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公开(公告)号：US20180321874A1
公开(公告)日：2018-11-08
申请号：US15585499
申请日：2017-05-03
Applicant: Alibaba Group Holding Limited
Inventor： Shu Li , Xiaowei Jiang , Fei Liu
CPC classification number: G06F3/0659 , G06F3/0616 , G06F3/064 , G06F11/1068 , G11C29/52
Abstract: One or more write requests which include a plurality of logical data chunks are received. The plurality of logical data chunks are distributed to a plurality of physical pages on Flash such that data from different logical data chunks are stored in different ones of the plurality of physical pages, wherein a logical data chunk is smaller in size than a physical page.
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2.发明授权公开(公告)号：US10908960B2
公开(公告)日：2021-02-02
申请号：US16385955
申请日：2019-04-16
Applicant: Alibaba Group Holding Limited
Abstract: Embodiments described herein provide a storage management system. During operation, the system receives information indicating sets of pending load of a plurality of storage devices from one or more storage nodes of a distributed storage system. The set of pending load of a respective storage device includes a set of load from host operations and a set of load from background operations on the storage device. The system can receive a request for a target resource associated with a disk operation from a client node of the distributed storage system. The system then selects, from the plurality of storage devices, a storage device with the smallest set of pending load based on the sets of pending load as the target resource and sends the target resource to the client node.
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公开(公告)号：US10445022B1
公开(公告)日：2019-10-15
申请号：US15963386
申请日：2018-04-26
Applicant: Alibaba Group Holding Limited
Abstract: The disclosed embodiments are directed to improvements in log-structured merge (LSM) tree databases. In one embodiment, a method is disclosed comprising receiving data to be written to a log-structured merge (LSM) tree, the data including a key and value; determining that an in-memory buffer lacks capacity to store the data to be written; compacting key-ranges stored in at least one level of the LSM tree stored in an object storage device (OSD), each of the key-ranges associated with a respective object identifier; generating a key range object, the key range object including object identifiers associated with a subset of the key-ranges; erasing physical blocks corresponding to each of the object identifiers included in the key range object; and writing the key range object to at least one physical block of the OSD.
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Patent Agency Ranking
公开(公告)号：US11016932B2
公开(公告)日：2021-05-25
申请号：US15711409
申请日：2017-09-21
Applicant: Alibaba Group Holding Limited
IPC: G06F16/13 , G06F16/16 , G06F16/188
Abstract: Systems and methods for providing key-value based filesystem operations are disclosed. In one embodiment, the method comprises receiving at least one file operation from an application, the file operation including a file path and a requested operation; generating a key-value operation based on the file operation, the key-value operation including a key including the file path; executing the key-value operation at a key-value storage engine; receiving, from the key-value storage engine, a result of the key-value operation; generating a result value based on the result of the key-value operation; and returning the result value to the application.
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公开(公告)号：US11599377B2
公开(公告)日：2023-03-07
申请号：US16995691
申请日：2020-08-17
Applicant: ALIBABA GROUP HOLDING LIMITED
Abstract: Embodiments of the disclosure provide systems and methods accessing a storage device of a host machine. The method can include: receiving, via a first guest flash translation layer (FTL) instance, a first request for accessing the storage device from a first virtual machine running on a host machine, wherein the first request comprises a first physical address of the storage device; transmitting, via the first FTL instance, the first request to a host FTL driver; converting, via the host FTL driver, the first request into a first hardware command; transmitting, via the host FTL driver, the first hardware command to the storage device; and executing, via the solid state drive, the first hardware command.
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6.发明申请公开(公告)号：US20200334085A1
公开(公告)日：2020-10-22
申请号：US16385955
申请日：2019-04-16
Applicant: Alibaba Group Holding Limited
Abstract: Embodiments described herein provide a storage management system. During operation, the system receives information indicating sets of pending load of a plurality of storage devices from one or more storage nodes of a distributed storage system. The set of pending load of a respective storage device includes a set of load from host operations and a set of load from background operations on the storage device. The system can receive a request for a target resource associated with a disk operation from a client node of the distributed storage system. The system then selects, from the plurality of storage devices, a storage device with the smallest set of pending load based on the sets of pending load as the target resource and sends the target resource to the client node.
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公开(公告)号：US11816043B2
公开(公告)日：2023-11-14
申请号：US16964134
申请日：2018-06-25
Applicant: Alibaba Group Holding Limited
IPC: G06F13/16
CPC classification number: G06F13/161
Abstract: One embodiment facilitates measurement of a performance of a storage device. During operation, the system determines a normalized cost for an I/O request, wherein the normalized cost is independent of an access pattern and a type of the I/O request, wherein the normalized cost is indicated by a first number of virtual I/O operations consumed by the I/O request, and wherein a virtual I/O operation is used as a logical unit of cost associated with physical I/O operations. The system identifies a performance metric for the storage device by calculating a second number of virtual I/O operations per second which can be executed by the storage device. The system allocates incoming I/O requests to the storage device based on the performance metric, e.g., to satisfy a Quality of Service requirement, thereby causing an enhanced measurement of the performance of the storage device.
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公开(公告)号：US20210365390A1
公开(公告)日：2021-11-25
申请号：US16964134
申请日：2018-06-25
Applicant: Alibaba Group Holding Limited
IPC: G06F13/16
Abstract: One embodiment facilitates measurement of a performance of a storage device. During operation, the system determines a normalized cost for an I/O request, wherein the normalized cost is independent of an access pattern and a type of the I/O request, wherein the normalized cost is indicated by a first number of virtual I/O operations consumed by the I/O request, and wherein a virtual I/O operation is used as a logical unit of cost associated with physical I/O operations. The system identifies a performance metric for the storage device by calculating a second number of virtual I/O operations per second which can be executed by the storage device. The system allocates incoming I/O requests to the storage device based on the performance metric, e.g., to satisfy a Quality of Service requirement, thereby causing an enhanced measurement of the performance of the storage device.
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