Win2008 multi site cluster (with multiple subnet) over a win2003 A

Hello,

I implemented a 2 node geo cluster running windows 2008 (one node in each
site). Because customer could not create a unique vlan spanning both sites, I
used the new windows 2008 feature that allows multi subnet. I created a file
server over that infra-structure. When creating that resource, system asked
for 2 ips (one in subnet of site 1 and another in subnet of site 2).
Everything seems ok: I can do failovers and failbacks at will and the ip
resource in the subnet not in use shows down (or failed), which is normal, I
believe. Right?

The problem is that the domain is in windows 2003 level and so, when doing a
failover it seems that the DNS (and possible the AD) does not dynamically
redirect client requests to the activated subnet. How to deal with this? As a
workaround, I added a second DNS record for the same name (the ip of subnet 2
refering the same resource name) and instructed clients (via GPO) to not use
their own DNS resolver, to avoid failed requests to cached old ip subnet. But
I am wondering, is there any other solution, perhaps, more elegant?

Thank you for your time,

"Miguel P. Faria" <> wrote in message
news573F1B9-3871-43C4-933D-...
> The problem is that the domain is in windows 2003 level and so, when doing
> a
> failover it seems that the DNS (and possible the AD) does not dynamically
> redirect client requests to the activated subnet. How to deal with this?
> As a
> workaround, I added a second DNS record for the same name (the ip of
> subnet 2
> refering the same resource name) and instructed clients (via GPO) to not
> use
> their own DNS resolver, to avoid failed requests to cached old ip subnet.
> But
> I am wondering, is there any other solution, perhaps, more elegant?

The issue is the DNS cache. What you can do is set the TTL on the record to
reduce the cached time.

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