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Virtual memory method and apparatus

A technology of virtual storage and equipment, applied in the field of network storage, can solve the problem of not being able to shield the server host, and achieve the effect of ensuring security

Active Publication Date: 2009-07-08
CHENGDU HUAWEI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, existing storage virtualization devices cannot shield the differences in server hosts and the differences in volume management methods of different system platforms

Method used

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  • Virtual memory method and apparatus

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] The embodiment of the present invention provides a virtual storage method, which can shield the differences between different hosts and different storage arrays, and can protect the user's original data: without changing the content of the original data, without changing the storage location of the original data; When the virtualization device is pulled out from the existing storage network, the original network form and data storage form c...

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Abstract

The embodiment of the invention discloses a method and a device for the virtual memory. The method comprises the following steps: acquiring a volume managing manner of a logic unit LUN of a memory array, and recording the volume managing manner in splicing data; constructing a virtual LUN according to the LUN and the splicing data, and mapping the virtual LUN onto to the host for being read, written and accessed; modifying the destination address of the I / O data packet according to the splicing data after the receipt of an input I / output O data packet delivered by the host, delivering the I / O data packet to the virtual LUN, and delivering the I / O data packet delivered to the virtual LUN to the memory array according to the splicing data. In addition, the position for the delivery of I / O data packet to the memory array is the same as the destination address of the I / O data packet, which is not modified. The embodiment of the invention realizes the memory integration, and shields the difference caused by different hosts and volume managing manners coming from different system platforms.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of network storage, in particular to a virtual storage method and device. Background technique [0002] With the increasing demand for data storage, the storage method has developed from the built-in hard disk of the server host to a dedicated storage device, that is, network storage. The mainstream of network storage is the storage architecture of SAN (Storage Attach Network, network-attached storage). The storage device (storage disk array) divides LUNs (Logical Units, logical units) according to needs and maps them to the server host for use. [0003] Due to differences in host architectures, operating systems, and no uniform standards for storage devices, it is very complicated to re-plan the logical environment of existing storage devices after a period of use: on the one hand, it is necessary to ensure less Interrupt or even not interrupt the business of existing production d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/0635G06F3/0689G06F3/0665G06F3/0605
Inventor 李熠斌
Owner CHENGDU HUAWEI TECH
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