5 Disaster Recovery........................................................................................................................ 95
6 Managing Remote Replication............................................................................................... 102
6.1 Viewing Information of Remote Replication Pairs.................................................................................................... 103
6.2 Modifying the Properties of a Remote Replication Pair.............................................................................................108
6.3 Synchronizing a Remote Replication Pair.................................................................................................................. 113
6.4 Splitting a Remote Replication Pair............................................................................................................................114
6.5 Performing a Primary/Secondary Switchover for a Remote Replication................................................................... 115
6.6 Switching Local LUN Owning Controllers................................................................................................................ 116
6.7 Synchronizing Remote Status.....................................................................................................................................116
6.8 Deleting a Remote Replication Pair............................................................................................................................117
6.9 Viewing Remote Replication Performance Indicators................................................................................................119
7 Managing Consistency Groups.............................................................................................. 122
7.1 Viewing Consistency Group Information...................................................................................................................123
7.2 Changing the Properties of a Consistency Group.......................................................................................................132
7.3 Synchronizing a Consistency Group.......................................................................................................................... 136
7.4 Splitting a Consistency Group....................................................................................................................................137
7.5 Performing Primary/Secondary Switchover of a Consistency Group........................................................................ 139
7.6 Enabling Protection For Secondary Resource Of Consistency Groups..................................................................... 140
7.7 Disabling Protection For Secondary Resource Of Consistency Groups.................................................................... 141
7.8 Adding a Remote Replication Pair............................................................................................................................. 142
7.9 Removing a Remote Replication Pair........................................................................................................................ 143
7.10 Deleting a Consistency Group..................................................................................................................................144
8 Managing Remote Devices...................................................................................................... 146
8.1 Viewing Remote Device Information.........................................................................................................................146
8.2 Modifying Remote Device Information..................................................................................................................... 149
8.3 Modifying the Advanced Properties of a Remote Link..............................................................................................152
8.4 Deleting a Remote Link..............................................................................................................................................153
8.5 Removing a Remote Device....................................................................................................................................... 154
9 FAQs.............................................................................................................................................156
9.1 What Are the Differences Between Synchronous Remote Replication and Asynchronous Remote Replication......157
9.2 How Do I Use the Secondary LUN in a Remote Replication Task............................................................................158
9.3 Why Information About the Primary Device and the Secondary Device in a Remote Replication Task Cannot Be
Updated In Real Time.......................................................................................................................................................158
9.4 What Is the Relationship Among a Remote Replication Task, Clone, and Consistency Group................................ 159
9.5 What Is the Principle of Setting Bandwidth for Remote Replication and LUN Copy among Storage Arrays..........159
9.6 Precautions for Creating a Remote Link.................................................................................................................... 160
9.7 Functions of Reserved Space for an Asynchronous Remote Replication Task..........................................................160
9.8 Impact of Modifying Consistency Group Properties..................................................................................................161
9.9 When Performing a Remote Replication Task, Is an Initial Synchronization Required to Synchronize Data from the
Primary Storage System to the Secondary Storage System............................................................................................. 161
9.10 Do I need to stop the services on the primary storage system before performing the initial synchronization.........162
OceanStor V3 Series
Remote Replication Feature Guide for Block Contents
Issue 06 (2018-01-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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