device and a distributed storage system are provided, where the method includes: in a case that a distributed storage system loses data of three nodes, recovering data on a target data storage node of the data on the three nodes according to data of a parity node and a data storage node without data loss; and performing degraded recovery on the remaining lost data according to the recovered data of the target data storage node. According to the embodiments of the present invention, a target data storage node first recovered is determined according to the symmetry of lost data, and the lost data of three nodes is recovered according to parity data and data that is not lost, which can improve the data recovery performance of the distributed storage system in a case that the data of three nodes is lost.

Abstract translation: 提供了一种数据恢复方法，数据恢复装置和分布式存储系统，其中所述方法包括：在分布式存储系统丢失三个节点的数据的情况下，在三个数据的目标数据存储节点上恢复数据 节点根据奇偶校验节点的数据和没有数据丢失的数据存储节点; 并根据目标数据存储节点的恢复数据，对剩余的丢失数据进行退化恢复。 根据本发明的实施例，根据丢失数据的对称性确定首先恢复的目标数据存储节点，并且根据奇偶校验数据和不丢失的数据恢复三个节点的丢失数据，这可以改善 在三个节点的数据丢失的情况下，分布式存储系统的数据恢复性能。

公开(公告)号：US20150033070A1

公开(公告)日：2015-01-29

申请号：US14331485

申请日：2014-07-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaohui Ma ,  Yaping Sun ,  Haixiao Chen

IPC: G06F11/10

CPC classification number: G06F11/1088 ,  G06F11/1076 ,  G06F11/1084 ,  G06F2211/1028

Abstract: A data recovery method, a data recovery device and a distributed storage system are provided, where the method includes: in a case that a distributed storage system loses data of three nodes, recovering data on a target data storage node of the data on the three nodes according to data of a parity node and a data storage node without data loss; and performing degraded recovery on the remaining lost data according to the recovered data of the target data storage node. According to the embodiments of the present invention, a target data storage node first recovered is determined according to the symmetry of lost data, and the lost data of three nodes is recovered according to parity data and data that is not lost, which can improve the data recovery performance of the distributed storage system in a case that the data of three nodes is lost.

Abstract translation: 提供了一种数据恢复方法，数据恢复装置和分布式存储系统，其中所述方法包括：在分布式存储系统丢失三个节点的数据的情况下，在三个数据的目标数据存储节点上恢复数据 节点根据奇偶校验节点的数据和没有数据丢失的数据存储节点; 并根据目标数据存储节点的恢复数据，对剩余的丢失数据进行退化恢复。 根据本发明的实施例，根据丢失数据的对称性确定首先恢复的目标数据存储节点，并且根据奇偶校验数据和不丢失的数据恢复三个节点的丢失数据，这可以改善 在三个节点的数据丢失的情况下，分布式存储系统的数据恢复性能。

公开(公告)号：US20140351512A1

公开(公告)日：2014-11-27

申请号：US14454054

申请日：2014-08-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yan Xu ,  Yaping Sun ,  Huiqiang Zhou

IPC: G06F3/06

CPC classification number: G06F3/0689 ,  G06F3/0604 ,  G06F3/0607 ,  G06F3/0629 ,  G06F3/0631 ,  G06F3/0632 ,  G06F3/0665

Abstract: Embodiments of the present invention provide a capacity expansion method and device, so as to reduce the time needed by capacity expansion of a hard disk. The method specifically includes: dividing, in a distributed redundant array of independent disks RAID system, each hard disk into virtual hard disks of equal size equally; dividing an original hard disk into X groups equally; selecting m virtual hard disks from each hard disk in sequence to form one original hard disk; selecting m virtual hard disks from each added hard disk and inserting the m virtual hard disks into the virtual hard disk group; moving, in the virtual hard disk group, data in virtual hard disks of the original hard disk to the virtual hard disks of the added hard disk. The present invention is applied to capacity expansion of a hard disk.

Abstract translation: 本发明的实施例提供一种容量扩展方法和装置，以减少硬盘的容量扩展所需的时间。 该方法具体包括：在独立磁盘RAID系统的分布式冗余阵列中，将每个硬盘分成相同大小的虚拟硬盘; 将原始硬盘平均分为X组; 从每个硬盘依次选择m个虚拟硬盘，形成一个原始硬盘; 从每个添加的硬盘中选择m个虚拟硬盘，并将m个虚拟硬盘插入虚拟硬盘组; 在虚拟硬盘组中将原始硬盘的虚拟硬盘中的数据移动到添加的硬盘的虚拟硬盘。 本发明适用于硬盘的容量扩展。