[ovirt-users] Remove Master Data Domain in oVirt 3.5.0

[Itamar Heim]

On 01/20/2015 03:54 PM, s k wrote:
> I created a new Data Domain (detached from all the DCs) and clicked
> on 'Re-Initialize Data Center'.
>
>
> Now I'm able to select this Data Domain as the new Master. However when
> I select it and click OK I get the following error:
>
>
> Error while executing action: Cannot recover Data Center Storage.
> The relevant Storage Domain's status is Active.

as i said earlier, re-init DC is for emergency flow when your DC is down.
that's not your case.
you just need to deactivate the domain you don't want to be the master 
domain (deactivate, not detach. you can probably detach if a 3.5 DC, 
since it support re-attach. in <3.5 DC levels detach means "remove all 
disks/VMs from that domain".

>
>  > Date: Mon, 19 Jan 2015 17:28:06 +0200
>  > From: iheim at redhat.com
>  > To: sokratis123k at outlook.com; mburman at redhat.com
>  > CC: users at ovirt.org
>  > Subject: Re: [ovirt-users] Remove Master Data Domain in oVirt 3.5.0
>  >
>  > On 01/19/2015 04:05 PM, s k wrote:
>  > > No, all the Storage Domains are attached,they are active and have VMs
>  > > running on the same DC.
>  >
>  > re-init DC is for emergency after you lost all your SD's and allows you
>  > to choose a data domain not yet attached to any DC.
>  > just deactivate the domains you won't won't to be master domains and
>  > engine will elect another domain as master.
>  >
>  > >
>  > > > Date: Mon, 19 Jan 2015 08:01:16 -0500
>  > > > From: mburman at redhat.com
>  > > > To: sokratis123k at outlook.com
>  > > > CC: users at ovirt.org
>  > > > Subject: Re: [ovirt-users] Remove Master Data Domain in oVirt 3.5.0
>  > > >
>  > > > So that means you have configured your other storage domains under
>  > > another DC, but you haven't configured them on the relevant DC, cause
>  > > 'There are no compatible Storage Domains to attach to this Data Center'
>  > > > Or they are Detached from DC.
>  > > >
>  > > > ----- Original Message -----
>  > > > From: "s k" <sokratis123k at outlook.com>
>  > > > To: "Michael Burman" <mburman at redhat.com>
>  > > > Cc: users at ovirt.org
>  > > > Sent: Monday, January 19, 2015 2:32:10 PM
>  > > > Subject: RE: [ovirt-users] Remove Master Data Domain in oVirt 3.5.0
>  > > >
>  > > > When I click on 'Re-Initialize Data Center' I get the following
> message:
>  > > > There are no compatible Storage Domains to attach to this Data
>  > > Center. Please add new Storage from the Storage tab.
>  > > >
>  > > > > Date: Mon, 19 Jan 2015 07:02:28 -0500
>  > > > > From: mburman at redhat.com
>  > > > > To: sokratis123k at outlook.com
>  > > > > CC: users at ovirt.org
>  > > > > Subject: Re: [ovirt-users] Remove Master Data Domain in oVirt 3.5.0
>  > > > >
>  > > > > Hi Sokratis,
>  > > > >
>  > > > > You can go to Data Center main tab, choose relevant DC, click right
>  > > click on the DC, choose 'Re-Initialize Data Center', in this window you
>  > > can choose another compatible Storage Domain and choose him to be your
>  > > master Data Storage Domain.
>  > > > >
>  > > > > Michael B
>  > > > >
>  > > > > ----- Original Message -----
>  > > > > From: "s k" <sokratis123k at outlook.com>
>  > > > > To: users at ovirt.org
>  > > > > Sent: Monday, January 19, 2015 1:06:08 PM
>  > > > > Subject: [ovirt-users] Remove Master Data Domain in oVirt 3.5.0
>  > > > >
>  > > > > Hello,
>  > > > >
>  > > > >
>  > > > > I would like to remove the Master Data Domain because I need to
>  > > decommission the underlying storage device.
>  > > > >
>  > > > >
>  > > > > Is there a way to manually change the Master Data Domain? Will the
>  > > Master Data Domain be reassigned automatically when the current one is
>  > > deleted?
>  > > > >
>  > > > >
>  > > > > Thank you,
>  > > > >
>  > > > >
>  > > > > Sokratis
>  > > > >
>  > > > > _______________________________________________
>  > > > > Users mailing list
>  > > > > Users at ovirt.org
>  > > > > http://lists.ovirt.org/mailman/listinfo/users
>  > > > >
>  > > > > --
>  > > > > Michael Burman
>  > > > > Intern in RedHat Israel, RHEV-M QE Network Team
>  > > > >
>  > > > > Mobile: 054-5355725
>  > > > > IRC: mburman
>  > > >
>  > > >
>  > > > --
>  > > > Michael Burman
>  > > > Intern in RedHat Israel, RHEV-M QE Network Team
>  > > >
>  > > > Mobile: 054-5355725
>  > > > IRC: mburman
>  > >
>  > >
>  > > _______________________________________________
>  > > Users mailing list
>  > > Users at ovirt.org
>  > > http://lists.ovirt.org/mailman/listinfo/users
>  > >
>  >