OceanStor 9000 failover and failback

can anyone suggest better way to add steps in the failover and failback procedure , i have made this below but customer is not happing and they want me to use more clarify on the steps.

In storage disaster recovery, when the production site fails due to disasters or other faults, the disaster recovery site takes over services to ensure normal service running.

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Prerequisites

1. Exporting the Configuration File of a Shared Directory on the DC Storage

2. Importing the Configuration File of a Shared Directory on the DR Storage

3. Latest Synchronization is completed.

4. Stop User service.

5. NDMP backups are completed.

6. The pair Status is Interrupted or spilt.

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Steps for Failover--------------------------------------------------screenshots will be added for each step.

1. Disable write protection for the secondary directory2. Wait until the status of the snapshot rollback of the secondary directory of the remote replication pair changes from No to Yes.

3. Modify the external DNS Server.

Forwarding Configuration

Change the IP address from 10.100.xxx to 10.xxx

Delegate Configuration

Change the IP address from 10.100.xxx to 10.xxx

4. Re-access the User service.

Mount the secondary directory of the disaster recovery end on the clients

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Steps for DC-DR Switchover-(Optional)

A primary/secondary switchover is a process of switching the roles of the primary and secondary directories in a remote replication pair.

1. Select the remote replication pair and perform a primary/secondary switchover.

2. Select the remote replication pair and enable write protection for the secondary directory.

3. Wait until the status of the snapshot rollback of the secondary directory of the remote replication pair changes from Yes to No.

4. Select the remote replication pair one by one and click Synchronize.

5. Now the primary directory will be stored on DR Site and secondary directory on DC Site.