Patent ID: 7447926
Filing Date: 2008-11-04
Classification: G06F,G11B

Abstract:
1. Apparatus for controlling disk drive spin-up comprising: a first device coupled to a first disk drive via first disk communications lines, the first device operable to receive a first reset signal, the first device allowing communications to be transferred to the first disk drive when the first reset signal is released; a second device coupled to a second disk drive via second disk communications lines, the second device operable to receive a second reset signal, the second device allowing communications to be transferred to the second disk drive when the second reset signal is released; a third device for providing the first reset signal to the first device and the second reset signal to the second device, wherein the second reset signal is released a time interval after the first reset signal is released; wherein the first and second disk drives spin up after communications are received; a first controller module coupled to the first device and the second device via first module communications lines; and a second controller module coupled to the first device and the second device via second module communications lines; wherein the first device is operable to receive a first select signal and the second device is operable to receive a second select signal; and wherein the third device provides the first and second select signals, the first select signal for causing the first device to couple either the first module communications lines or the second module communications lines to the first disk communications lines, the second select signal for causing the second device to couple either the first module communications lines or the second module communications lines to the second disk communications lines.