we can see below messages in the Coordpoint_A.log , when the resource tries to come online:
2020/03/25 00:31:53 VCS ERROR V-16-10061-680 CoordPoint:coordpoint:monitor:Error 518 returned for coordinator disk /dev/vx/rdmp/ibm_shark0_8
2020/03/25 00:31:53 VCS ERROR V-16-10061-680 CoordPoint:coordpoint:monitor:Error 518 returned for coordinator disk /dev/vx/rdmp/ibm_shark0_9
2020/03/25 00:31:53 VCS ERROR V-16-10061-685 CoordPoint:coordpoint:monitor:Some new disks have been found in the coordinator DG
The issue occurs due to a compatibility issue between VRTSvxfen (7.4.1.1900) and VRTSvcsag (7.4.1.0000)
Veritas Engineering a HF for VRTSvcsag package which needs to be installed for vxfen SG to come online.
After installing vxfen:7.4.1.1900, the Coordpoint resource fails to come online; this causes the vxfen Service group to fault.