Xen users - May 2010 - a demo website to learn xen on wiki (an idea that can be tried)

Hi,
I am not very old member of this list but I keep browsing the threads.
t\Today while browsing the threads in mailing list got an idea I see
many of the questions sound similar to some thing which can be called
as clarity of terms.
I mean to say some one who may be coming to Xen wiki for the first
time may find many terms  confusing to them.
Say for example a web hosting control panel many such websites have a
demo login for their products.

How about if Xen wiki also has a demo login ( I know a live CD is there)
so that some one can log in and get through to the console on and get
him self aware of certain basic things about Xen quickly
and also probably running instances of Certain other VMs on it.


-- 
Tapas

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Tapas,
First, you can take a look at SuSE Studio (http://www.susestudio.com) which
allows you to build SuSE-based appliances and then "Test Drive" them. 
They probably are running the test drive feature in Xen VMs, so it''s
hard to say how much of a feel you''d be able to get for actually
hosting domUs via this system, but it''s worth a shot.

If that''s not what you''re looking for, you''d have to
find someone who''s willing to host such a configuration (or write an
emulator that would mimic such a configuration).  Citrix might be willing to
consider it, but they''d be more likely to do it for XenServer than for
the open source version of Xen.  One of the main issues is that you''d
essentially have to provide physical machines for this purpose, as I
don''t think Xen includes the ability to run inside itself (maybe
version 4 does - can''t remember).

-Nick
>>> On 2010/05/28 at 12:12, Tapas Mishra <mightydreams@gmail.com>
wrote:
> Hi,
> I am not very old member of this list but I keep browsing the threads.
> t\Today while browsing the threads in mailing list got an idea I see
> many of the questions sound similar to some thing which can be called
> as clarity of terms.
> I mean to say some one who may be coming to Xen wiki for the first
> time may find many terms  confusing to them.
> Say for example a web hosting control panel many such websites have a
> demo login for their products.
> 
> How about if Xen wiki also has a demo login ( I know a live CD is there)
> so that some one can log in and get through to the console on and get
> him self aware of certain basic things about Xen quickly
> and also probably running instances of Certain other VMs on it.



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On 28/05/10 22:26, Nick Couchman wrote:

One of the main issues is that you''d essentially have to provide
physical machines for this purpose, as I don''t think Xen includes the
ability to run inside itself (maybe version 4 does - can''t remember).

I have been said (to be checked) that Xen 4 could allow a Linux domU to
be considered as a dom0, and have this hierarchi:

hardware

  |

  -- Linux A dom0 

        |

        -- Linux B domU in regard of A, with sub-dom0 support

            |

            -- Linux C, domU in regard of B

With *THIS* recursion depth limitation: A(0)/B(U/0)/C(U only).

All this is only from memory, and should be checked. And is likely to
have many more limitations (in terms of CPU, motherboard, Xen version,
Linux version).

So, i just say: yes, worth searching more about this, if this is what
you want.


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On 28/05/10 22:26, Nick Couchman wrote:

One of the main issues is that you''d essentially have to provide
physical machines for this purpose, as I don''t think Xen includes the
ability to run inside itself (maybe version 4 does - can''t remember).

I have been said (to be checked) that Xen 4 could allow a Linux domU to
be considered as a dom0, and have this hierarchi:

hardware

  |

  -- Linux A dom0 

        |

        -- Linux B domU in regard of A, with sub-dom0 support

            |

            -- Linux C, domU in regard of B

With *THIS* recursion depth limitation: A(0)/B(U/0)/C(U only).

All this is only from memory, and should be checked. And is likely to
have many more limitations (in terms of CPU, motherboard, Xen version,
Linux version).

So, i just say: yes, worth searching more about this, if this is what
you want.


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Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

Thanks for the links Nick.
I am more interested to see such a screen cast or some thing like that
on Xen wiki.
Ya I can understand some one might have to donate hardware for what I said.



-- 
Tapas

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