Re: [Xen-users] RE: Does it legal to analysize XEN source code and write a book about it

[Tao Shen <taoshen1983@xxxxxxxxx>]

I see that great values exist in Xen and virtualization. That's why I am 
here, on the list.  From a practical perspective, I don't see that 
XenSource's triple segregation of their product into Express, Server, 
Enterprise makes any sense from a revenue maximization perspective.  For 
serious users who depend on Xen(Amazon EC2) they will be paying the 
support contracts but still cheaper than VMware Infrastructure.  
Software license isn't even considered cost for them.  For semi-serious 
business users, currently Xen is on par in cost compared to VMware.   
For enthusiasts, you are stuck to Xen + Virt-manger on a stock Linux 
distro.  Quite frankly, Xen Express doesn't cut it.  So in the end, the 
only competitive advantage for Xen branded product is centered on Xen 
Enterprise for the VPS hosts.  XenSource is severely decapitating their 
potential revenue stream.
gosh i just lost another 30 minutes....got to go...30 minute naps will 
hurt for the day :) later

Tim Post wrote:
> On Mon, 2007-09-17 at 12:50 +0100, Nico Kadel-Garcia wrote:
>   
> > Tao Shen wrote:
> >     
> > > 7.  Some of the examples in the open source industry right now 
> > > include:  using PostgreSQL based code which is GPL'd, add a non-GPL'd 
> > > replication suite to it, and call it enterpriseDB.  Using PostgreSQL 
> > > based code, tweak some variables, add some non-GPL'd code (interfaced 
> > > to the GPL'd one) to do distributed join and call it "bizgres" and 
> > > "greenplum".   MySQL's Enterprise vs Community editions....the 
> > > examples are all other the place.  All of them push the GPL boundary 
> > > but don't violate it.    And what I call the "wrapper GPL" type 
> > > products, and "dual licensing".  No, it's all perfect legal.   From an 
> > > ethics perspective...it's arguable.
> > >       
> I think you have to look at things in a relative way. Relative to most
> other commercial software companies, XenSource is a saint. I'm running
> GNU/XenLinux on my desktop, if I had this developed myself, I would have
> spent millions on it. XenSource pushed Xen, hard. XenSource is what
> ensured Xen held up to critics. XenSource ensured that Xen got its
> market share that it enjoys today.
>
> This puts money in my pocket in a few ways :
>
> 1 - I'm paid to build xen stuff for web hosts
> 2 - I'm paid to design networks that rely heavily on Xen
> 3 - I'm able to give non profits cutting edge technology for free (I
> don't charge them)
> 4 - I learned A LOT studying Xen, reading xen-devel and the Xen academic
> papers. I'm a much better programmer than I was after studying Xen.
> 5 - Microkernels are now being looked at in a new light, because of Xen
> (broadly). This means, hardware makers are finally waking up to the fact
> that they _CAN_ reach beyond x86. This means new technology and new
> opportunities.
>
> What does Microsoft give you? What does Cisco give you? What does
> NetGear give you?
>
> First, Xen was made. Then XenSource made some neat programs to go with
> it that cost money. In order to imply something sinister, you would
> first have to demonstrate that XenSource knew how successful Xen (as a
> whole) would be. I don't think that's possible, because I don't think
> that they realized it until it smacked them. Please speak in proper time
> and context.
>
> As Nico said, look at RHEL. Look at the Novell-Microsoft deal, look at
> so many other things in the news as current events, then go enjoy your
> multi million dollar free hypervisor and command line tools ;)
>
> If there is a time for paranoia, this is not that time.
>
> Kindly,
> --Tim
>
>
>
>   

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