RAID system and method of network based on dynamic mode

A dynamic mode and network technology, applied in the field of network information, can solve problems such as low availability, low resource utilization, and poor performance

Active Publication Date: 2009-09-16
INST OF COMPUTING TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and solve the problems of low resource utilization, poor performance and low availability in the current network storage system, especially the network storage system structure that adopts the combination of in-band and out-of-band management modes , providing a network RAID system and method based on dynamic mode

Method used

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  • RAID system and method of network based on dynamic mode
  • RAID system and method of network based on dynamic mode
  • RAID system and method of network based on dynamic mode

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Embodiment Construction

[0037] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0038] Such as figure 2 Shown, network RAID system of the present invention comprises:

[0039] Virtual storage device: is the unit that the network RAID system provides data storage space service to the outside, and its size is counted in blocks, and the virtual storage device also represents the general term of multiple functional components that provide a data storage space service in the network RAID system at the same time, in the present invention It can also be called a network RAID device.

[0040] Virtual storage device interface: figure 2 In 1, it is the interface of the virtual storage device that the network RAID system provides for storage space data access;

[0041] Physical storage device: figure 2 In 4-1...4-m, it is the unit of physical resources that the physical storage system provides to store data externally, and its siz...

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Abstract

The invention discloses a network RAID system and method based on a dynamic mode. The system includes: a virtual storage device, at least one virtual storage device interface, a virtual storage management console, a physical storage device, a block mapping table, a block mapping cache table, a network virtual storage device, and a device mapping table. The method includes: 1) creating a virtual storage device; 2) creating a virtual storage device interface; 3) reading and writing a virtual storage device; 4) modifying a block mapping cache table; 5) modifying a block mapping table; 6) modifying a device mapping table; 7 ) delete the virtual storage device interface; 8) delete the virtual storage device. The invention realizes the dynamic conversion between the in-band mode and the out-of-band mode, and effectively solves the problem of low utilization rate of storage resources.

Description

technical field [0001] The present invention relates to the field of network information technology, in particular to a network disk array (Redundant Array of Inexpensive Disk, RAID for short) system and method based on a dynamic mode. Background technique [0002] In a network storage system, a disk array (RAID) is currently a widely used network storage device. Due to its simple management and other advantages, disk arrays have become the constituent nodes of various complex network storage systems. A common RAID consists of one or more local disks, one or more application servers are connected to the disk array through a high-speed Internet, and the logical devices derived from the disk array appear as local devices of the application server. [0003] As shown in Figure 1, traditional network storage devices either adopt an in-band management mode or an out-of-band management mode, both of which have advantages and disadvantages. Figure 1(b) shows a schematic diagram of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06
Inventor 卜庆忠许鲁
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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