After the initial synchronization of a remote replication pair, if an application server writes data to primary resources or you need to split the pair, data inconsistency between primary and secondary resources may occur. This section describes how to synchronize the remote replication pair to ensure data consistency between primary and secondary resources.
Prerequisites
- The remote replication pair for which you want to perform data synchronization has not been added to a consistency group.
- Secondary resource protection has been enabled.
- Running Status of the remote replication pair supports synchronization. Table 1 describes in which status a remote replication pair can be synchronized.
Table 1 Status requirements for synchronizing a remote replication pair Running Status of a Remote Replication Pair
Pair Sync Supported or Not (Async Remote Replication)
Pair Sync Supported or Not (Sync Remote Replication)
Normal
√
√
Split
√
√
Interrupted (link down)
×
×
Interrupted (link up)
√
√
To be recovered
√
√
Synchronizing
×
×
Invalid
×
×
√: Supported
×: Not supported
Procedure
- Choose Data Protection > Protection Entity > Volume > Remote Replication Pair.
- Select one or more desired remote replication pairs and click Synchronize.
You can also click More on the right of a desired remote replication pair and select Synchronize.
- Confirm your operation as prompted.