Create a backup before updating, installing Workshop mods, changing command lines, uploading missions, or editing server.cfg. A backup gives you a restore point if the server fails to start or a mission/mod change causes problems.
- Open your Arma 3 server in the control panel.
- Click Backup Server.
- Wait for the backup task to finish before making further changes.
For the cleanest backup before large mod or mission changes, stop the server first so files are not being written while the backup runs. This is especially useful before changing server.cfg, replacing files in MPMissions, or changing command line mod folders.
Before you continue
Wait for the backup task to finish before making changes. If the backup was taken before a risky edit, keep a note of the time so you can identify the correct restore point later.
If the backup fails
Refresh the control panel and check whether another task is already running. If it fails again, stop before changing files and submit a support ticket with your server name and the backup error shown in the panel.
