基于磁带分级存储的文件备份系统设计与实现

Tape-based Tiered Storage File Backup and Recovery System Design and Implementation

随着磁盘价格的不断下降,越来越多的容灾备份系统采用将本地数据经过网络传输到服务器磁盘进行备份,但是大数据时代的来临,导致存储压力越来越大。然而在庞大的数据中,有很大一部分数据活跃率并不高。设计并实现了一种基于磁带分级存储的文件备份与恢复系统,采用索引的方式记录并组织备份文件,实现增量备份;该系统将服务器端拆分为两部分,首先将文件数据备份到服务器磁盘,再根据相关时间保留策略,将活跃率较低的数据归档到磁带中。保证了大数据时代服务器磁盘的高效利用。

As disk prices continue to fall, more and more disaster recovery system uses the local data through the network to the server disk backup. But the big data led to increasing pressure on storage. However, in the huge data, a large part of the data activity rate is not high. This paper designs and implements a hierarchical storage tape-based file backup and recovery system that uses indexed way to record and organize the backup file to achieve incremental backup; The system on the server side is split into two parts, first, the file data is backed up to the server disk, then, according to the retention policy relevant time, the system will be active low rate data archiving to tape. Ensuring the efficient use of server disk in the era of big data.