Just an idea, but could this be related to stale mounts from when you rebooted the storage?  Please try the following:
  1. Place all nodes into maintenance mode
  2. Disable the ovirt NFS exports
    1. Comment out lines in /etc/exports
    2. exportfs -r
  3. Reboot your nodes
  4. Re-enable the ovirt NFS exports
  5. Activate your nodes


On Wed, May 31, 2017 at 10:04 AM, Moritz Baumann <moritz.baumann@inf.ethz.ch> wrote:
I found some info on how to import an abandomed export domain

https://www.ovirt.org/documentation/how-to/storage/clear-the-storage-domain-pool-config-of-an-exported-nfs-domain/

would the same (empty POOL_UUID and SHA_CKSUM in metadata) allow me to import the data domain as a new one (and keep the existing vms) ?



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Adam Litke