Huawei OceanStor V3 Series Features Manual page 25

OceanStor V3 Series
Remote Replication Feature Guide for Block
Users can perform synchronization, splitting, and primary/secondary switchovers for a single
remote replication session or perform these operations for multiple remote replication sessions
using a consistency group. Note the following when creating a consistency group:
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l
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Remote Replication Without Using a Consistency Group
Data on LUNs not added to a consistency group is at risk for becoming unavailable, as shown
in Figure
Issue 06 (2018-01-30)
Remote replication sessions can be added to a consistency group only on the primary
storage system. In addition, secondary LUNs of all member remote replication sessions
must be in the same remote storage system.
LUNs of different member remote replication sessions in a consistency group can belong
to different working controllers.
Remote replication sessions in the same consistency group must use the same remote
replication mode.
1-6.
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