Resource creation method and device

A resource and balancing algorithm technology, applied in the field of resource creation, can solve problems such as slow reconstruction speed, business impact, and heavy reconstruction pressure

Active Publication Date: 2016-01-13
ZHEJIANG UNIVIEW TECH CO LTD
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  • Description
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Problems solved by technology

[0007] Based on the above method, the number of PDs participating in the reconfiguration process is small, resulting in a greatly redu

Method used

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Embodiment Construction

[0029]Aiming at the problems existing in the prior art, an embodiment of the present invention proposes a resource creation method, which can be applied in a network architecture of block virtualization. In the network architecture of block virtualization, the storage pool provides resources to the upper layer. The storage pool includes multiple PDs, and each PD is divided into multiple VDs according to the specified size. Multiple VDs are formed according to the corresponding RAID policy. VDG, and provide resources to the upper layer. Furthermore, when the resources in the storage pool (that is, VD resources) are not enough to meet the needs of the upper-layer business, the storage pool can be expanded, that is, a new PD is added to the storage pool, and the new PD is cut into multiple according to the specified size. VD, the multiple VDs cut by the new PD are used to continue to provide resources to the upper layer to meet the needs of the upper layer business. On this basi...

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Abstract

The invention provides a resource creation method and device. A storage pool comprises K pieces of PD (Physical Disk) which are not dilated and M pieces of dilated PD. The method comprises the following steps: in a resource creation process, selecting multiple pieces of VD (Virtual Disk) used for creating resources from the K pieces of PD and the M pieces of PD, wherein the selected multiple pieces of VD are evenly distributed in the K pieces of PD and the M pieces of PD; and after resource creation is finished, carrying out equilibrium processing on the multiple pieces of VD in the K pieces of PD and the M pieces of PD to cause a use ratio of the K pieces of PD and a use ratio of the M pieces of PD to be kept at an effective range of an average use ratio. Through the technical scheme of the resource creation method and device, when any one piece of PD in the storage pool breaks down, a reconstruction process is triggered, at the time, the data of the failed PD is recovered on the basis of the data of all pieces of PD, an amount of the PD which participates in the reconstruction process is large, a reconstruction speed is greatly improved, reconstruction efficiency is not lowered by dilatation, the reconstruction pressure of the M pieces of dilated PD is lightened, and influence on business is reduced.

Description

technical field [0001] The present invention relates to the technical field of storage, in particular to a method and device for creating resources. Background technique [0002] In order to solve the problem of long reconstruction time, the traditional array construction method has gradually evolved into a block virtualization method, such as figure 1 As shown in , it is a schematic diagram of block virtualization architecture. Through block virtualization, resources are provided from the storage pool to the upper layer. The basic idea of ​​the block virtualization method is: add a specified number of PDs (Physical Disks, physical disks) to the storage pool, and cut the PDs into multiple VDs (VirtualDisks, virtual disks, or blocks) according to the specified size. The VD forms a VDG (VirtualDiskGroup, virtual disk group) according to the corresponding RAID (Redundant Arrays of Independent Disks, Redundant Array of Independent Disks) strategy, and provides resources to the ...

Claims

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Application Information

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IPC IPC(8): G06F12/109
Inventor 郭永强王丽红郭鹏洲卢洪棚谢菲
Owner ZHEJIANG UNIVIEW TECH CO LTD
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