--- ./plugins/node.d/hddtemp_smartctl.in.org    2012-06-21 12:09:10.960144507 +0900
+++ ./plugins/node.d/hddtemp_smartctl.in        2012-06-21 12:11:56.599922538 +0900
@@ -139,7 +139,7 @@
   # without probing them.
 } elsif ($^O eq 'freebsd') {
   opendir(DEV, '/dev');
-  @drives = grep /^ad[0-9]+$/, readdir DEV;
+  @drives = grep /^ad[0-9]+$|^ada[0-9]+$/, readdir DEV;
   closedir(DEV);
 } elsif ($^O eq 'solaris') {
   @drives = map { s@.*/@@ ; $_ } glob '/dev/rdsk/c*t*d*s2';