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I/O Subsystems Intel® Server Board Set SE8500HW4
Revision 1.0
Intel order number D22893-001
16
3.2 Ultra320 SCSI Subsystem
A single LSI Logic* 53C1030 controller provides the on-board Ultra320 SCSI interface. The
controller resides on the PCI Bus Segment A (PX1A), off the Intel® IOP332 Storage I/O
Processor. For optimal performance, the controller is configured as a 64-bit PCI-X 100MHz
device.
The LSI Logic 53C1030 supports two Ultra320 SCSI channels, both validated for LVDS
operation. In the Intel
®
Server Platform SR4850HW4 the first channel is routed to the internal
hot-swap hard disk drive bay and the second is optionally connected to an external connector.
In the Intel
®
Server Platform SR6850HW4 both channels are routed to the internal hot-swap
hard disk drive bay. Intel has not validated Single Ended (SE) operation for this device.
The Mainboard provides active terminators, termination voltage, auto re-sealable fuse, and
protection diode for both SCSI channels. The SCSI ROM allows for the configuration of on-
board termination.
PCI Express and PCI-X adapter cards based on a LSI Logic 53C1030 controller should have
the option ROM for the slot turned off in the system BIOS setup. This will allow the embedded
LSI Logic 53C1030 controller firmware to manage the add-in adapters. The Intel
®
Server Board
Set SE8500HW4 Mainboard does not have a physical flash device, so the system BIOS loads
the required RISC F/W into the embedded LSI Logic 53C1030 controller during POST. A
53C1030-based adapter cannot take control of the embedded SCSI controller since those cards
do not have the required RISC F/W to start the embedded SCSI device. Starting with the LSI
Logic Fusion-MPT* SCSI BIOS 5.10.02, the embedded LSI Logic 53C1030 SCSI controller can
control additional LSI Logic 53C1030-based adapter cards.