Scsi Controller; Raid Support - Intel SR6850HW4 - Server Platform - 0 MB RAM Product Manual

Platform Description

SCSI Controller

A single LSI* 53C1030 Ultra320* LVDS controller provides the integrated SCSI interfaces. The
controller resides on PCI Bus Segment A (PX1A) off the Intel
®
XScale Microarchitecture. It communicates as a 64-bit PCI-X* device for optimum performance.
The controller's PCI-X* interface operates at a bus speed of 100 MHz. The configuration registers
define PCI-related parameters for the LSI* 53C1030 device. The LSI* 53C1030 supports all
mandatory registers in the PCI configuration space header including the following:
Vendor ID
Device ID
Class Code
Revision ID
Header Type
Command fields
Status fields.
The LSI* 53C1030 supports two Ultra320* LVDS channels. One is for control of internal drives,
and the other is for a high-speed connection to an external SCSI device. SCSI port A from the LSI*
53C1030 controls the internal SCSI channel. The internal channel is routed to the Intel
Platform SR4850HW4 SCSI backplane board via a SCSI U320 cable. The internal channel has
been validated only for LVDS operation. SCSI port B may be used for the tape drive, external SCSI
port, or an add-in adapter.
SATA Drive Support
®
Intel Server Board SE8500HW4 Main Board has a 7-pin vertical connector supporting one SATA
(Serial ATA) port, which is integrated in the ICH-5 component. The port can support a serial data
transfer rate up to 1.5 Gb/second.

RAID Support

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The Intel Server Board SE8500HW4 supports on-board RAID through the Intel
Processor with Intel XScale
controller. The server platform supports RAID 0, 1, 5, 10, and 50 configurations. A 2MB flash
component and a non-volatile SRAM store the LSI* code and hardware configuration information.
To activate this feature Intel
board and a DDR-2 DIMM must be installed into the RAID DIMM socket. This DIMM serves as
memory for the Intel
cache to store write data to the drives.
There is also an option to install the Intel
®
to the Intel IOP332 I/O Processor with Intel
specifications, the Intel
DIMM in self-refresh mode until power is restored. After power is restored, the data is safely
written to drives, maintaining the integrity of the disk array.
52
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Microarchitecture in conjunction with the LSI* 53C1030 SCSI
®
RAID Activation Key must be installed into the holder on the main
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IOP332 I/O Processor with Intel
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RAID Smart Battery. With the Smart Battery, if power
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®
RAID Smart Battery maintains the contents of the DIMM. It keeps the
Intel® Server Platforms SR6850HW4 and SR6850HW4/M Product Guide
®
IOP332 I/O Processor with Intel
® ®
XScale Microarchitecture, and as a disk
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XScale Microarchitecture drops below
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Server
®
IOP332 I/O