[ovirt-users] Sizing the master storage domain

[Itamar Heim]

On 11/19/2014 10:50 AM, Nicolas Ecarnot wrote:
> Le 27/10/2014 10:32, Nicolas Ecarnot a écrit :
>> Le 18/09/2014 13:35, Itamar Heim a écrit :
>>>>> you should be able to move master domain to maint (deactivate, not
>>>>> detach) as well (full or empty). engine will just configure another
>>>>> storage domain as master iirc.
>>>>
>>>> This is a nice feature, but as detaching (then removing) is needed, my
>>>> question still remains.
>>>>
>>>
>>> master storage domains is a normal storage domain. it only happens to be
>>> using its "special metadata part" as the master. so all storage domains
>>> have it. if its down, engine will automatically select another one.
>>
>> Itamar, and others,
>>
>> Just a little word to explain that I've just finished to test the
>> feature you described above (automatic master storage domain switching)
>> and it is working nicely, and very quickly.
>> This is very cool and useful.
>
> Trying something very similar, but on a production setup, so I don't
> want to mess everything : Can I put a master storage domain into
> maintenance mode, when it contains some running VMs?
> Is yes, what will be the effect?
> Will it only transfer the master metadata parts to another storage
> domain, or will it also put it into read-only mode or other actions?
>
> Thank you.
>

if the running VMs are from that storage domain, it shouldn't allow you 
to move it to maintenance (I hope)