NOTICE
The active-active storage systems can be powered on at the same time. After they are
powered on, wait until HyperMetro Pair and HyperMetro Consistency Group
become Normal. Then, you are allowed to power on service hosts.
The consistency group does not support the NAS HyperMetro pair.
4. Power on service hosts and enable host services.
----End
6.4 When Both the HyperMetro and Remote Backup
Services Are Created, the Excessively Low Link
Bandwidth Between Storage Systems Causes the Remote
Backup Service to Fail
Question
Only one replication link is established between storage systems, and both the HyperMetro
and remote backup services are created. In this scenario, why does the remote backup service
fail?
When the host service bandwidth is higher than the replication network bandwidth between
storage systems, the service with a high priority is preferentially processed. In the preceding
scenario, the link bandwidth is too low. As a result, the service with a low priority fails.
NOTE
HyperMetro and synchronous remote replication take precedence over HyperVault and asynchronous
remote replication.
Answer
Perform the following operations:
Step 1 Increase the replication link bandwidth or the number of replication links to ensure that the
replication network bandwidth is higher than or equal to the peak service bandwidth.
Step 2 Check whether the remote backup service is normal.
l If the remote backup service is normal, no further action is required.
l If the remote backup service is abnormal, contact Huawei technical support.
----End
OceanStor V3 Series
HyperMetro Feature Guide for File
6 FAQs
Issue 05 (2018-01-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
176
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