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Whole-disk copying method based on ISCSI (Internet Small Computer System Interface) and storage system

A full-disk copy and hard disk technology, which is applied in the ISCSI-based full-disk copy method and storage system field, can solve the problems of increasing the burden on the IPSAN control server and high requirements for IPSAN control server equipment, and achieve the effect of avoiding copy delay and resource occupation

Active Publication Date: 2013-01-30
BEIJING FORTUNET INFORMATION & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the IPSAN control server needs to complete storage and forwarding between different iSCSI disks many times, resulting in replication delay and resource occupation; the burden on the IPSAN control server is increased, and the equipment requirements for the IPSAN control server are relatively high

Method used

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  • Whole-disk copying method based on ISCSI (Internet Small Computer System Interface) and storage system
  • Whole-disk copying method based on ISCSI (Internet Small Computer System Interface) and storage system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of full-disk duplication method based on ISCSI of the present invention comprises the following steps:

[0026] Step S100: The IPSAN control server generates a full-disk copy command cmd(N), and sends the copy command cmd(N, s) to each active ISCSI hard disk A(N, s) in the active ISCSI hard disk array A(N);

[0027]Wherein, the active ISCSI hard disk is an ISCSI hard disk that receives an IPSAN control server copy command; the active ISCSI hard disk array is a collection of multiple active ISCSI hard disks, and the active ISCSI hard disk array A(N) indicates that the active ISCSI hard disk array includes N active ISCSI hard disks; N active iSCSI hard disks are mirror images of each other (that is, the content of each active iSCSI hard disk is exactly the same), N is a natural number; Hard disk, s ∈ {0, 1, 2, ..., N-1}; the copy command cmd(N, s) indicates the copy command sent by the IPSAN control server to the active ISCSI hard disk A(N, s); the full-disk copy c...

Embodiment 2

[0097] A storage system based on ISCSI of the present invention, such as figure 1 as shown,

[0098] Including storage unit and backup unit;

[0099] Described storage unit comprises IPSAN control server, the first Ethernet switchboard and active ISCSI hard disk array A (N); Wherein, active ISCSI hard disk is the ISCSI hard disk that receives IPSAN control server copy command; Active ISCSI hard disk array is a plurality of active ISCSI hard disks The active ISCSI hard disk array A(N) means that the active ISCSI hard disk array includes N active ISCSI hard disks; the N active ISCSI hard disks are mirror images of each other (that is, the content of each active ISCSI hard disk is exactly the same), and N is a natural number; ISCSI hard disk A (N, s) represents the active ISCSI hard disk numbered s in the active ISCSI hard disk array A (N), s ∈ {0, 1, 2, ..., N-1}; copy command cmd (N, s) represents the replication command sent by the IPSAN control server to the active ISCSI ha...

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PUM

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Abstract

The invention provides a whole-disk copying method based on an ISCSI (Internet Small Computer System Interface) and a storage system. The whole-disk copying method comprises the following steps of: step S100: controlling a server to generate a whole-disk copying command cmd (N) by an IPSAN (Internet Protocol Storage Area Network), and sending the copying command cmd (N,s) to each driving ISCSI hard disk A (N,s) in an initiative ISCSI hard disk array A (N); and step 200: copying a set region to M driven ISCSI hard disks in a driven ISCSI hard disk array B (M) by each driving ISCSI hard disk A (N,s) according to the copying command cmd (N,s), wherein the setting regions of each driving ISCSI hard disk are different, and the setting regions of the N driving ISCSI hard disks A (N,s) are gathered into a whole disk. Each ISCSI hard disk is interconnected through an Ethernet switch and the adopted ISCIS hard disk has a data transmission and logic function so that the ISCIS hard disks can carry out port-to-port block-free communication through the Ethernet switch; the whole-disk copying of the data is realized under an instruction of an IPSAN control server; and the copying delaying and the resource occupation, which are caused by that the data is stored and transmitted by the IPSAN control server, are avoided.

Description

technical field [0001] The invention relates to a method for realizing full-disk duplication of an enterprise-level storage system based on an iSCSI disk, in particular to an iSCSI-based full-disk duplication method and a storage system. Background technique [0002] iSCSI is a network storage standard developed by IETF (Internet Engineering Task Force, Internet Engineering Task Force), the purpose is to use the IP protocol to connect storage devices together. By transmitting SCSI commands and data on the IP network, iSCSI promotes the transmission of data between the Internet and also facilitates the remote management of data. Due to its excellent data transmission capability, the iSCSI protocol is considered to be one of the key factors promoting the rapid development of the storage area network (Storage Area Network, referred to as SAN) market. Due to the wide application of IP networks, iSCSI can transmit data on LAN (Local Area Network, local area network), WAN (Wide A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 陈杰
Owner BEIJING FORTUNET INFORMATION & TECH
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