According to the HPE SimpliVity Stretched Cluster Technical Overview1, one of the configuration requirements for implementing a stretched cluster is that the storage network in each physical location must use the same subnet. This ensures that the HPE OmniStack System can communicate with each other across the sites and maintain data synchronization and availability. The other options are not correct because:
The arbiter must be located in a third site that is independent from the two stretched cluster sites1.
The round trip latency must be below 5ms, not 50ms, to avoid performance degradation and data inconsistency1.
A direct-connected network configuration is not required, as long as the network supports jumbo frames and VLAN tagging1. References: 1: HPE SimpliVity Stretched Cluster Technical Overview (51462)
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