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	2014-01-03 17:13:10.000000000 -0800
+++ e-smith-backup-2.2.0/root/etc/e-smith/events/actions/workstation-backup-dar	2014-01-03 17:19:51.000000000 -0800
@@ -213,7 +213,21 @@
 if ($incnum == 0)
 {
     $setnum %= $setsmax;
-    ++$setnum;
+    $setnum++;
+    
+    # Remove set0 if reached $setsmax as set0 is deprecated and no longer valid.
+    if ($setnum == $setsmax && -d "$mntdir/$id/set0")
+    {
+        # if $setsmax already exists, just delete set0
+        if (-d "$mntdir/$id/set$setsmax") 
+        {
+            &remove_tree ("$mntdir/$id/set0");
+        }
+        else # move set0 to $setsmax, it will be deleted after a successful backup
+        {
+            move("$mntdir/$id/set0", "$mntdir/$id/set$setsmax");
+        }
+    }
 }
 
 $report .= sprintf("Using set number %d of %d\n", $setnum, $setsmax);