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Re: [Xen-users] What can collapse all the domU????????'

To: kazabe <kazabe@xxxxxxxxx>
Subject: Re: [Xen-users] What can collapse all the domU????????'
From: "Fajar A. Nugraha" <fajar@xxxxxxxxx>
Date: Thu, 6 Aug 2009 11:11:18 +0700
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On Wed, Aug 5, 2009 at 7:23 PM, kazabe<kazabe@xxxxxxxxx> wrote:
> Hi.
> I have a dom0 running etch and 2 domU:  my webserver and mailserver.
> In the lastest 3 months i was experimenting a complete collapse in all
> the domU, forcing us to reboot the dom0 to restore the virtual
> servers.  The latest issue was at the weekend, and the company was
> without email and website for 2 days.

You didn't mention what "complete collapse" is. Is it hang? Is it
kernel panic? Is it slow response? Is it rebooting?
What does the system console (which usually is the best source of
information) say when it happens?

Sometimes the problem is as simple as a faulty external storage.

> Now my boss have some doubts about if the virtualized environments are
> really stables, and im trying to demostrate if the problem was caused
> for the some dom0 failture, or if really can exist some problem with
> my virtualitation scenarie.

Well, if you need support, sticking with vendor-supported solutions
(RHEL for example) is a good idea. They're generally better tested and
can help you in certain problems.


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