公开(公告)号：US20170364300A1

公开(公告)日：2017-12-21

申请号：US15679174

申请日：2017-08-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Liming Wu ,  Bin Huang ,  Wan Zhao

IPC: G06F3/06 ,  G06F12/02

CPC classification number: G06F3/0641 ,  G06F3/0608 ,  G06F3/0616 ,  G06F3/0679 ,  G06F12/02 ,  G06F12/0246 ,  G06F2212/1036 ,  G06F2212/7205

Abstract: In a method for controlling data stored in a Solid State Disk (SSD) of a data storage system, a storage controller obtains stability information of a data segment. The stability information includes a reference count of the data segment and a length of a period of time the data segment is stored in the SSD. The storage controller identifies a stability level of the data segment according to the stability information, and sends the stability level of the data segment to the SSD. The SSD moves the data segment to a storage block that corresponds to the stability level. Thereby, the SSD can store data segments having a same stability level together.

公开(公告)号：US09772790B2

公开(公告)日：2017-09-26

申请号：US15085831

申请日：2016-03-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Liming Wu ,  Bin Huang ,  Wan Zhao

IPC: G06F12/02 ,  G06F3/06

CPC classification number: G06F3/0641 ,  G06F3/0608 ,  G06F3/0616 ,  G06F3/0679 ,  G06F12/02 ,  G06F12/0246 ,  G06F2212/1036 ,  G06F2212/7205

Abstract: In a method for controlling data stored in an Solid State Disk (SSD) of a data de-duplication system, a storage controller obtains stability information of a data block. The stability information comprises a reference count of the data block and a length of a period of time when the data block is stored in the SSD. The storage controller identifies a stability level of the data block according to the stability information, and sends the stability level of the data block to the SSD. The SSD moves the data block to a target block which corresponds to the stability level. Thereby, the SSD can store data blocks having a same stability level together.