--- lustre-info.pl	2010-07-29 17:45:10.000000000 +0100
+++ lustre-info.pl_new	2010-07-29 17:45:54.000000000 +0100
@@ -180,7 +180,8 @@ sub loop_ost_stats {
 			
 			# Add some 'metadata' info
 			foreach my $type (qw(create destroy setattr preprw)) {
-				printf(", %s=%5.1f R/s",$type,$stats->{$type}/$slice);
+				if (exists $stats->{$type})
+					{ printf(", %s=%5.1f R/s",$type,$stats->{$type}/$slice); }
 			}
 			print "\n";
 		}