the opposite of DEPENDS?

I have three LDAP servers. Searches can go on happily as long as one of the three is working, so what I’d like is something like this:

LDAP running on all three servers: green LDAP running on one or two servers: yellow LDAP running on zero servers: red

I’m sure I could write a server-side script for this, but there are service checks already in place that I’d like to use.

Is that possible? Am I missing something obvious in the man pages? Thanks.

-- Rob McBroom <http://www.skurfer.com/>