Unable to delete Snapshots, it shows "busy, vclone state"

Applies to

Data ONTAP 8 operating in 7-Mode

Issue

Cannot delete Snapshots in the busy, vclone state.

Error: failed to delete backup. Reason: snapshot 'smvi__Win2003-host-mapper-P!DailyBackup_20160215110000

Snapshots cannot be deleted because they are busy.

Snap list shows snapshots in a busy, vclone state.

filer> snap list vol2a

===== snap list vol2a ========
Aug 04 18:14 eloginfo__mail02_08-04-2008_17.45.00__daily
Aug 04 17:45 exchsnap__mail02_08-04-2008_17.45.00__daily
Aug 03 17:45 exchsnap__mail02_08-03-2008_17.45.00__daily
Jul 20 17:45 exchsnap__mail02_07-20-2008_17.45.00__daily (busy,vclone)
Jun 05 17:45 exchsnap__mail02_06-05-2008_17.45.00 (busy,vclone)
May 23 17:45 exchsnap__mail02_05-23-2008_17.45.00 (busy,vclone)