On Wed, May 13, 2009 at 2:46 AM, Simon Hobson <linux@xxxxxxxxxxxxxxxx> wrote:
> Joe Armstrong wrote:
>
>> As for stability, I have no idea... I have heard Xen is stable, but at
>> this point I have no hard evidence of that - either for or against.
>
> I've been running a few small servers on Xen for a while now - about 6
> months. I've had a couple of unexplained guest failures*, but to be honest
> no more (probably less) than we had when they were all separate boxes.
I'm using mostly Linux PV domU for production purposes. Most guest
failures was due to not enough RAM assigned to domU which triggered
OOM killer, so it's not really Xen-specific problem.
I have one Xen domU which is up for 280 days, RHEL4 x86_64, using
custom xenified 2.6.16 kernel, from an old version of Xen (3.1, I
think). Last downtime for that domU was to extend its disk. This host
is mostly lightly-loaded, serving local yum http mirror, with high
load around midnight (doing reposync, repomanage, repotrack,
createrepo, etc.).
Another long-running domU is RHEL5 x86_64, kernel
2.6.18-92.1.13.el5xen, running Lotus Domino 8.0.1, up for 189 days.
Last downtime was for migrating to this physical host to get more
resource (cpu, disk, etc.) and upgrading domU kernel.
Recently I started using HVM Windows domU with GPLPV. The longest one
was up since Jan/31 2009, no problems so far.
Regards,
Fajar
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