Failover; Ethernet Cable Connection Methods - Buffalo TeraStation TS4800D User Manual

"Run Differential Resync" will only copy data that does not exist at the replication target.
• Don't use the same TeraStation for both failover and replication, or replication and Time Machine.
• Don't configure replication from one source folder to multiple target folders.

Failover

With failover, two TeraStations are connected to the network for redundancy. If a problem occurs in the main TeraStation
so that it can no longer be accessed, operation is automatically switched to the backup TeraStation.
Notes:
• Use identical model and capacity TeraStations for the main TeraStation and backup TeraStation. If the capacity of
the main TeraStation is larger than that of the backup TeraStation, a "Replication I33 ReplicateFailure" error will
occur.
• All drive bays of a TeraStation should be occupied if it will be used for failover. Failover will not work if a drive is
missing from any bay.

Ethernet Cable Connection Methods

Two different configurations for failover are available. With the first setup, if the main TeraStation fails, the backup
TeraStation will replace it completely, using the same name and IP address. The backup TeraStation is updated over
normal network traffic.
Connecting to the network at LAN port 1 and setting failover at LAN port 1
With the second setup, the backup TeraStation and main TeraStation are connected by a second Ethernet cable
74