Patent ID: 7757024

Claim:
An information handling system, comprising: a first serial disk drive; a first dual port apparatus communicatively coupled to the first serial disk drive, the first serial disk drive and the first dual port apparatus being configured in a first disk drive canister, the first dual port apparatus further being communicatively coupled with a first serial master device and a second serial master device, the first dual port apparatus configured for dual porting the first serial disk drive to the first serial master device and the second serial master device; a second serial disk drive; a second dual port apparatus communicatively coupled to the second serial disk drive, the second serial disk drive and the second dual port apparatus being configured in a second disk drive canister, the second dual port apparatus further being communicatively coupled with the first serial master device and the second serial master device, the second dual port apparatus configured for dual porting the second serial disk drive to the first serial master device and the second serial master device; wherein the first serial master device and the second serial master device are each configured for receiving control signals for enabling the first serial master device and the second serial master device, the received control signals having been executed at a first level prior to being received by one of: the first serial master device and the second serial master device, the first serial master device and the second serial master device being located at a second level, the second level being a lower level than the first level, the received control signals ensuring that only one of: the first serial master device and the second serial master device is enabled at a given time, the first serial master device and the second serial master device being further configured for providing the received control signals to the first dual port apparatus and the second dual port apparatus for ensuring that no more than one of the first disk drive canister and the second disk drive canister is enabled at a given time.