Embodiments of the present invention reduce the written-in run-out in
servo data written to a storage medium. A set of servo controllers are
evaluated and the controller having the best expected performance among
the set is selected and employed. One embodiment of the present invention
is a servo controller configured to select and employ a controller having
a least amount of expected written-in run-out among a set of controllers.
Another embodiment of the present invention is a method comprising a step
for applying a set of controllers; and selecting a controller from the
set of controllers with a least expected amount of written-in run out.
Another embodiment of the present invention is a system comprising a
servo controller means for employing and selecting a disk controller that
has a least expected amount of written-in run-out among a set of
controllers.