Storage device, storage device array and network adapter

Abstract

The invention discloses a storage device which comprises a first memory unit, a storage unit and a master control unit. The first memory unit temporarily stores read-in data from an external device; the storage unit stores the read-in data; the master control unit locks a memory space in the first memory unit according to a memory locking command received from the external device and is used for storing the read-in data and storing the read-in data stored in the first memory unit into the storage unit, wherein locking means that the memory space is allocated to be used for storing the read-in data, and the space cannot be used for storing other data. The invention further discloses a network adapter. The network adapter comprises a second memory unit and a control unit. The second memory unit temporarily stores read-in data from a far-end device. The control unit comprises an information obtaining module, a memory locking module and a data distribution module, wherein the information obtaining module obtains address information of to-be-stored read-in data and the size of the read-in data from a data storage request of the read-in data, and a memory space is required to be locked, and the data distribution module sends the read-in data to the locked memory space.

Description

technical field [0001] The present invention relates to storage devices, storage device arrays and network adapters. Background technique [0002] At present, the interconnection between various parts of the computer cluster system, including the computing subsystem and the storage subsystem, is usually realized by using InfiniBand. InfiniBand is a unified high-speed interconnect architecture capable of handling I / O communications and communications between clustered servers. In communication with the storage subsystem, etc., InfiniBand RDMA (Remote Direct Memory Access, remote direct memory access) technology is used to obtain better performance. InfiniBand RDMA technology allows the remote end to directly read the local registered memory space without expanding storage, interfering with the CPU (Central Processing Unit, central processing unit) or calling the OS (Operating System, operating system) kernel, so as to reduce redundant data transmission resources and delay o...

AI Technical Summary

Problems solved by technology

However, the optimizations they perform are all for specific applications such as SSD internals or databases, and do not combine the current storage subsystems such as cluster servers and their high-speed connections to optimize storage performance.

Therefore, directly transplanting existing technologies to IBA (InfiniBand Architecture, InfiniBand Architecture) will not better improve storage performance

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