Method for realizing high speed solid storage device based on storage region network

Abstract

This invention belongs to the SAN technology field of storage area network, the character is: it organizes the frontal server in SAN and excrescent DRAM memory resources in the object node server together to form a high speed virtual hardware TH-SSD, and gives users the same read-write connect of normal disk. This method uses virtual technology to project the primary dispersive memory resources to a continuous virtual disk address spaces, all the data requests to TH-SSD from front are the request to virtual disk. Factually, it expends the usable virtual disk spaces because of using expending memory technology of X86 platform; and it ensures date integrality in TH-SSD because of using the image strategy with double log and double copy; and it realizes the no gap supporting to FC SAN and IP SAN, and makes TH-SSD can good work not only in fiber-optic network, but also in Ethernet.

Description

technical field [0001] A method for realizing a high-speed solid-state storage device based on a storage area network belongs to the technical field of storage area network (SAN) storage. Background technique [0002] With the substantial improvement of CPU and main memory performance in recent years, the I / O capability of external memory has gradually become the real bottleneck of computer systems. Especially with the popularization of broadband Internet, the increase in the number of mobile terminals and the increasingly rich multimedia applications, more and more information systems use cluster systems for transaction processing, such as large-scale online transaction processing, high-performance computing, etc., such information The system puts forward higher and higher requirements for the storage system: larger storage capacity, faster storage speed, and more economical storage price. The emergence of storage area network (SAN) technology satisfies the capacity and pr...

AI Technical Summary

Problems solved by technology

[0003] In fact, due to the mechanical characteristics of the drive, the performance of the traditional disk in the SAN system has been unable to be greatly improved. For the current increasingly large-scale data bandwidth requirements, the expected performance improvement is very limited

Also, the seek and rotational delays of mechanical disks are the main causes of high system response times

Both seek and rotation delays lead to unstable disk performance and a sharp decrease in performance under the condition of a large number of concurrent requests

It shows that the number of I / O requests processed per second is unstable, and the average value is very low, which is far from meeting the requirements of some key applications.

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