Precautions
l Based on Running Status of a consistency group, determine whether remote
replications in the consistency group can be split, as shown in Table 7-5.
Table 7-5 Status requirements for splitting remote replications in a consistency group
Running Status of a Consistency
Group
Splitting Remote Replications in a
Consistency Group
Normal √
Split ×
Interrupted (Link down) √(Can be performed only on the primary
device of a consistency group.)
Interrupted (Link up) √
To be recovered √
Invalid ×
Synchronizing √
√: Able to operate.
×: Unable to operate.
l When synchronous consistency groups are splitting, if the storage system has a controller
reset, which may cause synchronization failure in some remote replication tasks, the
consistency groups cannot guarantee data consistency.
Procedure
Step 1 Log in to DeviceManager.
Step 2 Choose Data Protection > Remote Replication > Remote Replication
Consistency Group.
Step 3 Right-click the desired consistency group and choose Split.
The security alert dialog box is displayed.
Step 4 Confirm the operation of splitting remote replications in the consistency group.
1. Carefully read the contents of the dialog box. Select I have read and understand the
consequences associated with performing this operation. and click OK to confirm the
information.
2. Click OK.
The Success dialog box is displayed indicating that the operation is successful.
3. Click OK.
----End
OceanStor V3 Series
Remote Replication Feature Guide for Block
7 Managing Consistency Groups
Issue 06 (2018-01-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
138
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