you can install an optional scsi adapter in your computer to control the internal hard disk drives and provide additional raid capabilities. with a scsi adapter installed, you can configure the internal hard disk drives into disk arrays. you can also cable a scsi adapter to external hard disk drives. see your scsi adapter option documentation for complete instructions for installing a scsi adapter in your computer and for additional information about scsi adapters.
the following notes describe information that you must consider when cabling an optional scsi adapter.
1 the scsi cables that are used by the integrated scsi controller cannot be used with an optional scsi adapter.
2 if you install a serveraid 6i+ adapter, it must be installed in slot 3 no cabling is required for this adapter.
complete the following steps to cable an optional scsi adapter:
1. install the scsi adapter.
2. connect the scsi-signal cable to the adapter and to one or more of the signal-cable connectors on the rear of the scsi devices.

3. complete the installation of the optional scsi adapter.