[THIN] Re: VMWare ESX Server
- From: "Joe Shonk" <joe@xxxxxxxxxxxxxxxxxxx>
- To: <thin@xxxxxxxxxxxxx>
- Date: Wed, 8 Dec 2004 21:18:07 -0700
Are you using the vmxnet or vlance driver?
Did you disable the COM ports in the BIOS of the citrix server?
Are you using the buslogic or lsilogic scsi driver?
Have you setup vmkusage?
Are you running 2.1.2? older version? vSMP and/or Hyperthreading?
Are you over subscribing the Host memory? If so, are you seeing a lot of
disk i/o relating to swap file?
Are you backending the VM to a SAN? Or are the .dsk/.vmdk files on the
blade?
Have you configures shares, mins and max for resources?
Have you evaluate the workloads for each VM on the host? Are they a good
fit for that host?
Have the servers been optimized? Tweaked?
I've run into skepticism of running on VM. This is generally because it's
an unknown technology to them. Just because they don't understand it doesn't
mean it doesn't work.. Just like Citrix.
Could the failures be because the servers are misconfigured or setup poorly?
Joe
_____
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf
Of Jennifer Hooper
Sent: Wednesday, December 08, 2004 10:23 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
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