时间同步在灾难备份系统中的实现

Implementation of Timing Synchronization in DisasterDataBackup Systems

针对灾难备份系统的精确时间同步要求和具体设备分布式网络结构特点,在精密时间同步标准PTP协议的时间同步过程基础上,提出了灾难备份系统时间同步软件实现技术方案,面向主校时服务器、子网校时服务器、子网设备分别设计主校时服务软件、子网校时服务软件和校时代理软件,并详细介绍灾难备份系统软件时间同步实现的工作流程。该方案通过系统测试,可使灾难备份系统达到精确的时间同步。

In the paper, a new implementation method for timing synchronization software in disaster data backup systems is proposed on the basis of PTP protocol, which is able to provide precision timing synchronization required by disaster recovery systems and is suitable for distributed network infrastructure. Specifically, it consists of three software modules, including master time correcting module, sub-network time correcting module and time correcting agent module running in maser time correcting server, sub-network time correcting server and sub-network devices respectively. Also, the workflow of disaster data backup system software is discussed. The experimental result shows that the method can provide precision timing synchronization.