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Method and system for duplicating remote data based on embedded integrated virtual tape libraries

A virtual tape library and remote data technology, applied in the field of remote data replication, can solve the problems of reducing remote replication performance and consuming host resources

Inactive Publication Date: 2010-06-16
无锡北方数据计算股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This consumes host resources and reduces the performance of remote replication

Method used

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  • Method and system for duplicating remote data based on embedded integrated virtual tape libraries
  • Method and system for duplicating remote data based on embedded integrated virtual tape libraries
  • Method and system for duplicating remote data based on embedded integrated virtual tape libraries

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Embodiment Construction

[0028] In order to enable those skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the present invention will be further described in detail below in conjunction with the drawings and implementations.

[0029] First, refer to figure 1 , is a system structure diagram of the present invention, including:

[0030] The backup host is connected to the virtual tape library 101, the interface supports SCSI, optical fiber, iSCSI, and the replication unit 102 uses the POSIX (Portable Operating System Interface of Unix, Portable Operating System Interface) interface to read and write virtual tapes, and is connected through the TCP / IP network 103.

[0031] refer to figure 2 , is the process steps of data replication in the present invention:

[0032] Step 201, according to the time scheduling strategy or manually create the client work process, start the copy task;

[0033] Step 202, the client initiates a connection ...

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Abstract

The invention discloses a method and a system for duplicating remote data based on embedded integrated virtual tape libraries, which realize remote data duplication between the embedded integrated virtual tape libraries through a software module of an embedded integrated virtual tape library system. The software module comprises two sub-modules consisting of a server program and a client program, wherein the server program can abstract the embedded integrated virtual tape libraries to form a data source which only supplies data, and the client program requests a server for the data appointed by a user and writes the requested data in a local disk. The embedded integrated virtual tape library comprises the client program and the server program at the same time, and can be the client or the server.

Description

technical field [0001] The invention relates to the field of computer storage, in particular to a remote data duplication method and system based on an embedded integrated virtual tape library. Background technique [0002] Remote copying technology refers to copying local data to remote places through remote copying software. Remote copying technology enables remote copying to always match the content that the local machine requires to be copied. The computer storage industry has used tape libraries to achieve remote data replication for many years. Now the latest tape technology has been able to achieve extremely high backup / restore speeds, such as LTO3 (80MB / s) and IBM TS1120 (100MB / s) tape drives , their individual tape drive speeds exceed or approach the actual throughput of many disk arrays. When a tape library is installed with multiple drives, its theoretical backup speed is quite amazing. For example, a tape library with 6 LTO3 drives can reach 480MB / s even in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L29/08
Inventor 张庆敏胡刚谢海威郑志文
Owner 无锡北方数据计算股份有限公司
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