VxVM环境下高可用性文件备份系统的实现

Realization of High Usability File Backup System in VxVM

随着信息存储需求的不断扩大,超大存储容量、高数据传输率以及高系统可用性等已经成为存储设备的基本要求。传统的数据备份机制需要首先停止业务,卸载文件系统,以保证备份数据的一致性,这样就无法实现在线备份。基于一个与日本某一大型公司的国际合作项目,结合VxVM(VERITAS Volume Manager)强大的磁盘管理功能实现了高可用性文件备份系统,它能够在业务不停止状态下实现数据的实时备份,大大提高了系统的可用性。

The basic requirements of storage devices include large storage volume, high data transferring rate and high usability. The traditional data backup mechanism needs business pausing and file system unmounting to maintain the data coherence, which prevents online backup. This paper derives from an international project cooperate with a Japanese company. It provides a solution that can backup data but not interrupt operation by use of the technology of strong storage management of VxVM. And this can implement data backup without pausing business, which improves the usability of system.