What Is the Usage of the Secondary LUN of Remote Replication?

In a remote replication session, the secondary LUN and the primary LUN form a pair, and the secondary LUN backs up the data on the primary LUN. Normally, the secondary LUN (unreadable and unwritable) cannot be accessed by hosts. If a host needs to access the secondary LUN, you can create a snapshot for the secondary LUN and map the snapshot to the host.

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