Machine 2's workload fails over to machine 1 in the event of a failure and vice versa.
在出现故障时，机器2的工作量会故障转移到机器1中，反之亦然。
2
The file /usr/vice/etc/ThisCell contains local cell names for this AFS client whereas /usr/afs/etc/ThisCell contains cell names whose database servers will be running on this machine.
Because IP makes the details of the network irrelevant, all that matters is that the bits sent by your machine are received by my machine, and vice versa.