单选题A customer is planning on establishing a Global Mirror between two Storwize V7000 storagearrays. The customer is planning to lease an IP WAN connection between sites for the tasks andis running a SAP （database） application on Oracle. Which of the following planning considerationsis most important？（）Athe distance between sites needs to be less than 100 kilometersBconsistency groups should be created to maintain write order on the remote mirrorCensure sufficient bandwidth exists on the link based on average application workloadsDensuring a low round trip latency of less than 30ms on the WAN connection is required
单选题
A customer is planning on establishing a Global Mirror between two Storwize V7000 storagearrays. The customer is planning to lease an IP WAN connection between sites for the tasks andis running a SAP （database） application on Oracle. Which of the following planning considerationsis most important？（）
A
the distance between sites needs to be less than 100 kilometers
B
consistency groups should be created to maintain write order on the remote mirror
C
ensure sufficient bandwidth exists on the link based on average application workloads
D
ensuring a low round trip latency of less than 30ms on the WAN connection is required
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