[ovirt-users] Moving Hosted Engine NFS storage domain
Simone Tiraboschi
stirabos at redhat.com
Fri Jun 3 08:26:12 UTC 2016
On Thu, Jun 2, 2016 at 5:33 PM, Beard Lionel (BOSTON-STORAGE)
<lbeard at cls.fr> wrote:
> Hi,
>
>
>
> I have tried these steps :
>
> - Stop Hosted VM
>
> - # vdsClient -s localhost forcedDetachStorageDomain
> <hosted_storage domain>
>
> - Domain is now detached
>
> - # hosted-storage –clean-metadata
>
> - # hosted-storage –vm-start
>
>
>
> But, hosted domain path is still the old one.
>
> If I run :
>
> # vdsClient -s localhost getStorageDomainsList <hosted_storage domain>
>
> The path is correct !!
>
>
>
> So I don’t know where the wrong path is stored.
If the engine imported the hosted-engine storage domain in the past,
that storage domain is in the engine DB with the wrong path.
If you bring down everything and reboot your hosts, ovirt-ha-agent
will mount the hosted-engine-storage domain with the new path under
hosted-engine.conf.
At this point ovirt-ha-agent can start the engine VM. When the engine
will come up it will try to mount all the storage domain in the
datacenter as for regular hosts. This will mean that it will try to
remount also the hosted-engine storage domain (cause the domain uuid
is the same!) from the old path since it's still configured like that
in the engine DB.
> I think the only way is to reinstall Hosted VM from scratch.
You can try to manually force a new path in the DB.
> @ Staniforth Paul, your procedure is not working L
>
>
>
> Regards,
>
> Lionel BEARD
>
>
>
> De : Beard Lionel (BOSTON-STORAGE)
> Envoyé : mercredi 1 juin 2016 22:26
> À : 'Roy Golan' <rgolan at redhat.com>
> Cc : Roman Mohr <rmohr at redhat.com>; users <users at ovirt.org>
> Objet : RE: [ovirt-users] Moving Hosted Engine NFS storage domain
>
>
>
> Hi,
>
>
>
> Path is neither shared not mounted anymore on previous NFS server, but
> storage domain is still up and cannot be removed…
>
>
>
> Is there a possibility to remove it from command line ?
>
>
>
> Regards,
>
> Lionel BEARD
>
>
>
> De : Roy Golan [mailto:rgolan at redhat.com]
> Envoyé : mercredi 1 juin 2016 20:57
> À : Beard Lionel (BOSTON-STORAGE) <lbeard at cls.fr>
> Cc : Roman Mohr <rmohr at redhat.com>; users <users at ovirt.org>
>
>
> Objet : Re: [ovirt-users] Moving Hosted Engine NFS storage domain
>
>
>
>
> On Jun 1, 2016 7:19 PM, "Beard Lionel (BOSTON-STORAGE)" <lbeard at cls.fr>
> wrote:
>>
>> Hi,
>>
>> I am not able to do that, "Remove" button is greyed.
>> And it is not possible to place it into maintenance mode because hosted VM
>> is running on it...
>>
>> Any clue?
>>
>
> You must create a situation where vdsm would fail to monitor that domain.
> I.e stop sharing that path or block it and then the status will allow you to
> force remove
>
>> Thanks.
>>
>> Regards,
>> Lionel BEARD
>>
>> > -----Message d'origine-----
>> > De : Roman Mohr [mailto:rmohr at redhat.com]
>> > Envoyé : mercredi 1 juin 2016 14:43
>> > À : Beard Lionel (BOSTON-STORAGE) <lbeard at cls.fr>
>> > Cc : Staniforth, Paul <P.Staniforth at leedsbeckett.ac.uk>; users at ovirt.org
>> > Objet : Re: [ovirt-users] Moving Hosted Engine NFS storage domain
>> >
>> > On Wed, Jun 1, 2016 at 2:40 PM, Beard Lionel (BOSTON-STORAGE)
>> > <lbeard at cls.fr> wrote:
>> > > Hi,
>> > >
>> > >
>> > >
>> > > I have followed these steps :
>> > >
>> > >
>> > >
>> > > - Stop supervdsmd + vdsmd + ovirt-ha-agent + ovirt-ha-broker
>> > >
>> > > - Modify config file
>> > >
>> > > - Copy files (cp better handles sparse files than rsync)
>> > >
>> > > - Umount old hosted-engine path
>> > >
>> > > - Restart services
>> > >
>> > > - Hosted VM doesn’t start => hosted-engine –clean-metadata. I
>> > > get
>> > > an error at the end, but now I am able to start Hosted VM :
>> > >
>> > > o
>> > ERROR:ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine:Metad
>> > ata
>> > > for current host missing.
