[THIN] Re: VMWare ESX

  • From: "Chris Lynch" <lynch00@xxxxxxx>
  • To: <thin@xxxxxxxxxxxxx>
  • Date: Thu, 4 Dec 2003 14:03:12 -0800

 
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Yes.  ESX is a separate component to purchase.  It's a customized version of
Red Hat Advanced Server.  As for additional hardware, you will need it.
There is a service provided my Vmware to migrated existing servers
(basically ghosting the server) into a guest VM.  It's called the Vmware P2V
Assistant (http://www.vmware.com/products/vtools/).  The new management
software to manage multiple installations of ESX in one central location is
called the Vmware VirtualCenter with VMotion
(http://www.vmware.com/products/vmanage/vc_features.html).

Microsoft has a beta version of the Connectix VirtualPC, but in an ESX-like
version (server that is, not workstation).  It's supposed to be the only
fully supported Microsoft implementation for VM (virtual machine).  I'm
about to beta it soon, and I don't think it will even come close to what ESX
is.

Chris 

- -----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf
Of Luchette, Jon
Sent: Thursday, December 04, 2003 1:50 PM
To: 'thin@xxxxxxxxxxxxx'
Subject: [THIN] Re: VMWare ESX

In terms of built-in redundancy and data recovery when used with a SAN,
VMWare would potentially allow for a major increase in server uptime,
correct?    I am mainly concerned with providing a more stable environment.
What does an actual implementation involve?  Are there actual ESX
servers/hardware that are brought in to replace already existing systems?
 
Thank you for explaining,
/jL
 
- -----Original Message-----
From: Steve Greenberg [mailto:steveg@xxxxxxxxxxxxxx]
Sent: Thursday, December 04, 2003 4:35 PM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: VMWare ESX
 
It is a technology which allows you to run a complete Operating System on
top of another Operating system. So, if you are running Windows XP, you can
launch a process which is a complete instance of Windows 2000 or LINUX, for
example. The HOST operating system sees the GUEST operating system as if it
is a program running locally while the GUEST OS "thinks" it has it's won
hardware available.
 
The ESX server product is an Enterprise version of this capability which
dedicates and optimizations a multi CPU server, i.e. 4 or 8 way Pentium, as
a platform for running multiple instances of operating systems. This is very
useful for test environments and for consolidate many servers into less
hardware. Many of our clients, for example, end up with 10 or 20 servers
that are doing very small tasks such as DHCP, licensing, hosting a specific
database or application, middleware, etc. In reality they end up maintaining
these 10 or 20 servers when they may only use a few % of their resources.
For application compatibility reasons, OS version requirements, etc. you
often cannot combine these roles. So you use VMWare ESX as a way to run all
of those functions on one server which the ability to assign RAM and
PROCESSOR to each session as needed.
 
In a Citrix context, it is a way to build a complete multi-server farm
functionally while maintaining much less hardware. In some cases the
overhead is not worth it, in others the simplification of hardware and
resource allocation outweighs any loss in raw performance.
 
Regards,
Steve Greenberg
Thin Client Computing
34522 N. Scottsdale Rd. suite D8453
Scottsdale, AZ 85262
(602) 432-8649
(602) 296-0411 fax
steveg@xxxxxxxxxxxxxx
        -----Original Message-----
        From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx]
On Behalf Of Luchette, Jon
        Sent: Thursday, December 04, 2003 1:37 PM
        To: thin@xxxxxxxxxxxxx
        Subject: [THIN] VMWare ESX
        Hey,
         
        Can somebody give me a high level overview of what VMWare is all
about?  We have been looking at moving towards a Blade server platform for
our 10 Citrix servers specifically, and I am trying to see if VMWare is
something we should look into or not.  Is it extremely expensive?  What
exactly does it allow us as administrators to do?  Is it to be used in
conjunction with Blade servers or as an alternative?  The brochures and
white papers on their website are confusing the hell out of me!
         
        Any help will be greatly appreciated.
         
        Thanks guys,
         
        /jL
         
         

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