add debug

tests/test_raid.py

@@ -23,7 +23,9 @@ def print_green(string):
 def check_raid(dev):
     cmd = 'mdadm -D %s' % dev
     status, output = subprocess.getstatusoutput(cmd)
-    return status == 0 
+    ok = status == 0
+    print('%s status: %s' % (dev, ok))
+    return ok
 
 if os.path.isfile('/proc/mdstat'):
     all_ok = True