A customer needs to achieve a very aggressive RTO of 30 minutes or less. A critical requirement is a continuous availability and disaster recovery solution for the mainframe environment. What IBM solution should be recommended to this customer?（）
- A、Metro Mirror
- B、Metro/Global Mirror
- C、Geographically Dispersed Open Servers (GDOS)
- D、Geographically Dispersed ParallelSysplex (GDPS)
正确答案:D
答案解析:有
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