Intel RAID Controller SRCU42X
15
Chapter 1
Overview
This section provides a general overview of the Intel
®
RAID Controller SRCU42X . It
consists of the following sections.
•
Section 1.1, “Overview,” page 15
•
Section 1.2, “Features,” page 16
•
Section 1.3, “Hardware,” page 17
1.1
Overview
The Intel RAID Controller SRCU42X is a high-performance intelligent Peripheral
Component Interconnect to Small Computer System Interface (PCI-to-SCSI) host adapter
with Redundant Array of Independent Disks (RAID) control capabilities. The SRCU42X
controller provides reliability, high performance, and fault-tolerant disk subsystem
management. It is an ideal RAID solution for the internal storage of workgroup,
departmental, and enterprise systems.The SRCU42X controller offers a cost-effective way to
implement RAID in a server.
The SRCU42X controller (dual-channel) has one LSI* 53C1030 controller chip that controls
two SCSI channels. The SRCU42X controller has two VHDCI 68-pin external SCSI
connectors and two HDCI 68-pin internal SCSI connectors. The SRCU42X controller is a
PCI-X controller.
The SRCU42X controller supports a low voltage differential (LVD) or a single-ended (SE)
SCSI bus. With LVD, you can use cables up to 12 meters long. Throughput on each SCSI
channel can be as high as 320 Mbytes/s.
You can install the Intel RAID Controller SRCU42X in PCI-X computer systems with a
standard bracket type. With this adapter in your PCI or PCI-X system, you can connect SCSI
devices over a SCSI bus.
For Ultra320 SCSI performance, you must connect only LVD devices to the bus. Do not mix
SE with LVD devices, or the bus speed will be limited to the slower SE (Ultra SCSI) SCSI
data transfer rates. Do not connect a high voltage differential (HVD) device to the SCSI bus
because the chip on the SRCU42X controller must be reset to return to LVD or SE mode
once the HVD device is removed.
