--- a/check_raid/check_raid
+++ b/check_raid/check_raid
@@ -3975,8 +3975,10 @@ sub check {
 package hpacucli;
 use base 'plugin';
 
-# register
-push(@utils::plugins, __PACKAGE__);
+# register if cciss_vol_status is not available
+if (! utils::which('cciss_vol_status')) {
+	push(@utils::plugins, __PACKAGE__);
+}
 
 sub program_names {
 	__PACKAGE__;