公开(公告)号：US20180217935A1

公开(公告)日：2018-08-02

申请号：US15940521

申请日：2018-03-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jian ZHANG ,  Xiang ZHANG ,  Liming WU

IPC: G06F12/0871 ,  G06F12/0811 ,  G06F12/0808 ,  G06F3/06

CPC classification number: G06F12/0871 ,  G06F3/06 ,  G06F3/061 ,  G06F3/0652 ,  G06F3/0656 ,  G06F3/0659 ,  G06F3/0689 ,  G06F12/0808 ,  G06F12/0811 ,  G06F12/0866 ,  G06F12/0868 ,  G06F12/0897 ,  G06F12/128 ,  G06F2212/1024 ,  G06F2212/1041 ,  G06F2212/262 ,  G06F2212/312

Abstract: A method for reading data stored in a redundant array of independent disks (RAID). The RAID includes a RAID controller, a first cache, and a hard disk including a hard disk controller and a second cache. The method includes: receiving a read request, wherein the read request comprises an identifier of a to-be-read logical block; sending a first command to a hard disk controller of the hard disk when the first cache does not comprise data stored in the to-be-read logical block, wherein the first command is used to instruct the hard disk controller of the hard disk to return the data of the to-be-read logical block from the second cache of the hard disk; outputting the returned data, and caching the returned data in the first cache; and controlling the hard disk controller of the first hard disk to delete the returned data stored in the second cache.

公开(公告)号：US20210303173A1

公开(公告)日：2021-09-30

申请号：US17347041

申请日：2021-06-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Liming WU ,  Guoxia LIU ,  Jizhuo TANG ,  Po ZHANG

IPC: G06F3/06

Abstract: Embodiments of the present disclosure provide a data processing method, a controller, a storage device, and a storage system. The controller adds an execution time of an IO request to the IO request, and the execution time is used to instruct the storage device to complete the IO request before the execution time expires. The controller sends, to the storage device, the IO request to which the execution time is added. When receiving the IO request, the storage device can execute the IO request based on the execution time of the IO request.

公开(公告)号：US20200019695A1

公开(公告)日：2020-01-16

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: G06F21/44 ,  G06F21/57 ,  G06F21/74 ,  G06F21/60 ,  G06F21/12

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：US20160216915A1

公开(公告)日：2016-07-28

申请号：US15085831

申请日：2016-03-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Liming WU ,  Bin HUANG ,  Wan ZHAO

IPC: 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.

Abstract translation: 在用于控制存储在重复数据删除系统的固态盘（SSD）中的数据的方法中，存储控制器获得数据块的稳定性信息。 稳定性信息包括数据块的参考计数和数据块存储在SSD中的时间段的长度。 存储控制器根据稳定性信息识别数据块的稳定性级别，并将数据块的稳定性级别发送到SSD。 SSD将数据块移动到对应于稳定性级别的目标块。 因此，SSD可以将具有相同稳定性水平的数据块存储在一起。

公开(公告)号：US20210342092A1

公开(公告)日：2021-11-04

申请号：US17266901

申请日：2018-08-08

Applicant: WU Liming ,  Huawei Technologies Co., Ltd.

Inventor： Liming WU ,  Kui WANG ,  Rémi Robert Michel DENIS-COURMONT ,  Igor STOPPA

IPC: G06F3/06 ,  G06F9/455 ,  G06F21/53

Abstract: An apparatus that includes a processor and a memory. The processor and the memory are configured to provide a first software process configured to execute at a first privilege level; and a second software process configured to execute at a second privilege level, wherein the first privilege level is more restrictive than the second privilege level. The processor is configured to, initialize, at the first privilege level, a memory pool within the memory, allocate, at the first privilege level, a block of memory, send a request to write protect the block of memory to the second software process, and to write protect, at the second privilege level, the allocated block of memory.

公开(公告)号：US20180246664A1

公开(公告)日：2018-08-30

申请号：US15959276

申请日：2018-04-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Liming WU ,  Jianye YAO ,  Bin HUANG ,  Hongqiang CAO ,  Chao XU ,  Yibin LI

IPC: G06F3/06 ,  G06F12/02

CPC classification number: G06F3/0631 ,  G06F3/0604 ,  G06F3/0608 ,  G06F3/0626 ,  G06F3/0658 ,  G06F3/0679 ,  G06F12/023 ,  G06F12/0246 ,  G06F2212/401 ,  G06F2212/7204 ,  G11C7/1006 ,  G11C16/06 ,  G11C16/10

Abstract: Providing a data processing manner, wherein: a SSD compresses a data; the SSD storing the compressed data; the SSD sends a feedback information to a controller, wherein the feedback information indicates a remaining capacity of the SSD after the compressed data is stored.