[ovirt-users] Slow Export Domain

[Yaniv Kaul]

You can change the mount options of the storage domain to v4.
Y.

On Wed, Jun 22, 2016 at 3:26 PM, Sven Achtelik <Sven.Achtelik at mailpool.us>
wrote:

> Hi,
>
>
>
> I’ve done some testing and it turns out that my NFS-Server seems to be the
> limiting factor in combination with the used NFS version. The Server is a
> Windows Server 2012 R2 with “Service for Network File System” installed. I
> mounted the share from ovrit with the default nfs version 3 and it work but
> not more than 100Mbit/s and I don’t know why. When mounting the share on
> the host manually like so “mount –t nfs4 –o minorversion=1 172.16.6.7:/test
> /mnt/test/” I was able to get to about 400Mbit/s. It’s still far away from
> full speed  but that’s ok for me. I tried to change the NFS version in
> ovirt to V4, but with these settings the mount fails. It has to be NFS4.1 –
> can that be done over the GUI somehow or are there any other options ?
>
>
>
> Thank you,
>
>
>
> Sven
>
>
>
> *Von:* Vinzenz Feenstra [mailto:vfeenstr at redhat.com]
> *Gesendet:* Mittwoch, 22. Juni 2016 12:40
> *An:* Christophe TREFOIS <christophe.trefois at uni.lu>
> *Cc:* Sven Achtelik <Sven.Achtelik at mailpool.us>; users at ovirt.org
> *Betreff:* Re: [ovirt-users] Slow Export Domain
>
>
>
>
>
> On Jun 22, 2016, at 12:31 PM, Christophe TREFOIS <
> christophe.trefois at uni.lu> wrote:
>
>
>
> Not true, we have seen significant slowness because of the way oVirt
> exports the VMs, as well as I/O.
>
>
>
> Well all I wanted to say with this is, that there is no artificial
> limitation of the speed. At least not that I know of, if there’s an issue
> with the speed which is caused by a software issue on our side please do
> report a bug.
>
>
>
>
>
> Best,
>
> *Dr Christophe Trefois, Dipl.-Ing.*
> Technical Specialist / Post-Doc
>
> *UNIVERSITÉ DU LUXEMBOURG*
>
> *LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE*
> Campus Belval | House of Biomedicine
> 6, avenue du Swing
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>
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>
> On 22 Jun 2016, at 10:07, Vinzenz Feenstra <vfeenstr at redhat.com> wrote:
>
>
>
>
>
> On Jun 22, 2016, at 9:39 AM, Sven Achtelik <Sven.Achtelik at mailpool.us>
> wrote:
>
>
>
> Hi Everyone,
>
>
>
> I’m trying to export VMs to an Export Domain for Backup and noticed that
> all of this is running at max 100Mbit/s. Is this some limitation that comes
> with the Export Domain ? I’ve checked all network connections and all of
> them report at least 1000Mbits/s.  Am I missing something ?
>
>
>
> So from our side there’s no limitation. So there might be a router, switch
> or anything in between that does not support 1 GBit on your network. You’re
> really just limited here by Storage and/or Network bandwith.
>
>
>
>
>
> Thank you,
>
>
>
> Sven
>
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