[THIN] Re: Server farm IP change - will it work?


Andrew
Does it matter if the Zone Data collector is on a separate VLAN? Should this be moved with the Presentation Servers?? 

Thanks


From: "Andrew Wood" <andrew.wood@xxxxxxxxxxxxxxxx>
Reply-To: thin@xxxxxxxxxxxxx
To: <thin@xxxxxxxxxxxxx>
Subject: [THIN] Re: Server farm IP change - will it work?
Date: Tue, 21 Nov 2006 13:36:16 -0000

'I've been assured' - I'd still test it tho' if I had 1p for every time I'd
been dropped in by assurance I'd have enough to buy a mix-up ;)
A zone isn't defined by a subnet, like say, you can define a site within AD. 
While the default zone name is taken from the server's IP address, the zone
name (and IP addresses of the servers within the zone) can be anything. Its
up to you as the admin/farm designer to define whats 'in' a zone. So you can change the zone name (if you've left it at a default) or create a new zone - 
but I'd say its more of a cosmetic change to avoid confusion than a
functional one. I'd say, simply rename it.
The license server doesn't need to be on the same IP address range - so from 
what you describe it might be more straightforward to keep it as is.

Hth.

-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf 
Of Angela Smith
Sent: 21 November 2006 12:11
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Server farm IP change - will it work?

Hi

Ive been assured the 2 VLAN's will see each other and there will be no
controls / restrictions between the VLANs.  Ive recently been informed that
only the PS4 servers are moving, not any of the backend servers such as SQL, 
Web interface etc.  This should make the change even easier.

We have a dedicated server running as the Zone Data Collector / Terminal
Services Licensing Server.  Would you suggest this server be moved to the
new Citrix VLAN so its on the same network as the other PS4 servers or does
it not matter??.
Will the Citrix server zone information automatically change when I move the 
servers into the new VLAN or will I need to manually change zones for each
server once its moved?

The only hardcoded reference I found is in a AD GPO which points to the
Terminal Services License server.  Everything else uses the DNS name.

Thanks
Ang


>From: "Andrew Wood" <andrew.wood@xxxxxxxxxxxxxxxx>
>Reply-To: thin@xxxxxxxxxxxxx
>To: <thin@xxxxxxxxxxxxx>
>Subject: [THIN] Re: Server farm IP change - will it work?
>Date: Mon, 20 Nov 2006 12:37:08 -0000
>
>I'd make sure you routing works between the two vlans - always fun
>finding your server come up with a new IP address and then you, or one
>of the servers providing license services, or database connections lose
>the connection because a gateway address or subnet is not configured
properly.
>
>You might want to check any iis services/ica winstation service to make
>sure that no one has forced the service to look at a particular IP
>address rather than 'default'
>
>If you've WI/PN agent/CSG services you'll need to update those as well
>whenever you move a server that's referenced by them. Likewise for any
>altaddr's you might have set up? Same goes for DNS entries - are they
>all dynamically configured or have you got some specific cname entries
>that have been configured manually?
>
>Possibly a check to make sure no bright spark configured a local hosts
>table entry on server(s) hard coding zDCs/license server/datastore?
>
>Bear in mind that the clients are going to be referencing something -
>do you have hard coded references to servers, or do you have DNS names
>(e.g.
>ica.mycompany.local) configured for your clients?
>
>Once you've moved a server you could run a qfarm and a dscheck to make
>sure there is nothing untoward hanging around.
>
>-----Original Message-----
>From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On
>Behalf Of Angela Smith
>Sent: 20 November 2006 10:09
>To: thin@xxxxxxxxxxxxx
>Subject: [THIN] Server farm IP change - will it work?
>
>Hi
>
>I need to move all my servers onto a separate VLAN and therefore need to
>change all the IP address's on all servers in the farm.   Are there any
>gotchas I should be aware of?
>
>- Is there an order in which I should do this - ie data collector
>first? WI server first?
>- Has anyone encountered any issues changing IP's on all servers in a farm? 
>- Does Citrix use the IP address for any function or does it use server
>names only?
>- Will I need to recreate the LHC after changing IP's?
>
>Farm is based on Presentation Server 4.
>
>Thanks
>Angela
>
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