版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/stevensxiao/article/details/82850802
推荐一篇关于Data Guard的科普文章，Replication Done Right!
Summary：
Data Guard and Active Data Guard are key components of Oracle Maximum Availability Architecture (MAA). This blog article explains why Oracle database replication technologies offer superior disaster protection than storage-level replication.
几个关于存储复制失效的案例：
- Australian Tax Office，基于3Par
- Tieto，基于EMC VNX5700
- American Eagle Outfitters，基于IBM磁盘阵列
- Virginia Information Technologies Agency (VITA)，基于EMC DMX-3
其中包括MAA的Demo资源：
http://www.oracle.com/technetwork/database/features/availability/demonstrations-092317.html