[THIN] Re: Virtualizing Citrix
- From: "Steve Greenberg" <steveg@xxxxxxxxxxxxxx>
- To: <thin@xxxxxxxxxxxxx>
- Date: Fri, 25 Jul 2008 09:43:50 -0700
I think the safe way to approach this is to NOT oversubscribe RAM and CPU.
That is, take a big and powerful box and carve it up in direct
relationships. I.e. if you have 8 Cores, perhaps te 4 machines with 2 CPUs
each, if you have 16GB of RAM, give each of the 4 machines, 4GB. etc
Steve Greenberg
Thin Client Computing
34522 N. Scottsdale Rd D8453
Scottsdale, AZ 85266
(602) 432-8649
www.thinclient.net
steveg@xxxxxxxxxxxxxx
_____
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf
Of TSguy92 Lan
Sent: Friday, July 25, 2008 9:35 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Virtualizing Citrix
TS hosted under VMware is certainly doable, however even if you can replace
7 physical boxes with one beefy ESX box, for fault tolerance purposes you
should certainly consider getting more than just one ESX box, and it's
worthwhile investment with multiple ESX servers to get Virtual
Infrastructure as well.
Hardware still fails, and if your one beefy box goes offline taking all 7
virtual servers down, you're dead in the water. With Virtual Infrastructure,
and additional ESX systems, those 7 virtual servers could auto fail over to
other online ESX servers while you repair your downed hardware.
We support about 350 staff on virtualized win2k3 citrix 4.0 systems with
vmware 3.5. We host these on HP Proliant BL465c G1 blades, with 4 cpus, and
16gb. At this point we're running about 10 virtual TS servers per ESX host
in a 4 server vmware HA cluster, we've room to add more TS virtuals if
needed.
Depending on application set, your mileage may vary.
On another note, although our virtualized TS systems have certainly served
us well, changing needs in our application requirements is leading me to
look more into VDI type solutions to supply our app set to our staff
members. On our TS servers, our apps are fighting each other for CPU a bit
too much for my liking, and we really can't silo off apps anymore than we
have. So it seems to me a VDI solution where each user / app has their own
isolated winxp virtual space to work from (vs a shared TS environment) may
be a better fit...we'll see...just starting into the design and testing of
this.
HTH
Lan
On Fri, Jul 25, 2008 at 6:28 AM, Minero, Hector B CIV NSWCDD, K55
<hector.minero@xxxxxxxx> wrote:
Hi all,
I see all these messages going back and forth about virtualization, but not
much information on how Citrix/TS behaves in a virtualized environment.
A tech./sales person from Dell came yesterday and told me that I could
probably replace 7 of my PowerEdge 2850 with one beefed up PowerEdge R900
and virtualize the 7 Citrix servers. I find that kind of hard to believe.
Each of my 2850's can handle about 30 to 40 users concurrently. I just
don't think that an R900 could handle 200 + users with virtual Citrix
servers.
Is anyone out there using VMWare to virtualize Citrix servers in a
production environment?
What kind of hardware?
How many virtual servers per physical server?
How many users?
I would greatly appreciate your advice as I am new to VMWare.
_______________________________
Hector Minero
NSWCDD K55
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