VxVM vxdg Error - cannot be added to a CDS disk group ERROR V-5-1-6478

Issue

Not able to add a disk on shared disk group.
VxVM vxdg ERROR V-5-1-6478 Device disk_1 cannot be added to a CDS disk group


Solution:

You are not executing command on master node !

- Find which node is mater node
vxdctl -c mode

- Initialize disk
vxdisksetup -i disk_1

- Add disk is diskgroup

vxdg -g diskgroup_name adddisk   a_good_disk_name=disk_1


Isn't simple ?