Hello, sometimes the volume retype from a netapp nfs storage to another netapp nfs storage does not work. I do not know the reason but I think something is going wrong in nova: /var/log/nova/nova-compute.log:2022-02-02 14:23:39.992 194288 ERROR root [req-ebbf749f-359f-4282-94c5-0913cffe97a3 66adb965bef64eaaab2af93ade87e2ca 68feefdf7c5847388534e9214dc13366 - default default] Original exception being dropped: ['Traceback (most recent call last):\n', ' File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 5655, in _swap_volume\n mountpoint, resize_to)\n', ' File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 1647, in swap_volume\n self._disconnect_volume(context, new_connection_info, instance)\n', ' File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__\n self.force_reraise()\n', ' File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise\n six.reraise(self.type_, self.value, self.tb)\n', ' File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 1644, in swap_volume\n self._swap_volume(guest, disk_dev, conf, resize_to)\n', ' File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 1593, in _swap_volume\n raise exception.VolumeRebaseFailed(reason=six.text_type(exc))\n', "VolumeRebaseFailed: Volume rebase failed: Requested operation is not valid: pivot of disk 'vda' requires an active copy job\n"]: VolumeAttachmentNotFound: Volume attachment 2cd820e0-85e8-498d-a62a-800260d0cf31 could not be found Must I try to change some parameters in nova.conf on compute nodes about volume attachment ? Thanks Ignazio