单选题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 Metr

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单选题
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)

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