[ovirt-users] 3.6 : iSCSI LUN not detected

[Nir Soffer]

On Thu, Aug 11, 2016 at 12:27 PM, Alexis HAUSER
<alexis.hauser at telecom-bretagne.eu> wrote:
>
>> Hi Alexis
>
>> Were you able to resolve your storage LUN issue?
>
>> Regards,
>
>
>> Kevin
>
>
> I am trying the suggested solution on this post by Nir Soffer : reconnect the storage to the older hypervisor and detach it correctly...But it doesn't work :
>
> From the DC :
> 1. I set the storage (which is master data domain) to maintenance mode
> 2. I try to detach it. I get this error message :
>
>  "Error while executing action: Cannot remove the master Storage Domain from the Data Center without another active Storage Domain to take its place.
> -Either activate another Storage Domain in the Data Center, or remove the Data Center.
>
> 3. If I go in the storage domain menu, I get only the "destroy option", not "remove", which is maybe not what I want. I'd like to be able to keep the data on it.
> 4. If I try to remove the datacenter as suggested in the error message I get this error (as the hosted-engine storage is still up) :
>
> "Error while executing action: Cannot remove Data Center which contains active/locked Storage Domains.
> -Please deactivate all domains and wait for tasks to finish before removing the Data Center."
>
> 5. I can't set the hosted engine storage to maintenance
>
> What should I do ?

Yes, you cannot remove the master storage domain, so you need to create another
domain and make it the master. Then you will be able to detach the
original storage
domain properly.

Nir