[THIN] Re: VMWare ESX Server
- From: Jennifer Hooper <jennifer.hooper@xxxxxxxxxxxxx>
- To: "'thin@xxxxxxxxxxxxx'" <thin@xxxxxxxxxxxxx>
- Date: Wed, 8 Dec 2004 09:47:36 -0800
This is *great*. I actually did, and forwarded it on to the people who
engineered this design. I do not think they even thought about what they
would convert and not, because they are doing everything except for the 3
machines that have fax boards in them. I'm going to nab this paper again,
and further pick it apart. There are some apps guys who would love to see
this. Especially those who are responsible for Peoplesoft 8... oh wait,
he's leaving next week. *feh*
Thanks for all the info gang, and let me know if you have anything else!
Thanks,
Jen
_____
From: Ron Oglesby [mailto:roglesby@xxxxxxxxxxxx]
Sent: Wednesday, December 08, 2004 9:39 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: VMWare ESX Server
Jen, Did you get my paper on the VM selection process? IE what makes a good
candidate for Virtualization. Not everything does. Apps/server with high
numbers of system/kernel calls, Citrix servers that have "bad" apps on them
and not just office (which is what they used in every test trying to compare
Citrix on Phys hardware to Citrix on VMs) etc etc.
Basically we state that not everything should be a VM. I am ok with DCs
being on blades but maybe not in a VM. A DC on a blade is not bad, a DC that
get really utilized (Like for a 10 or 20K user domain etc) Might not be a
good idea until you have your VMware environment nailed down tight.
Most people jump in without having any processes in place and aren't even
sure of their environment. You really have got to treat VMware kinda like
Citrix and TS, On an App By App basis.
Paper can be grabbed here: http://www.vmguru.com/modules.php?name=Downloads
<http://www.vmguru.com/modules.php?name=Downloads&d_op=viewdownload&cid=1>
&d_op=viewdownload&cid=1 and the free chapter for the book (that contains
most of the info in the paper) is on Brian Madden's site www.brianmadden.com
<http://www.brianmadden.com/>
BTW, we generally rule of thumb it that 30% of any intel environment is NOT
a fit for VMware. Now I have seen higher and lower but it's a good number to
start with.
Ron Oglesby
Senior Technical Architect
Microsoft MVP, Windows Server
RapidApp, Chicago
Office 312.372.7188
Mobile 815.325.7618
email roglesby@xxxxxxxxxxxx <mailto:roglesby@xxxxxxxxxxxx>
-----Original Message-----
From: Jennifer Hooper [mailto:jennifer.hooper@xxxxxxxxxxxxx]
Sent: Wednesday, December 08, 2004 11:23 AM
To: 'thin@xxxxxxxxxxxxx'
Subject: [THIN] VMWare ESX Server
Hi Guys -
Here's the situation. We are about 1/4th of the way through converting
our production data center (full of old, out of warranty Compaq servers) to
IBM BladeCenters running VMWare ESX Server 2.0 (I think... whatever the
latest version is). We use Platespin to convert the physical server to the
VMWare image and move it over to the Blade it's going to live on. Right
now, we have an average 5 servers per blade planned, and several have
already moved over, because the hardware failed that they were on. However,
some of the application folks are uncomfortable with this solution, not so
much the Blade technology, as the VM technology. Needless to say, we're
already experiencing failures, and stuff not running right - performance
issues, network issues, etc. (Can you believe that they are going to run
our Root Domain Controllers on this?) I have already experienced a drag on
one of my Citrix servers that moved to virtual space, and can't fix it up.
So what I would like to do before things get too much more hairy, is to
try to find out what the success rate of running something like this in
production, and if there are a lot of people out there doing this. Feel
free to share with me any nightmare stories too! :)
Thanks much!
Jen
Jennifer Hooper
Peregrine Systems, Inc.
Sr. Network Engineer
mailto:jennifer.hooper@xxxxxxxxxxxxx <mailto:jennifer.hooper@xxxxxxxxxxxxx>
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