>> > >
>> > >
>> > >
>> > > I can connect to oVirt interface, everything seems to be working fine,
>> > > but the Hosted storage domain has an incorrect path, it is still
>> > > pointing to old one… I think this information is not correctly
>> > > reported by web interface, because this path doesn’t exist anymore,
>> > > and
>> > hosted VM is working !
>> > >
>> > > Does anyone knows how to fix that ?
>> >
>> > You have to do a "force remove" in the UI (without clicking the destroy
>> > checkbox) of that storage. Then it should be reimported automatically.
>> >
>> > >
>> > >
>> > >
>> > > Regards,
>> > >
>> > > Lionel BEARD
>> > >
>> > >
>> > >
>> > > De : Beard Lionel (BOSTON-STORAGE)
>> > > Envoyé : mercredi 1 juin 2016 10:37
>> > > À : 'Staniforth, Paul' <P.Staniforth at leedsbeckett.ac.uk>;
>> > > users at ovirt.org Objet : RE: Moving Hosted Engine NFS storage domain
>> > >
>> > >
>> > >
>> > > Hi,
>> > >
>> > >
>> > >
>> > > I’m trying to move Hosted storage from one NFS server to another.
>> > >
>> > > As this is not a production environment, so I gave a try with no
>> > > success, with a plan similar to yours.
>> > >
>> > >
>> > >
>> > > But I don’t like to stay on a failure, so I will give a second chance
>> > > by following your plan J
>> > >
>> > >
>> > >
>> > > Regards,
>> > >
>> > > Lionel BEARD
>> > >
>> > >
>> > >
>> > > De : users-bounces at ovirt.org [mailto:users-bounces at ovirt.org] De la
>> > > part de Staniforth, Paul Envoyé : mardi 31 mai 2016 13:33 À :
>> > > users at ovirt.org Objet : [ovirt-users] Moving Hosted Engine NFS storage
>> > > domain
>> > >
>> > >
>> > >
>> > > Hello,
>> > >
>> > > we would like to move our NFS storage used for the
>> > > HostedEngine.
>> > >
>> > >
>> > >
>> > > Plan would be
>> > >
>> > > enable global maintenance
>> > > shut-down HostedEngine VM
>> > > edit /etc/ovirt-hosted-engine/hosted-engine.conf on hosts
>> > >
>> > > storage=newnfs:/newnfsvolume
>> > >
>> > > copy storage domain from old to new nfs server start HostedEngine VM
>> > > run engine-setup on HostedEngine VM disable global maintenance
>> > >
>> > > Has anyone had any experience doing this?
>> > >
>> > > Have I missed any steps out
>> > >
>> > > we are currently running oVirt 3.6.2
>> > >
>> > >
>> > >
>> > > Thanks,
>> > >
>> > > Paul S.
>> > >
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> à l'intention exclusive de ses destinataires et sont confidentiels. Si vous
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> détruire ainsi que toute copie de votre système et d'en avertir
> immédiatement l'expéditeur. Toute lecture non autorisée, toute utilisation
> de ce message qui n'est pas conforme à sa destination, toute diffusion ou
> toute publication, totale ou partielle, est interdite. L'Internet ne
> permettant pas d'assurer l'intégrité de ce message électronique susceptible
> d'altération, l’expéditeur (et ses filiales) décline(nt) toute
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> intended recipient(s) and is confidential. If you receive this message in
> error, or are not the intended recipient(s), please delete it and any copies
> from your systems and immediately notify the sender. Any unauthorized view,
> use that does not comply with its purpose, dissemination or disclosure,
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