Re: Direct Routing method is efficient or not

Radhika <[email protected]> wrote:
> [-- text/plain, encoding 8bit, charset: iso-8859-1, 29 lines --]
> 
> Hi,
>   
>  I hope some one help me in this situation
>   
>  We are having two webservers
>   
>  1) webserver1 -- 1 physical network card and 2 virtual network cards
>  configured for websites hosting
>   
>  2) webserver2 -- 1 physical network card and 2 virtual network cards
>  configured for websites hosting
>  
> We are planning to configure HA and load balancing for these two
> servers.We are planning to install two(2) director machines with
> direct routing.This direct routing method is efficient or not.

LVS is very efficient.

>  One important question is with physical and virtual ip network cards
>  are presently serving the websites requests.
>  
>  If we need to configure Ultramonkey with HA and loadbalancing i need
>  to add one more virtual network card on  both the real servers to
>  share the information.My question is sharing one virtual ip with
>  virtual ip address(which is serving for websites) in main server will
>  work or not.

As your linux-directors are separate machines, you should
not need to add any more addresses to the real-servers.

>  One virtual ipaddress need to configure in two directors to share the
>  information.  Is there anyother wany to configure easily with this
>  configuration and which is best for this environment.

I would guess that the easiest way to achieve your goals is
to use LVS-NAT, as discussed at:

http://www.ultramonkey.org/3/topologies/ha-lb-overview.html

LVS-DR should also work. But it is a little more tricky to set up.

http://www.ultramonkey.org/3/topologies/hc-ha-lb-overview.html

-- 
Horms


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