需要为每个受保护的数据库分配单独的HADR端口，这些端口不能是已经分配给DB 2实例的端口。
You will need to allocate separate HADR ports for each protected database - these cannot be the same as the ports that have been allocated to the DB2 instance.
“端口”是用于任务之间通信的受保护的消息队列；任务拥有各自端口的发送和接收权限。
A "port" is a protected message queue for communication between tasks; tasks own send and receive rights to each port.
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