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数据灾备全称为数据灾难备份,是指为防止出现操作失误或系统故障导致数据丢失,而将全系统或部分数据集合,从应用主机的硬盘或阵列复制到其他存储介质的过程。
Data disaster recovery is referred to as data disaster recovery. It refers to the process of copying system-wide or partial data collection from an application host’s hard disk or array to other storage media to prevent data loss due to operational errors or system failures.