单选题A financial customer has three data centers that are approximately five kilometers apart. Their SAP application data needs to be kept synchronized within 10 milliseconds between the three sites. Which of the following solutions satisfies the customer's recovery time objective?（）ADS8700 systems at each site running Metro MirrorBDS5300 systems at each site running Metro MirrorCDS5100 systems at each site running Global MirrorDXIV systems at each site running synchronous mirroring
单选题
A financial customer has three data centers that are approximately five kilometers apart. Their SAP application data needs to be kept synchronized within 10 milliseconds between the three sites. Which of the following solutions satisfies the customer's recovery time objective?（）
A
DS8700 systems at each site running Metro Mirror
B
DS5300 systems at each site running Metro Mirror
C
DS5100 systems at each site running Global Mirror
D
XIV systems at each site running synchronous mirroring
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