Huawei OceanStor V3 Series Features Manual page 101

OceanStor V3 Series
Remote Replication Feature Guide for Block
2.
To check on a standby server whether data replication succeeds, you need to mount the secondary LUN to the
standby server. Before mounting the secondary LUN, split the LUN and set Status of Secondary Resource
Protection to Read/Write.
Step 2 Check whether data replication succeeded.
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Step 3 Check whether a primary/secondary switchover can be performed on the secondary site.
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Step 4 Check whether data can be recovered.
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Issue 06 (2018-01-30)
Choose Provisioning > Mapping View, and choose the mapping view that the host
group which holds the application servers belongs to. Then click Create to add the
newly created LUN group to this mapping view.
NOTE
Log in to the application server at the primary site and write file X.txt to the primary
LUN. When Pair Running Status is Normal, go to the next step.
Wait 10 to 20 minutes. Then log in to the standby server at the secondary site to check
whether data file X.txt exists on the secondary LUN.
– If yes, data replication succeeded.
– If no, log in to the DeviceManager at site A, select Data Protection > Remote
Replication > Remote Replication Pair. Click the remote replication, and choose
More > Synchronize to synchronize data manually.
Log in to DeviceManager at the secondary site. Choose Data Protection > Remote
Replication > Remote Replication Pair and perform the following operations.
a. Select the remote replication pair to be split and choose More > Split.
b. Click Properties. Modify Status of secondary resource protection to Read/Write
to set the secondary LUN to readable and writable.
c. Choose More > Primary/Secondary Switchover to switch the secondary LUN to
the primary LUN.
Log in to the standby server at the secondary site and write file Y.txt to the new primary
LUN. Check whether the primary LUN is readable and writable.
– If yes, a primary/secondary switchover can be performed on the secondary site.
– If no, a primary/secondary switchover cannot be performed on the secondary site.
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.
Log in to DeviceManager at the secondary site, choose Data Protection > Remote
Replication > Remote Replication Pair, and perform the following operations.
a. Select the remote replication task for which you want to enable secondary resource
protection and then Properties. Modify Status of secondary resource protection
to Read-only to set the secondary LUN to read-only.
b. Click the remote replication task to be synchronized. Choose More > Synchronize
to perform the synchronization manually.
After the synchronization is complete, log in to the application server at the primary site
to check whether file Y.txt exists on the secondary LUN (after the primary/secondary
switchover).
– If yes, data can be recovered.
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4 Configuration Example
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