Performing a Primary/Secondary Switchover for a Remote Replication Consistency Group

This operation enables you to switch the roles of primary and secondary resources in a remote replication consistency group. If primary resources in the remote replication consistency group are faulty, you can perform a primary/secondary switchover. This operation enables secondary resources to become new primary resources, replacing the faulty primary resources to ensure service data continuity.

Prerequisites

Running Status of the remote replication consistency group and Secondary Resource Data Status of remote replication pairs in the consistency group support a primary/secondary switchover. Table 1 shows in which status a primary/secondary switchover can be performed for a remote replication consistency group.

**Table 1** Status requirements for performing a primary/secondary switchover for a remote replication consistency group
Running Status of a Remote Replication Consistency Group	Secondary Resource Data Status	Switchover Supported or Not
Normal	Consistent	×
Normal	Inconsistent	×
Split	Consistent	√
Split	Inconsistent	×
Interrupted	Consistent	×
Interrupted	Inconsistent	×
To be recovered	Consistent	×
To be recovered	Inconsistent	×
Invalid	Any status	×
Synchronizing	Any status	×
√: Supported ×: Not supported

Procedure

Choose Data Protection > Block Protection > Remote Replication Consistency Group.
Click More on the right of the desired remote replication consistency group and select Primary/Secondary Switchover.
Confirm your operation as prompted.