Intelligent network disc storage system and its realizing method

Abstract

The present invention provides a network disk memory system and implementation method. Said System is composed of two or more disk subsystems directly connected with network, wherein said network disk memory system set with fixed network address, said disk subsystem having different network sub-address and set with same file routing list. Each disk subsystem is directly connected with network, providing shortest I / O route for user's data file accessing, number of subsystems consisting of one group memory system, providing virtualized mass storage system to user.

Description

technical field [0001] The invention belongs to the technical field of computer storage, and in particular relates to a disk storage technology that can provide massive storage space and is applied on the network. Background technique [0002] With the rapid development of Internet technology, the amount of data information has grown explosively, and the demand for Internet storage capacity is almost doubling every three months. Therefore, the endless information resources on the Internet urgently require a mass storage system in the form of a network structure to store large-capacity information. Facing this urgent demand, the existing technology has been challenged unprecedentedly. Traditional storage systems of disk drives and CD drives, even large-capacity storage systems such as disk arrays (RAID), CD arrays, and high-speed tape library systems, etc., are unable to improve storage capacity, availability, high speed, scalability, data backup, a...

AI Technical Summary

Problems solved by technology

[0003] 1. Security issues: There are basically no security measures in the architecture of the three types of memory, the system security is poor, and it is easy to be attacked; security issues cannot be guaranteed

[0004] 2. High availability and disaster recovery issues: DAS, like NAS structure, depends on the reliability of the storage subsystem. If the storage subsystem fails, the client cannot access the data

Although the SAN structure can realize many-to-many connections between multiple servers and storage devices, allowing different servers to access through different paths, thereby improving the high availability of the system; but SAN requires a dedicated tape library for disaster recovery processing , needs to build a dedicated FC network, which is a high-cost disaster recovery solution

[0005] 3. Data backup problem: In the DAS structure, data backup can only be local, and data backup cannot be performed across systems

Data backup on the NAS device will affect the client / server, because the server device is also a node in the LAN and also requires bandwidth, which will affect the communication between the client / server

Although SAN allows distributed servers to access centralized storage subsystems, SAN still needs to consider the structure of various storage systems when backing up data.

[0006] 4. Network management and scalability issues: DAS structure is a resource-exclusive memory system structure, and the capacity of (disk) memory is not easy to expand

Therefore, there are still memory I / O problems in these three structures

[0009] (2), load balancing problem of network storage: in the above three storage structures (DAS, NAS and SAN), the file server seldom considers the load balancing problem on each disk when managing the storage (although now There are NAS servers based on Linux clusters, but it doesn't take into account the load on each specific disk)

Therefore, it often occurs that the load of some disk storages in the storage system is very heavy, while the load of other disk storages is very light, which not only directly affects the I / O processing speed of the storage, but also affects the overall performance Affects the use efficiency and performance improvement of the memory system

[0010] (3) The autonomy of the network storage itself: no matter in the DAS, NAS or SAN structure, each disk storage in the storage subsystem is a passive controlled object and has never had autonomy

[0013] Generally speaking, among the three basic forms of memory architecture currently available, the security of network storage, the reliability of network storage, the data backup of network storage, the management and scalability of network storage, and the There are defects in I / O performance, load balance of network storage, and autonomy of network storage itself. Although there are some improvement methods at present, they cannot solve the problem fundamentally. These problems directly affect the development of network storage technology. Unfavorable factors for development are technical obstacles that will be encountered in the future and must be overcome

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