Disk Speeds

Hi,

I note the following:

NOTE: The default setting for Disk Cache Policy for virtual disks based on SATA drives is Enabled; and for virtual disks based on SAS drives is Disabled.

Why is the SAS cache disabled? I thought it would make the disk faster to Enable it.

Is there a comprehensive White Paper discussing the various RAID settings for the latest controllers?

Thx,

John Bradshaw