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Re: Xen 4+ vs. Xen 3 (Was Re: [Xen-users] active list?)

To: Todd Deshane <todd.deshane@xxxxxxx>
Subject: Re: Xen 4+ vs. Xen 3 (Was Re: [Xen-users] active list?)
From: Randy Katz <rkatz@xxxxxxxxxxxxxxxxxxxxx>
Date: Sun, 01 May 2011 19:47:17 -0700
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Yeah, I read 2 of the 3 already. I just manually created the xenbr0
and it doesn't seem to make a difference with my install of the domU.
Perhaps someone can read this and comment?


On 5/1/2011 6:43 PM, Todd Deshane wrote:
On 5/1/2011 11:25 AM, Todd Deshane wrote:
On Sun, May 1, 2011 at 4:41 PM, Randy Katz<rkatz@xxxxxxxxxxxxxxxxxxxxx>  wrote:
Hi Todd,

Hi Randy,

This is a great question for the list.

Here is some information on Xen 4.1 in case you haven't seen it yet.

Maybe others can comment on what they are using based on your questions below?

Life on the list! Amazing, thanks! That link is a very good doc! Perhaps
I should be using Fedora rather then trying to do it on CentOS. With CentOS
I can do everything in stock Xen 3, but when I try Xen 4 (using the gitco.de 
and trying to install the domU (from CentOS 5.5/5.6 repo) I get hangs after the 
(or during) boot, graphic, non-graphic, anything I try. It looks like that 
might not be
the case with Fedora, though they are using 4.0.1 rather then 4.1.

Which brings me to my main set of questions:

Is Xen 4 being used in production at all at this time?
What features are new in Xen 4 that are being used in production?
If nothing and everything can be done with Xen 3 then it looks like I
might try to stick there for a while longer.

What I want to accomplish is this:

2 test machines running any Linux Distro, DRBD for resilient disk serving
either iSCSI, OCF or any other method with Xen VM's (of any template flavor)
that are configured in either active/active or active/passive with failover for
a common VIP.

So if you have a pointer to the best dom0 distro and domU distro to sort this
out on that would be great. I would love to be able to have my dom0 CentOS as
that is the base on all my production machines, but I am not stuck there.

Thank you in advance,
Randy Katz

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