known_hosts(5) man page

[Dave Yost]

At 12:08 AM -0600 2009-10-25, Bob Proulx wrote:
>Jim Rees wrote:
>> Given that the hosts are interchangeable from the client's point of view,
>> shouldn't they both have the same host key?
>
>Let me second that.  A pool of failover servers should have the same
>host key.  They aren't individual machines at that point.  Like
>mirrored disks they are logically mirrors of each other.

Hard to say. These aren't really a failover or a load-balanced group. It's more like a server plus other machines that can be pressed into service to fill in for the server in a pinch, in addition to the other stuff they do.