SCSI Drives (Netfinity 7000 - 8651)

SCSI Drives

Some drives have a special design called small computer system intertace, or SCSI. This design allows you to attach multiple drives to a single SCSI connector.

NOTE: Any information about SCSI drives also applies to other SCSI devices, such as scanners and printers.

A 16-bit (wide) SCSI cable connects each hot-swap backplane to an integrated SCSI controller on the system board. An additional 16-bit 4-drop SCSI cable is shipped (disconnected) in the bottom of the server between the open bays and the power supply area. It is folded and restrained with a cable clamp.

If you want to install SCSI devices in the left front bays, you can do one of following:

•  Use one of the SCSI controllers on the system board  to control the SCSI devices in the left front bays. In  order to do this, you will need to disconnect the SCSI  cable that controls one of the backplanes and install  the additional 4-drop SCSI cable that is shipped  (disconnected) inside the server. If you disconnect  the SCSI cable from the backplane, you cannot install  hot-swap drives in any of the bays supported by that  backplane and, thus, can have a maximum of six  hot-swap drives installed in the server. The 4-drop  SCSI cable can then be used to support the SCSI  devices in the left front bays.
•  Attach the 4-drop SCSI cable to one of the SCSI  controllers on the system board and use that  controller to control the SCSI devices in the left front  bays. Install an optional SCSI adapter and use the  SCSI controller on the adapter to control one of the  SCSI hot-swap backplanes.

  NOTE: For ease of cabling, if you install an optional  SCSI adapter to control a SCSI hot-swap  backplane, install it in PCI slot 1. Refer to 'Cabling Example for the ServeRAID Adapter' for more information.

•  Install optional repeater adapters on the backplanes  and daisy chain the backplanes, so they can be  controlled by one of the SCSI controllers on the  system board. You can then install the extra 4-drop  SCSI cable and use the other SCSI controller on the  system board to support the SCSI devices in the left  front bays.

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