Zh-hans:磁盘镜射

From BCMpedia. A Wiki Glossary for Business Continuity Management (BCM) and Disaster Recovery (DR).
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1. Disk Mirroring 磁盘镜像磁盘镜像是指连接在一个主机控制器下的双磁盘系统,其中的一个将作为另一个磁盘的镜像。当数据被写入其中一个磁盘时,它同时也被写进另一个（镜像）磁盘中，因此两个磁盘包含完全相同的信息。

相关术语:镜像、数据保护/恢复策略-类型

注:磁盘镜像保护数据,预防硬件故障。如果一个磁盘发生故障,另一个磁盘依然能够为用户提供数据。

BCMBoK Competency Level
BCMBoK 4: Business Continuity Strategy CL 3D: Advanced (DR)

(Source: Business Continuity Management Institute - BCM Institute)

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