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On Tue, 2004-06-22 at 08:37, Shinichi Kido wrote:
> Thanks to kind members supporting this mailing list,
> I became to compose two nodes active-backup cluster
> using heartbeat.
>
> Now, I'm thinking if it is possible to compose 3-nodes active backup
> (1 active and 2 backup), I can achieve the higher reliability and cost
> effectiveness at once.
>
> Is it possible ?
It is but I did it with Keepalived. Actually I used an
Active/Active/Active setup.
LVS Director one - Primary for LVS-NAT/LVS-DR.
LVS Director two/Primary Mail Server/Secondary DNS - Backup for
everything except Mail and Secondary for LVS-NAT/LVS-DR.
LVS Director three/Secondary Mail Server/Primary DNS- Backup for
everything except DNS and Secondary (lower priority than director two)
for LVS-NAT/LVS-DR.
For Mail and DNS I only used the failover functionality in Keepalived
while for anything that used LVS-NAT I did both failover and
loadbalancing.
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