Run Citrix PS4.5 on VMWare

I am thinking of getting a server with for example:
dual quad xeon processors
16G RAM
6 disks (single volume RAID10?)(or 2 split raid5?)

I want to run 3 or 4 CItrix PS4.5 on this machine as VMware on top of ESXi

Any recomendation for or against this?  We are implimetning vmware and I dont see the point in learning Xen virutal environment.  Why learn 2 things that do the same thing right?  I am extrememly limited on manpower.

Advise please.
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EricIT ManagerAsked:
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Joseph DalyCommented:
Well your hardware should be adequate to run the citrix environment. I know there are some specifal considerations of virtualizing citrix that Xen was basically built for but it is totally possible with VMware.

Have you had a look at VMwares citrix documentation?
http://www.vmware.com/vmtn/resources/260
and
http://www.vmware.com/pdf/esx21_Citrix.pdf
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Andrew DoadesIT TechnicianCommented:
Your hardware is pefect, and although Xen might be suited for citrix VMware is more simple, and easier to install, and manage.
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Carl WebsterCommented:
I have several customers customers with your config and they have no problems.

If you load up each VM with Server 2003 Std and 4GB of RAM, depending on your apps, you should easily be able to get 20 to 25 users per VM.  So with 4VMs, you "should" be able to get almost 100 users on that server.

I would go with a 6 drive RAID5 config.

If you already have a VMware ESX infrastructure, there is no reason to purchase and learn XenServer.
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Paul SolovyovskySenior IT AdvisorCommented:
I've used the following optimization guide for setting this up at customer sites and it's helpfull

http://www.stefanschuller.com/guides/guide-optimize-performance-citrix-vmware-esx.html
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EricIT ManagerAuthor Commented:
All good info.  I just realized xenserver is a company wide vm solution. I thought it was only for citrix.  
Anyone used xen server as opposed to vmware?  Seems to have most the same features for less money..
I just dont want some xen servers and some vmware. I need to pick a direction and go with it.
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Carl WebsterCommented:
If you will mainly be virtualizing XenApp servers, then go with XenServer.  You can get 2 to 3 times more users than with ESX or Hyper-V.  XenServer has optimizations specifically for XenApp so you don't have to manually edit a bunch of config files.  There is a check box that says "Optimize for XenApp" and you are done.
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EricIT ManagerAuthor Commented:
Im looking to do most servers (DC's /web /CRM / blackberry)
not sure yet about exchange or SQL. I would guess SQL would be the least likely as its our production accoutning system
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Paul SolovyovskySenior IT AdvisorCommented:
All the servers you mentioned should work just fine.  Exchange 2003 works well, Exchange 2007 is a bit slower than on physical but depending on your environment may be a good fit, we have several customers running both.  Same with SQL, it all depends on the I/O.  You can always do a P2V of a domain controller and SQL server onto a switch with no physical nics attached or a test vlan.  Once in a virtual environment you can run stress tests such using IOMeter and the like and see what the actual performance is.  This way you'll have a baseline to work with.

 
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Paul SolovyovskySenior IT AdvisorCommented:
The above test environment I meant to say you can put it on a vswitch with no physical nics attached.  My mistake
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EricIT ManagerAuthor Commented:
I decided to go with Xenserver.  Thanks for all your useful information.
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