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OceanStor 18500, 18800, and 18800F Storage System V100R001C30 Remote Replication Feature Guide 09

This document describes the remote replication feature, in terms of the implementation principle, application scenario, configuration process, and reference information.
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How Do I Use the Secondary LUN in a Remote Replication Task

How Do I Use the Secondary LUN in a Remote Replication Task


How do I use the secondary LUN in a remote replication task?


The primary LUN and the secondary LUN in a remote replication form a pair, and the secondary LUN stores a data duplicate for the primary LUN.
  • In normal cases, the secondary LUN cannot be accessed by a host. To enable a host to access data on the secondary LUN, you can create a snapshot for the secondary LUN and map the snapshot to the host.
  • When the primary LUN fails and causes service interruption, you must perform a primary/secondary switchover to change the secondary LUN to the primary LUN, and then map the new primary LUN to the host.
Updated: 2019-01-28

Document ID: EDOC1000077758

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