Unable to enable cloud unit and cloud unit remains disconnected

Cloud unit state shows disconnected even though the cloud profile is accessible.

# cloud unit list
Name                     Profile               Status
-------------          -----------------     -------------------
ECSCCA_DD    Cloud_Profile    Disconnected
-------------          -----------------      -------------------

Cloud provider verify succeeds.

There is not enough space in the Cloud.

From Messages.Engineering:

Jan 31 13:05:22 Datadomain02c ddfs[31242]: INFO: Event marked for clearing; cannot post until cleared: m0-2875: EVT-CLOUD-00001: Unable to access provider for cloud unit ECSCCA_DD.EVT-OBJ::CloudUnit=ECSCCA_DD EVT-INFO::Cause=The server cannot process the request because there is not enough space on disk
Jan 31 13:20:02 Datadomain02c ddfs[31242]: INFO: Event posted: m0-2876 (21000b3c:553651004): EVT-CLOUD-00001: Unable to access provider for cloud unit ECSCCA_DD.EVT-OBJ::CloudUnit=ECSCCA_DD EVT-INFO::Cause=The server cannot process the request because there is not enough space on disk
Jan 31 13:34:59 Datadomain02c ddfs[31242]: INFO: Event cleared: m0-2876 (21000b3c:553651004): EVT-CLOUD-00001: Unable to access provider for cloud unit ECSCCA_DD.EVT-OBJ::CloudUnit=ECSCCA_DD EVT-INFO::Cause=I/O ERROR
Jan 31 13:34:59 Datadomain02c ddfs[31242]: INFO: Event marked for clearing; cannot post until cleared: m0-2876: EVT-CLOUD-00001: Unable to access provider for cloud unit ECSCCA_DD.EVT-OBJ::CloudUnit=ECSCCA_DD EVT-INFO::Cause=The server cannot process the request because there is not enough space on disk
Jan 31 13:50:10 Datadomain02c ddfs[31242]: INFO: Event posted: m0-2877 (21000b3d:553651005): EVT-CLOUD-00001: Unable to access provider for cloud unit ECSCCA_DD.EVT-OBJ::CloudUnit=ECSCCA_DD EVT-INFO::Cause=The server cannot process the request because there is not enough space on disk
Jan 31 14:04:59 Datadomain02c ddfs[31242]: INFO: Event cleared: m0-2877 (21000b3d:553651005): EVT-CLOUD-00001: Unable to access provider for cloud unit ECSCCA_DD.EVT-OBJ::CloudUnit=ECSCCA_DD EVT-INFO::Cause=I/O ERROR
Jan 31 14:05:01 Datadomain02c ddfs[31242]: INFO: Event marked for clearing; cannot post until cleared: m0-2877: EVT-CLOUD-00001: Unable to access provider for cloud unit ECSCCA_DD.EVT-OBJ::CloudUnit=ECSCCA_DD EVT-INFO::Cause=The server cannot process the request because there is not enough space on disk
Jan 31 14:20:02 Datadomain02c ddfs[31242]: INFO: Event posted: m0-2878 (21000b3e:553651006): EVT-CLOUD-00001: Unable to access provider for cloud unit ECSCCA_DD.EVT-OBJ::CloudUnit=ECSCCA_DD EVT-INFO::Cause=The server cannot process the request because there is not enough space on disk
Jan 31 14:34:59 Datadomain02c ddfs[31242]: INFO: Event cleared: m0-2878 (21000b3e:553651006): EVT-CLOUD-00001: Unable to access provider for cloud unit ECSCCA_DD.EVT-OBJ::CloudUnit=ECSCCA_DD EVT-INFO::Cause=I/O ERROR
Jan 31 14:35:00 Datadomain02c ddfs[31242]: INFO: Event marked for clearing; cannot post until cleared: m0-2878: EVT-CLOUD-00001: Unable to access provider for cloud unit ECSCCA_DD.EVT-OBJ::CloudUnit=ECSCCA_DD EVT-INFO::Cause=The server cannot process the request because there is not enough space on disk
Jan 31 14:50:21 Datadomain02c ddfs[31242]: INFO: Event posted: m0-2879 (21000b3f:553651007): EVT-CLOUD-00001: Unable to access provider for cloud unit ECSCCA_DD.EVT-OBJ::CloudUnit=ECSCCA_DD EVT-INFO::Cause=The server cannot process the request because there is not enough space on disk

Add additional space in the cloud and enable cloud unit.