separated disk io scripts into installation and execution

disk/bonnie_install.sh

@@ -1,5 +1,3 @@
 #!/bin/bash
-
-yum install bonnie
 apt-get install bonnie
-bonnie -u root
+yum install bonnie

disk/bonnie_run.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+bonnie -u root