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公开(公告)号：US11264055B2
公开(公告)日：2022-03-01
申请号：US17226588
申请日：2021-04-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Guoxia Liu , Liming Wu
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 by 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 by 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.
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公开(公告)号：US11954332B2
公开(公告)日：2024-04-09
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
CPC classification number: G06F3/0611 , G06F3/064 , G06F3/0659 , G06F3/0673
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.
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公开(公告)号：US11322179B2
公开(公告)日：2022-05-03
申请号：US17167231
申请日：2021-02-04
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Guoxia Liu , Liming Wu
Abstract: A storage array includes a plurality of hard disks, 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 by 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 by 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.
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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.
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.
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公开(公告)号：US20220108724A1
公开(公告)日：2022-04-07
申请号：US17549094
申请日：2021-12-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Guoxia Liu , Liming Wu
IPC: 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.
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Patent Agency Ranking
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.
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。
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公开(公告)号：US11775201B2
公开(公告)日：2023-10-03
申请号：US17266901
申请日：2018-08-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Liming Wu , Kui Wang , Rémi Robert Michel Denis-Courmont , Igor Stoppa
CPC classification number: G06F3/0655 , G06F3/0604 , G06F3/064 , G06F3/0673 , G06F9/45558 , G06F12/023 , G06F12/1491 , G06F21/53 , G06F2221/033
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.
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公开(公告)号：US20210233569A1
公开(公告)日：2021-07-29
申请号：US17226588
申请日：2021-04-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Guoxia Liu , Liming Wu
IPC: 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 by 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 by 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.
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公开(公告)号：US20210158841A1
公开(公告)日：2021-05-27
申请号：US17167231
申请日：2021-02-04
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Guoxia Liu , Liming Wu
IPC: G11B20/18
Abstract: A storage array includes a plurality of hard disks, 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 by 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 by 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.
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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.
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.
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