[THIN] Re: VMWare ESX
- From: "Eric S. Perkins" <esp@xxxxxxxxxxxxxx>
- To: <thin@xxxxxxxxxxxxx>
- Date: Fri, 5 Dec 2003 05:50:34 -0600
I'm interested to hear about any experiences with the Microsoft
competitive product to ESX, I'm sure it won't stack up, on the first go
around but it would be nice for compatibility reasons when having to
deal with support.
-Eric S. Perkins
"performance is our passion"
Headquarters: 847.647.2430
Visit us Online: http://performance.ws
|-----Original Message-----
|From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On
|Behalf Of Chris Lynch
|Sent: Thursday, December 04, 2003 16:19
|To: thin@xxxxxxxxxxxxx
|Subject: [THIN] Re: VMWare ESX
|
|
|-----BEGIN PGP SIGNED MESSAGE-----
|Hash: SHA1
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|Exactly. When someone wants to add another service to the network,
like a
|DHCP server or WINS server, they go out an purchase something like a
PE1650
|or Proliant DL360. This is a waste of system resources.
|
|Now, image that you have two DL380's, or PE2650's, or PE6650's.
Connect to
|an external SCSI array or SAN for storage. You have ESX running on
both
|servers. One server contains a DC with DNS, the other has another DC
with
|DNS. Install a SQL server, or a MF server, or even a F&P server. You
|would
|add another guest OS and partition the host hardware to those machines.
|
|Chris
|
|- -----Original Message-----
|From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On
|Behalf
|Of Bernd Harzog
|Sent: Thursday, December 04, 2003 1:54 PM
|To: thin@xxxxxxxxxxxxx
|Subject: [THIN] Re: VMWare ESX
|
|Steve,
|
|You bring up an excellent point about using VMWare to consolidate
physical
|servers that are lightly used into a set of logical servers on one or
two
|physical boxes. That make a heck of a lot of sense, and we are seeing
quite
|a few of our customers go down this road.
|
|What we have not seen that much of, and what your point about overhead
|brings up, is people taking relatively heavily loaded dual CPU Citrix
|servers and collapsing them into quads, eight-ways, or even larger
|machines.
|The reason that I think we have not seen this is that people perceive
that
|the overhead of VMware means that you end up with fewer concurrent
users on
|two VM's on a quad, then you would with two separate dual CPU servers.
|
|I am wondering if anyone can verify what we are seeing in our customer
|base,
|or if anyone has different experiences.
|
|By way of a TScale plug, we have customers running TScale inside of
their
|VMware partitions so as to get more scalability and performance inside
of
|those partitions. It actually works quite well.
|
|Cheers,
|
|Bernd Harzog
|CEO
|RTO Software, Inc.
|bernd.harzog@xxxxxxxxxxx
|678-455-5506 x701
|www.rtosoft.com <http://www.rtosoft.com/>
|
|- -----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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|
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