12.2.1 Procedure for Restoring One Node

Restore the server that was backed up with the backup related services. For how to restore the server, refer to the official NIFCLOUD documentation.
Note
Do not start the node.
When not using the mirroring among servers of GDS, start the node restored in step 1.
When using the mirroring among servers of GDS, perform the following procedure.
1. Start the node restored in step 1 in single-user mode, and execute the following command from the NIFCLOUD console.
```
# systemctl disable target.service
```
  After the setting, stop the node restored in step 1, and start the node in multi-user mode.
2. After starting the node restored in step 1, execute the following command to detach the disk.
  Perform this step on the node that is not restored in step 1.
```
# sdxswap -O -c <class name> -d <name of the disk on the node restored in step 1>
```
  If multiple netmirror groups exist, repeat this step for the number of groups.
3. Execute the following commands on the node restored in step 1 to restart the node.
```
# systemctl enable target.service
# shutdown -r now
```
4. After starting the node restored in step 1, execute the following command to restore the disk.
  Perform this step on the node that is not restored in step 1.
  If multiple netmirror groups exist, repeat this step for the number of groups.
  - When waiting for the synchronization copying
  Execute the following command.
```
# sdxswap -I -c <class name> -d <name of the disk on the node restored in step 1>
```
  - When not waiting for the synchronization copying
  Execute the following command. After executing this command, use GUI or the sdxinfo command to check if the synchronization copying is completed.
```
# sdxswap -I -c <class name> -d <name of the disk on the node restored in step 1> -e nowaitsync
```
If the server is restored with the backup related services other than the One Day Snap Shot function in step 1, perform step 3 to 5 in "9.8.1.2 Setting up the Shutdown Facility" on all nodes.