Hi, In my environment I have created an RBD (ceph) pool as follows: <pool type='rbd'> <name>vdic-mgmt-pool</name> <uuid>58d9aab0-85cc-4dcf-884e-86349db38e96</uuid> <capacity unit='bytes'>42843746304</capacity> <allocation unit='bytes'>0</allocation> <available unit='bytes'>41737977856</available> <source> <host name='vdicnode01.local' port='6789'/> <name>vdicmgmtpool</name> <auth type='ceph' username='libvirt'> <secret uuid='3289cb24-0032-49d8-b377-c86d04b800b0'/> </auth> </source> </pool> virsh pool-define vdic-mgmt-pool.xml virsh pool-autostart vdic-mgmt-pool Note: I've tried with username='libvirt' and also username='admin' But I'm not able to start-up the storage pool: [root@vdicnode01 ceph]# virsh pool-start vdic-mgmt-pool error: Failed to start pool vdic-mgmt-pool error: An error occurred, but the cause is unknown I attach the full log (in debug mode): https://paste.fedoraproject.org/paste/KD5TnWdKfB6o9a8AutI4qg Any help will be welcome! Thanks a lot everybody!