Regarding Huawei's OceanStor V3 storage dynamic tiered storage technology, which of the following descriptions is wrong?

In the Huawei OceanStor V3 storage system, a customer plans to deploy 3 systems, a business system, running an Oracle database, which requires high random read and write performance; a mail system for daily mail processing; a video system, save long-term archived videos.
When creating LUNs for each system separately, which of the following Smart Tier policy settings are correct? (Multiple choice)

There are twos statements of fiber optic switches below, which is correct?
Statement 1: A port can be in multiple zones.
Statement 2: A switch can have multiple zones.

Which of the following two descriptions is correct?
Description 1: Synchronous remote replication. When the primary storage fails, the amount of data loss can be zero.
Description 2: When the host is a Linux-based file system, asynchronous remote replication must be used.

FC relies on a dedicated FC network, which is easy to form storage islands.