Re: [Xen-users] About the limitation of "Physical RAM" to active guestVMs

[Mark Williamson <mark.williamson@xxxxxxxxxxxx>]

If you use an Open Source implementation of Xen then you'll be able to use all 
the RAM, but you won't get the XenEnterprise user interface.  You might be 
able to get some other frontend such as Enomalism working with it.

Main advantage of the XenSource products is to make the management of the 
machine less hassle, improve the performance of Windows guests, etc.  If 
you're prepared to get your hands a bit more dirty (and even more especially 
if you're mainly virtualising Linux) then the open source Xen should actually 
be quite a good fit.

Cheers,
Mark

On Wednesday 08 August 2007, Kilburn, Preston wrote:
> The trick is to purchase it afaik.
>
>
>
> Express is limited to 4g/4vm/single socket I believe.
>
>
>
> All things being equal, it's a pretty cheap piece of software for what
> it does and saves on hardware costs.
>
> ><Preston>
>
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of jowkju
> Sent: Wednesday, August 08, 2007 8:25 AM
> To: xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-users] About the limitation of "Physical RAM" to active
> guestVMs
>
>
>
> Hi,
>
>
>
> While I was using the XenExpress Version, I found that at most the only
> 4096MB of RAM can be allocated to active guest VMs.
>
> Not to "a" guest VM, but to guest VM"s". I knew it when I tried to
> install a new VM while a VM of 4090MB RAM was running.
>
>
>
> my system has 16GB of physical RAM. Then, If I use Xen on my system, I
> should waste the rest 12GB of Physical RAM??
>
> Is there any trick that active guest VMs can use more than 4GB of
> physical RAM?? (Except to buy a XenEnterprise or XenServer...)
>
>
>
> Thank you.



-- 
Dave: Just a question. What use is a unicyle with no seat?  And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!

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