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
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