Hi all:
Currently I get into a situation with a NFS data center which maintained both hosts and storage domains.
Now if I first activate host then SD, everything works fine. But if I mistakenly first activate SD, the data center gets into a non responsive status, after this if I try to activate a host, it will get into a non operational state, it seems I can't find a way to get the DC running again.
I think a additional check should be done before activate a SD, and i've uploaded a patch for a solution of this issue: http://gerrit.ovirt.org/17940
I haven't test with other storage types, but activating a SD need a functioning host, right? correct me if i'm wrong :)

Best regards,