We are using openstack rocky. 

One of our openstack vm was running with 3 volume ,  1 is bootable and another 2 is normal volume . We have deleted 1 normal volume without properly detaching. 

So volume is deleted but instance is still showing 3 volume is attached. Now we can't snapshot the instance and facing some others issue.

Please advise how we can detach the volume(deleted) from the instance

Note: We have reset state volume attached status to detached and delete the volume. 

Regards,

Munna