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Storage architecture creating method, storage access method and storage system

A storage architecture and storage system technology, which is applied in the field of storage system and storage architecture creation, can solve the problems of large amount of metadata data, incompatibility with traditional storage systems, complex management, etc., to achieve simple management, easy configuration, space reduction and The effect of visit frequency

Inactive Publication Date: 2016-07-27
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main technical problem to be solved by the present invention is to provide a method for creating a storage architecture, a storage access method, and a storage system, which can solve the problems of excessive metadata, complex management, and incompatibility with traditional virtualized storage systems. Technical issues with storage systems

Method used

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  • Storage architecture creating method, storage access method and storage system
  • Storage architecture creating method, storage access method and storage system
  • Storage architecture creating method, storage access method and storage system

Examples

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Embodiment 1

[0046] Considering the existing virtualized storage system has a large amount of metadata data, complex management and technical problems that are not compatible with traditional storage based on RAID arrays, this embodiment provides a storage method, such as figure 1 As shown, include the following steps in:

[0047] Step 101: Create a logical disk based on the physical disk, and establish a mapping relationship between the logical disk and the physical disk.

[0048] Specifically, first select a physical disk, for example, select multiple physical disks; then create a logical disk (LogicDisk) corresponding to the physical disk; map the logical disk and the physical disk, and establish a mapping relationship between the logical disk and the physical disk, specifically, A mapping relationship table from logical disks to physical disks can be established. In storage access, the physical disk corresponding to the logical disk can be found out according to the mapping relationsh...

Embodiment 2

[0100] Such as Figure 6 As shown, this embodiment provides a storage access method based on figure 1 The storage architecture created by the shown method includes the following steps:

[0101] Step 601: After the volume receives the access instruction, send the access instruction to the corresponding virtual disk according to the mapping relationship between the volume and the virtual disk.

[0102] Preferably, the access command in this embodiment includes an I / O command.

[0103] Preferably, when the logical disk in the storage architecture is composed of blocks on at least one physical disk, and the mapping relationship between the logical disk and the physical disk includes the mapping relationship between the logical disk and the blocks on the physical disk; in this step, according to the determined logical disk to The process of sending the access instruction to the corresponding physical disk for access according to the mapping relationship of the physical disk may i...

Embodiment 3

[0118] Such as Figure 8 As shown, this embodiment provides a storage system, which is based on figure 1 The storage architecture created by the method includes: a volume processing module and a virtual disk processing module;

[0119] The volume processing module is configured to send the access instruction to the corresponding virtual disk according to the mapping relationship between the volume and the virtual disk after the volume receives the access instruction;

[0120] The virtual disk processing module is configured to perform RAID calculation to determine the corresponding logical disk after the virtual disk receives the access instruction, and send the access instruction to the corresponding logical disk according to the determined mapping relationship between the logical disk and the physical disk. access the physical disk.

[0121] The storage system of this embodiment can enable the traditional storage system based on RAID array to be upgraded to a virtualized p...

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PUM

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Abstract

The present invention discloses a storage architecture creating method, a storage access method and a storage system. The storage architecture creating method disclosed by the present invention specifically comprises: creating a logic disks according to a physical disk, and establishing a mapping relationship of logic disks to physical disks; selecting a logic disk to create a virtual disk, wherein the virtual disk comprises at least one logic disk; creating a storage pool according to the virtual disk, wherein the storage pool comprises at least one virtual disk; and creating a volume, and establishing a mapping relationship of volumes to virtual disks. The creating method disclosed by the present invention is capable of solving the technical problem that metadata existing in the existing virtualization storage system is excessively large in data volume, complex to be managed, and can not be compatible with the conventional storage system.

Description

technical field [0001] The invention relates to the field of computer storage, in particular to a method for creating a storage architecture, a storage access method and a storage system. Background technique [0002] With the continuous expansion of user data, the storage system manages more and more hard disks. The traditional RAID array is used to configure storage, and the configuration process is cumbersome. After the initial configuration is completed, later expansion and business adjustment are relatively big challenges for traditional RAID arrays. The virtualized pool simplifies the user's configuration and can be flexibly expanded, greatly reducing the user's maintenance workload. [0003] The growth of hard disk access rate is far behind the growth of capacity. In the 21 years from 1991 to 2012, the capacity of HDD hard disk increased from 40MB to 4TB, an increase of 100,000 times, while the speed increased from 0.7MB / s to 128MB / s. Only increased by 182 times. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06G06F12/08
CPCG06F3/06
Inventor 刘卯银
Owner ZTE CORP
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