IPVS hosting on the Internet

[Joseph Mack NA3T]

On Fri, 11 May 2007, Torsten Schlabach wrote:

> Dear list!
>
> Does anyone know of any provider which allows the hosting of IPVS at
> reasonable prices?
>
> Let me briefly explain what the problem is:
>
> I understand that using IP Virtual Server I can set a a cluster of
> machines that share on IP address and use some heartbeat mechanism to
> negotiate on what pyhsical NIC that IP address will be at any given
> point in time.

not exactly true, but I don't know that this affects your 
problem. An LVS appears as a single box to the outside world 
with the VIP facing the internet. Whatever trickery goes on 
inside the LVS is of no concern to the routing 
infrastructure.


> Now if we want to build a reliable service on the Internet (say a
> website, for example) we can have one A record for www.oursite.net point
> to one IP address only. So we would want that IP address to
> transparently fail over between two data centers.

this will cost you $ and the data centers would have to 
cooperate. Presumably they'd have to be owned by the same 
company.

> Of course we can put two (or more) servers into different data centers
> but one IP will be routed to one physical destination, won't it?

this is the nature of data centers and routing. ISPs are 
alloted blocks of IPs.

> So wouldn't it make sense for someone who owns a network infrastructure
> to offer IPVS as a service and have the IP address point to whatever
> real servers which I can configure?

It seems that you think that an LVS operates by failover - 
this isn't true.

Joe

-- 
Joseph Mack NA3T EME(B,D), FM05lw North Carolina
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