I recall a discussion on ufs vs aufs vs diskd some time ago.
(If I recall correctly)
With a single cache disk, aufs is better on Linux and diskd is better on other OSes.
However, when you have multiple cache disks, diskd is better
regardless of platform.
Adam,
'Multiple cache disks', does that included hardware raids, because that are also 'multiple disks'.
(but one disk for the OS).
I will do some tests regarding this in the future.
Bart
