preferred array mode, IO is only distributed in the priority array. Does dual-active deliver I0 to both ends for storage at the same time? 
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GaodeGe! 2025-01-31 23:11 published
in China
The preferred array mode. IO is to select the preferred array and write I0 to the peer. The two sites are load balancing. The remote array and the host are also connected. If you write to the remote array, you need to go through the network. The host is in data center A, and the host is stored in data center B, which must be accessed across networks, the latency increases. Therefore, if I0 is issued at one end and IO is copied to the other end, cross-site access is reduced.
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