--- trunk/grub/grub.confd	2011/07/04 15:57:37	1404
+++ trunk/grub/grub.confd	2012/03/04 00:53:02	1682
@@ -1,6 +1,16 @@
 GRUB_DEFAULT=0
 GRUB_TIMEOUT=5
+
+# Default command line
 GRUB_CMDLINE_LINUX_DEFAULT="quiet"
+
+# Systems with Flash memory like SSDs or intelligent HBAs such as Serial-Attached-SCSI (SAS)
+# should use the noop scheduler for best performance. The scheduler assumes I/O performance
+# optimization will be handled by the disk itself or the Host-Bus-Adapter (HBA).
+#GRUB_CMDLINE_LINUX_DEFAULT="elevator=noop"
+
+# Server should use the deadline scheduler for better database perfomance
+#GRUB_CMDLINE_LINUX_DEFAULT="elevator=deadline"
 GRUB_CMDLINE_LINUX=""
 
 # Preload both GPT and MBR modules so that they are not missed