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Citrix PS 4.5 2003 Server upgrade to 2008 R2

Posted on 2011-09-10
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I am in the process of migrating our Citrix environment and I am looking for a help to upgrade our serves from  windows 2003 server to windows 2008 R2. Currently we installed PS 4.5 in all our windows 2003 servers. We have 13 Windows 2003 servers. Need help to upgrade all our servers to 2008 R2.
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Question by:Sekar Chinnakannu
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by:robocat
ID: 36518654

Citrix does not support in place OS upgrades.

You need to build a new Xenapp 6/Windows 2008 farm beside the existing farm. Then move all users over from the old to the new farm.

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by:Sekar Chinnakannu
ID: 36521696
can I use same data store,License, WI? also will be there any impact if I add new 2008 R2 server in the farm.

We are using platinum version license or should I need to but new license How can I start from scratch. Please help me in this.
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robocat earned 500 total points
ID: 36522040

>will be there any impact if I add new 2008 R2 server in the farm.

You need to create a new farm, adding a new Xenapp 6 server to an existing farm is not supported. Basically, the old and new versions don't intermix in any way. This is not an upgrade but a migration, so you need to create a new Citrix environment from scratch.

If you have susbcription advantage, you can get the new licenses for free. Otherwise you need to buy new licenses.

Beware that Xenapp 6/Windows 2008R2 is a 64bit only environment, all your apps need to be compatible with 64bit (though they can be 32bit).

Don't underestimate this migration, it could be a major project.

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by:Sekar Chinnakannu
ID: 36523023
so how about window2008 server as most of our apps are 32 bit app. Also some apps are 64 bit. Please let me know if I am going for major project what are all things we need to do.
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Assisted Solution

by:robocat
robocat earned 500 total points
ID: 36525256

If you want to stay on 32bit Windows, you need to stay with Xenapp 5 (Xenapp 6 is strickly 64 bit only), but this is not recommended. Going 64 bit is a big advantage for Citrix servers, because more memory is available to all the apps, giving better performance to the users.

What do you need to do:

1. You need to test if your apps install and work correctly on 64 bit Windows. Apps that are designed for Vista/7 are almost certainly compatible. Olders apps may require some tweaking or may not work at all.

2. Buy new 64 bit server hardware. RAM is cheap, so add plenty.

3. Study new features like Provisioning server. They could make your life a lot easier. Get your licenses and install a new Citrix farm. Install all your apps.

4. Install the new citrix receiver on the clients and move your users to the new farm.
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Author Comment

by:Sekar Chinnakannu
ID: 36528239
so can I add both 64\32 bit server in same farm if I am going to start from scratch creating new farm.
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Assisted Solution

by:robocat
robocat earned 500 total points
ID: 36529755

No, 32 bit (Xenapp 5) and 64 bit (Xenapp 6) can not exist in the same farm.

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by:Sekar Chinnakannu
ID: 36530939
So for xenapp 5 with 2008 servers should I need to go with new farm or can I go with current farm?
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Assisted Solution

by:robocat
robocat earned 500 total points
ID: 36532122

You can use the existing farm, however citrix does not recommend it. We have no experience in doing so.

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Author Closing Comment

by:Sekar Chinnakannu
ID: 36537154
Thanks
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