ISO Storage - Storage domain not in pool
I have an NFS ISO storage. It's active on one of the two data centers I got.
Trying to activate it gets me this error:
Storage domain not in pool
(Error code: 353)
I don't really get the error message. I have verifed that the hypervisors in that data center can reach the ISO domain host via NFS.
Where should I look? Rhevm.log on RHEV Manager doesn't really help me.
Looking in /var/log/messages on the hypervisor show this:
kernel: NFS: Cache request denied due to non-unique superblock keys