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  1.  Home
  2. MIDRANGE-L
  3. May 2002

RE: multiple os on single pc. was When is a Windows network not a Windows network

What version of windows? If it's not W2K (and _maybe_ XP Pro) then all bets
are off. The rest stink.

The biggest disservice MS did to themselves was naming their P.O.S.
operating systems (9x and ME) the same as their good ones (NT, W2K and XP
Pro). I often hear that "windows" crashes all the time and then I hear that
it's 9x or ME.


-Walden

------------
Walden H Leverich III
President
Tech Software
(516) 627-3800 x11
(208) 692-3308 eFax
WaldenL@TechSoftInc.com
http://www.TechSoftInc.com

Quiquid latine dictum sit altum viditur.
(Whatever is said in Latin seems profound.)



-----Original Message-----
From: Weatherly, Howard [mailto:hweatherly@dlis.dla.mil]
Sent: Tuesday, May 14, 2002 08:10
To: 'midrange-l@midrange.com'
Subject: RE: multiple os on single pc. was When is a Windows network not a
Windows network


This message is in MIME format. Since your mail reader does not understand
this format, some or all of this message may not be legible.
--
[ Picked text/plain from multipart/alternative ]
I wish I had the reported up time with any Windows product that I hear
reports about, always seems like something is broken or won't work! maybe
it's those darn IBM computers I use that the OS finds fault with, or maybe I
just ask the OS to do the far to complex task of simply managing hardware
and providing a decent user interface, yup that must be it, I am far too
demanding ...

-----Original Message-----
From: Walden H. Leverich [mailto:WaldenL@TechSoftInc.com]
Sent: Monday, May 13, 2002 4:28 PM
To: 'midrange-l@midrange.com'
Subject: RE: multiple os on single pc. was When is a Windows network not a
Windows network


Along the lines of my analogy to LPAR, what happens when the controlling
LPAR goes down? When the host OS goes south the entire machine (including
VMs) go south. However, I find that doesn't happen to often (W2K).

-Walden

------------
Walden H Leverich III
President
Tech Software
(516) 627-3800 x11
(208) 692-3308 eFax
WaldenL@TechSoftInc.com
http://www.TechSoftInc.com

Quiquid latine dictum sit altum viditur.
(Whatever is said in Latin seems profound.)



-----Original Message-----
From: Weatherly, Howard [mailto:hweatherly@dlis.dla.mil]
Sent: Monday, May 13, 2002 16:21
To: 'midrange-l@midrange.com'
Subject: RE: multiple os on single pc. was When is a Windows network not a
Windows network


This message is in MIME format. Since your mail reader does not understand
this format, some or all of this message may not be legible.
--
[ Picked text/plain from multipart/alternative ]
What happens when the host system has a problem, are the virtual machines
preserved or is a major catastrophe?

-----Original Message-----
From: Walden H. Leverich [mailto:WaldenL@TechSoftInc.com]
Sent: Monday, May 13, 2002 3:47 PM
To: 'midrange-l@midrange.com'
Subject: RE: multiple os on single pc. was When is a Windows network not a
Windows network


It actually keeps the state of the OS in memory. I can run W2K as my base OS
with a WinNT and a Linux VM. The important thing to stress here is that
there is no reboot involved. The guest OS's run in a window under W2K. Think
of it as LPAR for windows. (Um, maybe you should think of LPAR as vmware for
OS/400 <G>).

When we moved to W2K (several years ago now) the payroll software that we
run wouldn't work under W2K. Normally that would necessitate either a
dual-boot system or a second box, however with VMWare I would simply boot
the NT VM when I needed to access the software. As a funny aside, the
payroll software was Java based, you know the write once run anywhere
software <G>

On final place VMWare is really cool is demos and the lab. Want to test or
demo 2 Exchange servers with a client. No problem, just boot two W2K server
VMs, start exchange in each and then run the client in the host os. Don't
expect this to be fast, but it does work.

-Walden

------------
Walden H Leverich III
President
Tech Software
(516) 627-3800 x11
(208) 692-3308 eFax
WaldenL@TechSoftInc.com
http://www.TechSoftInc.com

Quiquid latine dictum sit altum viditur.
(Whatever is said in Latin seems profound.)



-----Original Message-----
From: Vernon Hamberg [mailto:vhamberg@attbi.com]
Sent: Sunday, May 12, 2002 17:32
To: midrange-l@midrange.com
Subject: RE: multiple os on single pc. was When is a Windows network not a
Windows network


I've heard some neat things about this. Does it keep a disk copy of the
state of each OS when switching, or something like that? Are there limits on
memory and disk resources per OS? There'd certainly need to be more disk,
I'd think, and some more CPU memory to keep everything going - kinda like a
hypervisor?

At 03:59 PM 5/12/02 -0500, you wrote:
>PS:  If you need very good performance out of the vm, then partition
>magic would be better.
>

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