公开(公告)号：US20200294548A1

公开(公告)日：2020-09-17

申请号：US16890642

申请日：2020-06-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qingchao LUO ,  Lei ZHANG

IPC: G11B20/12 ,  G06F3/06 ,  G06F12/0868 ,  G11B5/012

Abstract: A method for a server to access a shingled magnetic recording (SMR) disk includes: receiving, by the server, a data operation request, where the data operation request includes address information of target data; determining, according to the address information, a target storage zone in the SMR disk and that corresponds to the target data; determining that there is write pointer information of the target storage zone in a cache, and obtaining the write pointer information from the cache, where the write pointer information is address information of latest stored data in the target storage zone; generating a data operation instruction according to the write pointer information and the address information of the target data, where the data operation instruction is used to perform an operation on the target data; and sending the data operation instruction to the SMR disk.

公开(公告)号：US20180366158A1

公开(公告)日：2018-12-20

申请号：US16114412

申请日：2018-08-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qingchao LUO ,  Lei ZHANG

IPC: G11B20/12 ,  G11B5/012 ,  G06F12/0868 ,  G06F3/06

CPC classification number: G11B20/1217 ,  G06F3/0608 ,  G06F3/061 ,  G06F3/0638 ,  G06F3/0656 ,  G06F3/0676 ,  G06F12/0868 ,  G11B5/012 ,  G11B2020/1238

Abstract: A method for accessing a shingled magnetic recording (SMR) disk is provided. The method includes: receiving, by the server, a data operation request, where the data operation request includes address information of target data; determining, according to the address information, a target storage zone in the SMR disk that corresponds to the target data; determining that there is write pointer information of the target storage zone in a cache, and obtaining the write pointer information from the cache, where the write pointer information is address information of latest stored data in the target storage zone; generating a data operation instruction according to the write pointer information and the address information of the target data, where the data operation instruction is used to perform an operation on the target data; and sending the data operation instruction to the SMR disk. Embodiments of the present disclosure are applied for a server to access an SMR disk.