Step 4 Check whether data can be recovered.
1. Log in to DeviceManager at the secondary site. In the navigation tree, choose Data
Protection > Remote Replication > Remote Replication Consistency Group and
perform the following operations:
a. Right-click the consistency group for which you want to enable secondary resource
protection. Choose More > Enable Protection for Secondary Resource to set
secondary LUNs of all remote replication pairs in the consistency group to read-
only.
b. Right-click the remote replication task to be synchronized. Choose More >
Synchronize to perform the synchronization manually.
2. After the synchronization is complete, log in to the application server at the primary site
to check whether file Y1.txt exists on the secondary LUNs (after the primary/secondary
switchover).
– If yes, data can be recovered.
– If no, data cannot be recovered. Check whether an alarm about remote replication
exists on DeviceManager at the primary and secondary sites. If yes, solve the fault
based on the alarm information and repeat the previous operations. If no, contact
technical support engineers.
3. Switch services back to the primary site after the verification. Log in to DeviceManager
at the primary site, choose Data Protection > Remote Replication > Remote
Replication Consistency Group, and perform the following operations.
a. Click the consistency group to be split and choose More > Split.
b. Choose More > Disable Protection for Secondary Resource to set secondary
LUNs of all remote replication pairs in the consistency group to readable and
writable.
c. Choose More > Primary/Secondary Switchover to switch secondary LUNs of all
remote replication pairs in the consistency group to primary LUNs.
d. Choose More > Enable Protection for Secondary Resource to set secondary
LUNs of all remote replication pairs in the consistency group to read-only.
e. Click the consistency group to be synchronized. Choose More > Synchronize to
perform the synchronization manually.
----End
OceanStor V3 Series
Remote Replication Feature Guide for Block
3 Configuring Remote Replication
Issue 06 (2018-01-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
71
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