diff -ruN e-smith-backup-2.2.0.old/root/etc/e-smith/events/actions/workstation-backup-dar e-smith-backup-2.2.0/root/etc/e-smith/events/actions/workstation-backup-dar
--- e-smith-backup-2.2.0.old/root/etc/e-smith/events/actions/workstation-backup-dar	2013-12-11 22:22:38.000000000 -0800
+++ e-smith-backup-2.2.0/root/etc/e-smith/events/actions/workstation-backup-dar	2013-12-11 22:30:12.000000000 -0800
@@ -214,6 +214,11 @@
 {
     $setnum %= $setsmax;
     ++$setnum;
+    # Remove set0 if reached $setsmax as set0 is deprecated and no longer valid.
+    if ($setnum == $setsmax)
+    {
+        &remove_tree ("$mntdir/$id/set0");
+    }
 }
 
 $report .= sprintf("Using set number %d of %d\n", $setnum, $setsmax);