Adaptec DURASTOR 6320SS Manual page 115

Figure A-8 and
logical functions when the controllers are functioning in a normal
condition and then in a failed condition.
Host System #1
or Host System #2
HBA#2
Termination
Host System #1
HBA#1
Termination
Figure A-8 Active-Passive, Dual-Port, Controller 1 Active
Host System #1
or Host System #2
HBA#2
Termination
Host System #1
HBA#1
Termination
Figure A-9 Active-Passive, Dual-Port, Controller 1 Failed
Figure A-9 illustrate the active-passive mode
Theory of Controller Operation
Termination
Termination
Termination
Termination
Termination
Termination
A-13