A method and apparatus for managing power sequencing in a data storage
system. The turn-on or spin-up sequence for the media drives in an array
of media drives is selectively controlled such that the overall rush
current is reduced. The individual drive components are characterized to
determine a power profile for each such component. A closed-loop process
is then used to manage and reduce peak power requirements when starting
up or spinning up an array of media drives using the drive profiles. The
media drives can also be organized as a plurality of sets of drives, and
a power profile for each set of drives is used to manage and reduce peak
power requirements.