公开(公告)号：US20150178004A1

公开(公告)日：2015-06-25

申请号：US14582509

申请日：2014-12-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yan XU ,  Yaping SUN ,  Huiqiang ZHOU

IPC: G06F3/06 ,  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, thereby saving storage space of a system, reducing maintenance costs, and improving reliability of the system.

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，从而节省系统的存储空间，降低维护成本，提高系统的可靠性。