The Gdt Controller Is The Only Controller In The System; The Gdt Controller Is The Secondary Controller In The System - Adaptec GDT6110 User Manual

J.4.1 The GDT controller is the only Controller in the system
C=Custom Setup
S=Specify Additional SCSI Adapters
Other
GDT Cache and Disk Array Controller
J.4.2 The GDT controller is the secondary Controller in the system
Windows NT Setup
Options Add/Remove SCSI Adapters
Add Other
GDT Cache and Disk Array Controller
Install
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Chapter J - GDT User's Manual