Huawei Technologies Co., Limited

Other

Siwei Luo

Wenlin Cui

Feng Wang

Yi He

Keji Huang

Lei Zhang

Tao Huang

Peng Zhang

Xin Fang

Jing Liu

Chen Wang

Meng Gao

Ren Ren

Zhong Qin

Tao Cheng

Dong Qiu

Rui Qian

Xulin Gu

Guan Huang

Hanfa Zhong

Kun Ou

The present disclosure relates to a method applied to a memory controller (MC). In an example, the MC is disposed in a computer. The computer further includes at least one central processing unit core and at least one memory. The MC receives a cyclic redundancy check (CRC) processing instruction sent by the at least one central processing unit core. The MC obtains target data from the at least one memory based on the CRC processing instruction. The MC performs calculation on the target data to obtain a CRC value of the target data. The MC sends the CRC value to the at least one central processing unit core.

Data check method and related device

A storage system, a storage node, and a data storage method are provided. The storage system includes a plurality of computing nodes and a plurality of storage nodes, and each storage node includes a hard disk. A client writes to-be-stored data into a memory of a first computing node, and writes a log of the to-be-stored data into storage space corresponding to a first access address of a first storage node. This implements storage of the to-be-stored data.

Data storage method to shorten a data access path

This application discloses a storage system, a data processing method, an apparatus, a node, and a storage medium, and pertains to the field of data storage technologies. In the method, a client determines an address that is in a storage unit and that is used to store to-be-written data, and sends the to-be-written data to a first storage device that is in a storage node and that is corresponding to the storage unit, so that the first storage device stores the to-be-written data while a CPU of the storage node does not need to determine a hard disk LBA corresponding to virtual address space, and a hard disk does not need to determine a corresponding physical address based on the hard disk LBA.

Direct write strategy for a storage system, data processing method, apparatus, node, and storage medium

A metadata processing method includes a network interface card in a storage device that receives an input/output (I/O) request, where the I/O request includes a data read request or a data write request; the network interface card executes a metadata processing task corresponding to the I/O request; and when determining that the metadata processing task fails to be executed, the network interface card requests a CPU in the storage device to execute the metadata processing task.

Metadata processing method to improve data read/write efficiency of a storage device

A storage system includes multiple storage nodes. Each storage node includes a first storage device of a first type and a second storage device of a second type, and a performance level of the first storage device is higher than the second storage device. The globe cache includes a first tier comprising the first storage device in each storage node, and a second tier comprising the second storage device in each storage node. The first tier is for storing data with a high access frequency, and the second tier is for storing data with a low access frequency. The management node monitors an access frequency of target data stored in the first tier. When the access frequency of the target data is lower than a threshold, the management node instructs the first storage node to migrate the target data from the first tier to the second tier.

Storage system, memory management method, and management node

Booster fan

A key-value (KV) storage method and apparatus, the method including receiving a write request, where the write request is associated with writing a first key and a first value, storing the first key in a first memory chip of a solid state drive (SSD), and storing the first value in a second memory chip of the SSD, where an erase count of the first memory chip is less than an erase count of the second memory chip, and creating a mapping relationship between the first key, a physical address of the first key, and a physical address of the first value, where the physical address of the first key indicates that the first key is stored in storage space of the first memory chip, and where the physical address of the first value indicates that the first value is stored in storage space of the second memory chip.

Key-value KV storage method and apparatus, and storage device

A storage system includes a management node and multiple storage nodes. Each storage node includes a first storage device of a first type (e.g., DRAM) and a second storage device of a second type (e.g., SCM), and a performance level of the first storage device is higher than the second storage device. The management node creates a globe cache including a first tier comprising the first storage device in each storage node, and a second tier comprising the second storage device in each storage node. The first tier is for storing data with a high access frequency, and the second tier is for storing data with a low access frequency. The management node monitors an access frequency of target data stored in the first tier. When the access frequency of the target data is lower than a threshold, the management node instructs the first storage node to migrate the target data from the first tier to the second tier of the globe cache.

A data processing method includes obtaining a plurality of data blocks, determining a first data block and a second data block from the data blocks, where the first data block has a first hash value, and the second data block has a second hash value, where the first hash value is obtained by performing calculation on the first data block based on a hash algorithm and the second hash value is obtained by performing calculation on the second data block based on the hash algorithm, and combining and compressing the first data block and the second data block based on a degree of similarity of the first data block and the second data block.

Data compression processing method and apparatus, and computer-readable storage medium

In a method disclosed for writing data, a device receives data, divides the data into one or more data fragments, obtains a first parity fragment based on the one or more data fragments and a second parity fragment of a written data fragment in a stripe distributed across a plurality of nodes, stores the one or more data fragments and the first parity fragment in the stripe.

Growing community of inventors

Chengdu, China

Siwei Luo