Installed VSC4.2 on vcenter ver6 .Netapp 7-mode controllers. Unable mount existing data store ,but was able to provision new data store. Any advise would be appreciated.
vSphere 6.0 is not supported on VSC 4.2. Only VSC 6.x supports. You should upgrade VSC to 6.0 or later. You can check detailed list of supported version by IMT.