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Date: Tue, 10 Jul 2007 20:45:14 -0400
From: "Lewis G Rosenthal" <os2-wireless_users@2rosenthals.com>
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Subject: [OS2Wireless] To virtualize or not... (was: Re: [OS2Wireless]
 Thinkpad T60 doesn't fare too well with eCS demo CD)

On 07/10/07 06:51 pm, Frank Vos thus wrote :
> Hello Julian,
> On Tue, 10 Jul 2007 17:30:24 -0400, Julian Thomas wrote:
>
>   
>> In <list-1255383@2rosenthals.com>, on 07/11/07 
>>   at 06:38 AM, "Ed Durrant" <os2-wireless_users@2rosenthals.com> typed:
>>
>>     
<snip>
>> I might be tempted by using Microsoft's free Virtual PC under XP or
>> Parallels under Linux.  However, I'm still leaning to a good T43.
>>     
<snip>
> So I'm thinking about a replacement system, I prefer a laptop computer
> because this enables me to work where I like. Finding a laptop that's
> working with OS/2-eCS is hard, unless I buy a (second hand) T40 or T43
> I guess. I could also buy a laptop I like and run eCS in a virtual
> machine, this way the hardware isn't a problem. 
>
> I find it hard to make a choice, so I haven't decided yet.
>
>   
Even Novell is moving toward virtualization. Open Enterprise Server 2 is 
out now, and the next "version" of NetWare will be purely virtual, 
running on top of the Linux kernel.

There are pros and cons to virtualization:

    * It's nice to be able to run several virtual servers on one piece
      of hardware;
    * It's nice to be able to reboot a virtualized OS in seconds instead
      of minutes;
    * It's nice to not have to worry about drivers for a plethora of
      OSes, and only for the base one

OTOH:

    * Virtualization tends to under perform a native implementation;
    * Memory requirements for the host and guest OS can lead to several
      constraints (running multiple virtuals on desktop - or notebook -
      hardware can be, well, virtually impossible);
    * One loses out on the stability of the guest OS in lieu of
      accepting the stability (or lack thereof) of the host (NetWare is
      an extremely stable kernel; SuSE is, as well, though I have not
      found it to be as stable as NetWare - I won't go into the
      comparisons between the Windows OS and eCS)

It's a coin toss. I guess it depends upon what hardware you really want, 
and how much time and effort would need to be expended for a native 
solution vs virtualization.

-- 
Lewis
------------------------------------------------------------
Lewis G Rosenthal, CNA, CLP, CLE
Rosenthal & Rosenthal, LLC
Accountants / Network Consultants
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Novell Users Int'l       www.novell.com/openenterpriseserver
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