公开(公告)号：US20150193154A1

公开(公告)日：2015-07-09

申请号：US14662928

申请日：2015-03-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tao Gong ,  Kun Han ,  Liming Wu

IPC: G06F3/06

CPC classification number: G06F3/0616 ,  G06F3/0608 ,  G06F3/0647 ,  G06F3/0688 ,  G06F3/0689

Abstract: A method for extending life of a storage system, wherein a storage controller determines a source solid-state disk (SSD) in a disk group with a capacity usage ratio greater than an average capacity usage ratio of the disk group. The capacity usage ratio of the source SSD is a ratio of a used capacity of the source SSD to an available capacity of the source SSD. The storage controller selects at least one destination SSD in the disk group with a capacity usage ratio less than the average capacity usage ratio of the disk group. And then the storage controller calculates an amount of data to be migrated from the source SSD, based on the capacity usage ratio of the source SSD and the average capacity usage ratio. At last, the storage controller migrates the data to be migrated from the source SSD to the one or more destination SSDs.

Abstract translation: 一种用于延长存储系统寿命的方法，其中存储控制器确定磁盘组中的源固态磁盘（SSD），其具有大于所述磁盘组的平均容量使用率的容量使用率。 源SSD的容量使用率是源SSD的使用容量与源SSD的可用容量的比率。 存储控制器选择磁盘组中的至少一个目标SSD，其容量使用率小于磁盘组的平均容量使用率。 然后存储控制器基于源SSD的容量利用率和平均容量使用率来计算要从源SSD迁移的数据量。 最后，存储控制器将要迁移的数据从源SSD迁移到一个或多个目标SSD。

公开(公告)号：US09733844B2

公开(公告)日：2017-08-15

申请号：US14662928

申请日：2015-03-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tao Gong ,  Kun Han ,  Liming Wu

IPC: G06F12/00 ,  G06F13/00 ,  G06F13/28 ,  G06F3/06

CPC classification number: G06F3/0616 ,  G06F3/0608 ,  G06F3/0647 ,  G06F3/0688 ,  G06F3/0689

Abstract: A method for extending life of a storage system, wherein a storage controller determines a source solid-state disk (SSD) in a disk group with a capacity usage ratio greater than an average capacity usage ratio of the disk group. The capacity usage ratio of the source SSD is a ratio of a used capacity of the source SSD to an available capacity of the source SSD. The storage controller selects at least one destination SSD in the disk group with a capacity usage ratio less than the average capacity usage ratio of the disk group. And then the storage controller calculates an amount of data to be migrated from the source SSD, based on the capacity usage ratio of the source SSD and the average capacity usage ratio. At last, the storage controller migrates the data to be migrated from the source SSD to the one or more destination SSDs.