Synology SA3200D Synology High Availability SHA User Guide for DSM 7.0 - Page 50

Chapter 5: Maintain your High-availability Cluster Method 2: Switchover You can also reduce the service downtime when installing network interface cards by utilizing the switchover function. 1. Sign in to your high-availability cluster and go to Synology High Availability > Host. 2. On the passive server, click the power button and select Shut Down. 3. Refer to the Hardware Installation Guide for instructions on how to install the network interface card on the passive server. 4. Power on the passive server by pressing its power button. 5. Sign in to your high-availability cluster. 6. Go to Synology High Availability > Network > Hosts to confirm that the network interface card has been successfully installed. 7. On the Cluster page, click Manage > Switchover. 8. Perform steps 1-6 again on the other server to install the network interface card. 5.8 Data migration If you purchase a new Synology NAS, your existing data can be moved from an old Synology NAS to the new one via a process called migration. This section introduces data migration methods that can be used in a high-availability cluster. These methods allow you to replace the servers in the cluster without losing the original cluster data. Before you start • Performing migration moves data and drives from one Synology NAS to another. In this section, the following terms are used: • Source Synology NAS: The original Synology NAS from which data is moved. • Destination Synology NAS: The Synology NAS to which data is moved. • Make sure both the source and destination Synology NAS are running the same version of DSM. • Make sure that the drives and Ethernet cable configurations are the same on the source and destination Synology NAS. • Make sure that the two servers are the same models or are supported hybrid highavailability models after being migrated to the new Synology NAS. Refer to this article for supported hybrid high availability model combinations. 48