With respect to the disk drives provided power from a single power source in a disk drive system, start up power is first supplied to a first start-up group of the disks, preferably comprising all of the master disks, with the size of the group being selected so that the required current does not exceed...http://www.google.com/patents/US6397294?utm_source=gb-gplus-sharePatent US6397294 - Disk system and power-on sequence for the same
