Netapp locked or busy snapshots. 'Busy because of LUN clone'

Netapp are locked/busy snapshots due to LUN clone, initiator mappings. Netapp on ONTAP 8.x, using FCP initiators.

>snap list

  %/used       %/total  date          name
----------  ----------  ------------  --------
 27% (27%)   14% (14%)  Jan 1 08:15  {360e0a4e-c746-43b4-2eb0b56a2} (busy,LUNs)


netapp90> snap delete Data05 {360e0a4e-c746-43b4-2eb099eb56a2}
Snapshot {360e0a4e-c746-43b4-2eb099eb56a2} is busy because of LUN clone

-At this point verify no mappings to initiators, if there are mappings remove them

netapp90> Sat Jan 1 08:29:50 [netapp90: lun.map.unmap:info]: LUN /vol/Data05/{0854e947-10d3-4ab5-86d511f3d741}.rws unmapped from initiator group viaRPC.51:00:01:24:4f:01:ae:2e
Jan  1 08:29:50 [netapp90: lun.map.unmap:info]: LUN /vol/Data05/{0854e947-10d3-4ab5-86d511f3d741}.rws unmapped from initiator group viaRPC.51:00:01:24:4f:01:ae:2e
Jan  1 08:29:50 [netapp90: lun.destroy:info]: LUN /vol/Data05/{0854e947-10d3-4ab5-86d511f3d741}.rws destroyed

netapp90> snap list Data05
Volume Data05
working...

  %/used       %/total  date          name
----------  ----------  ------------  --------
 27% (27%)   14% (14%)  Jan 1 08:15  {360e0a4e-c746-43b4-2eb099eb56a2}

netapp90> snap delete Data05 {360e0a4e-c746-43b4-2eb099eb56a2}
Jan  1 08:30:48 [netapp90: wafl.snap.delete:info]: Snapshot copy {360e0a4e-c746-43b4-2eb099eb56a2} on volume Data05 NetApp was deleted by the Data ONTAP function snapcmd_delete. The unique ID for this Snapshot copy is (35, 289451).