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

A storage area network and solid-state storage device technology, applied in memory systems, memory address/allocation/relocation, instruments, etc., can solve problems such as long system response time, performance degradation, and failure to meet requirements

Inactive Publication Date: 2007-04-11
TSINGHUA UNIV
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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 o

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

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Embodiment Construction

[0032] The invention organizes the surplus DRAM memory resources on the front-end server and target server nodes in the storage area network to form a high-speed virtual disk device, and provides users with a read-write access interface consistent with ordinary disks. The high-speed storage device realized by the present invention uses virtual technology to convert the originally scattered memory space into a continuous virtual disk address space through mapping, and the data access requests to the high-speed storage device sent by the front-end application are all accesses to the virtual disk. The present invention realizes this kind of virtual disk on the front-end server and the target server in the storage area network, all realizes by SSD driver: the local SSD driver runs on the front-end server, is responsible for receiving and processing front-end application to local SSD The data access request of the target server; the target server-side SSD driver runs on the target s...

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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...

Claims

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Application Information

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IPC IPC(8): G06F9/46G06F12/08G06F15/173G06F3/06G06F12/0868
Inventor 舒继武薛巍于冰郑纬民
Owner TSINGHUA UNIV
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