In my lab environment I used iscsi as my shared storage. Today I have removed network adapters from software iscsi adapter to do some other networking stuff. After a while when im trying to reconfigure iscsi im getting below error
Call ïscsimanager.query candidatenics"
To resolve this problem I had to reset iscsi from esx shell by following below steps
find iscsi config locations
navigate to the iscsi config location /etc/vmware/vmkiscsid