公开(公告)号：US11501800B2

公开(公告)日：2022-11-15

申请号：US17549094

申请日：2021-12-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Guoxia Liu ,  Liming Wu

IPC: G11B5/09 ,  G11B20/18

Abstract: A storage array includes a plurality of hard disks, where each of the hard disks is divided into a plurality of chunks, and a plurality of chunks of different hard disks form a chunk group using a redundancy algorithm. The storage array obtains fault information of a faulty area in a first hard disk, and determines a faulty chunk storing the lost data according to the fault information. The storage array recovers the data in the faulty chunk using another chunk in a chunk group to which the faulty chunk belongs and stores the recovered data in a recovered chunk. The recovered chunk is located in a second hard disk which is not a hard disk for forming the chunk group.

公开(公告)号：US11126706B2

公开(公告)日：2021-09-21

申请号：US16491319

申请日：2017-03-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sampo Sovio ,  Martti Takala ,  Valentin Manea ,  Parvez Shaik ,  Liming Wu

IPC: H04L29/06 ,  G06F21/44 ,  G06F21/12 ,  G06F21/57 ,  G06F21/60 ,  G06F21/74

Abstract: An apparatus including a processor and a memory configured to provide an SEE and an REE. The processor is configured to provide a client application configured to execute at a user privilege level and a hypervisor configured to execute at a hypervisor privilege level. The user privilege level is more restrictive than the hypervisor privilege level. The processor is further configured to provide a trusted application configured to execute within the SEE. The trusted application provides secure services to the client application. The processor is configured to send a request for secure services from the client application to the trusted application, send a measurement request to the hypervisor, generate within the hypervisor a measured value based on the client application, return the measured value to the trusted application, and determine whether the client application is authorized to access the secure services. The authorization determination is based on the measured value.

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.