+1 to Adding a "Make Master Storage Domain Button" ;-)
On Thu, Aug 15, 2013 at 11:09 AM, Liron Aravot <[email protected]> wrote: > > > ----- Original Message ----- > > From: "Dead Horse" <[email protected]> > > To: "Itamar Heim" <[email protected]> > > Cc: "<[email protected]>" <[email protected]> > > Sent: Thursday, August 15, 2013 6:46:00 PM > > Subject: Re: [Users] Designate Master Storage Domain > > > > Itamar this is true (I have noted occasional timing issues with it > actually > > working). > > But what if as the administrator I have a specific storage domain in mind > > that I would like to have become the master (in the case of more then > two)? > > In that case - you could reinitialize the pool using unattached domain > (you chose which one) - this domain will become the new master. > 1. Create new unattached domain/Detach the domain that you want to be the > master from the pool (if possible) > 2. Move all the pool domain to maintenance (the master should be put to > maintenance last to avoid reconstructing to another domain). > 3. Right click on the data center, chose reinitialize storage pool - you > can chose which domain do you want to be the master from the unattached > domains. > > The other option is manual db intervention :) > Possibly we could add a possibility to manually change the master domain, > same as was added for the spm ("Make SPM" button that was added recently). > > > > > > @Karli > > The idea is not to not have to shut down all the VM's or the engine just > to > > maintenance a storage domain(s) that may happen to be on disparate > storage > > servers > > . > > - DHC > > > > > > On Thu, Aug 15, 2013 at 9:37 AM, Itamar Heim < [email protected] > wrote: > > > > > > > > On 08/15/2013 06:18 AM, Dead Horse wrote: > > > > > > > > Is there any method of designating which domain should be the master > > storage domain or forcibly changing the role to a different storage > domain? > > > > EG: Given the following example > > > > Storage Domain A (Master) --> NFS --> Storage Server 1 > > Storage Domain B --> NFS --> Storage Server 2 > > > > One wants to do maintenance to Storage Server 1 but in doing so the > > Master storage domain is hosted from Storage Server 1. Thus the net > > result of taking down Storage Server 1 is that one must also take down > > Storage Server 2. > > > > Thus we know we must shut down VM's from Storage Domain A to maintenance > > Storage Server 1. Suppose however that VM's are running that we don't > > want to shut down and are hosted from Storage Domain B via Storage > Server 2. > > > > We would want to be able to promote Storage Domain B to Master so that > > we can take down Storage Domain A to do maintenance to Storage Server 1. > > > > Once we are done with maintenance to Storage Server 1 we can bring > > Storage Domain A back on line, re-designate it as Master if desired and > > bring it's VM's back online. > > > > I know I have seen this occur automatically to a point when a Storage > > Domain goes missing that is the Master Domain but I have not noted any > > manual method of doing so given the above scenario. > > > > - DHC > > > > > > ______________________________ _________________ > > Users mailing list > > [email protected] > > http://lists.ovirt.org/ mailman/listinfo/users > > > > > > my understanding is you can move the storage domain A which is master to > > maint. engine will promote storage domain B to master and everything > should > > continue working as is. > > > > > > _______________________________________________ > > Users mailing list > > [email protected] > > http://lists.ovirt.org/mailman/listinfo/users > > >
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