You want to improve host write performance on the primary storage. Two sets of OceanStor unified storage with synchronous remote replication are effective in doing this is which of the following ways? (Multiple choice.)

You want to improve host write performance on the primary storage. Two sets of OceanStor unified storage with synchronous remote replication are effective in doing this is which of the following ways? (Multiple choice.)
A . RPO does not require 0 for the scenario, it is recommended to use asynchronous remote replication.
B . The main storage using smart cache acceleration, speed up the main storage IO processing speed.
C . According to the service pressure of the LUNs stored on theprimary side, assign the home controllers of each LUN to the A and B controllers.
D . If you are using an asynchronous remote replication scheme, you need to design a startup synchronization time based on the RPO metrics and consider the setting possible startup synchronization time during the business.

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Answer: A,C,D