Re: [ovirt-users] 3.6 : iSCSI LUN not detected

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 : 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 ?