proxy groups - load-balance and a failover

[Alan Buxey]

hi,

not sure if i'm being silly, not had enough coffee or it cant be done.

basically, in a quick summary, want to have a proxy.conf which, for a realm
will use a bunch of servers in load balance mode...and if those fail, then use another
group of servers in a fail-over mode

eg

server_pool groupA {
serverA
serverB
serverC
client-load-balance
}

server_pool groupB {
serverD
}


server_pool groupX {
groupA
groupB
fail-over
}


with realm xxxxx.org using auth pool groupX

(obviously serverA etc are defined as home_server....i've stripped some of the right
words/config for brevity)


therefore I'd have a nice load balance for clients to a bunch
of servers....but if they all went wonky, i'd have a nice solid fallback
server to use.....

c'est possible?

alan