This object controls whether the chassis automatically synchronizes configuration data from Primary to Secondary five minutes after a change, once image files are already synced, or never does so automatically. An admin who wants tighter control over exactly when config changes propagate to the standby controller, for example during a maintenance window with many incremental changes, would disable this and sync manually instead of trusting the automatic 5-minute timer. With this object set to disabled(2), an admin making a series of test configuration changes on the Primary can be confident none will silently propagate to the Secondary until they choose to sync manually.