Synchronizing A Hypermetro Consistency Group - Huawei OceanStor 2000 V3 Series Features Manual

OceanStor V3 Series
HyperMetro Feature Guide for Block
Parameter
Isolation Switch
Isolation Threshold (ms)
Step 5 Click OK.
Step 6 Click Close.
----End

5.4.3 Synchronizing a HyperMetro Consistency Group

This operation allows you to synchronize all HyperMetro pairs in the consistency group. The
synchronization ensures the consistency of data on the local and remote devices at the
synchronization point and protects the data validity of LUNs.
Prerequisites
The running status of a HyperMetro consistency group must be Paused, To be synchronized
or Force Start.
Context
If controllers of storage systems reset during the synchronization of HyperMetro consistency
groups, the synchronization of some HyperMetro pairs may fail. As a result, data consistency
of LUNs cannot be ensured.
Procedure
Step 1 Log in to DeviceManager.
Step 2 Choose
Consistency Group.
Step 3 Select the HyperMetro consistency group, and click Synchronize.
The security alert dialog box is displayed.
Step 4 Confirm the synchronization operation.
Issue 05 (2018-01-30)
Description
After the Isolation Switch
is turned on, the system will
suspend the HyperMetro
pair when the difference
between the write I/O
latency of the two storage
arrays is greater than the
isolation switch. The storage
array with the longer write
I/O latency will stop
providing services.
Write I/O latency difference
between the host and
HyperMetro storage arrays.
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HyperMetro > HyperMetro Pair > HyperMetro
5 Management
Setting
[Example]
Disabled
[Example]
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