Avago Technologies LSI53C1030 - Manual (Page 20)

1-4 Introduction
Version 2.2 Copyright © 2001, 2002, 2003 by LSI Logic Corporation. All rights reserved.
Figure 1.2 Typical LSI53C1030 System Application
The LSI Logic Integrated RAID solution provides cost benefits for the
server or workstation market where the extra performance, storage
capacity, and/or redundancy of a RAID configuration are required. The
two components of Integrated RAID are:
•
Integrated Mirroring™ (IM), which provides features of RAID 1 and
RAID 1E. IM provides physical mirroring of the boot volume through
LSI53C1030 firmware. This feature provides extra reliability for the
system’s boot volume without burdening the host CPU. The runtime
mirroring of the boot drive is transparent to the BIOS, drivers, and
operating system.
• Integrated Striping™ (IS), which provides features of RAID 0. The
IS feature writes data across multiple disks instead of onto one disk.
This is accomplished by partitioning each disk’s storage space into
Fixed Disk, Optical Disk,
Printer, Tape, and Other
SCSI Peripherals
Fixed Disk, Optical Disk,
Printer, Tape, and Other
SCSI Peripherals
One PCI Bus Load
PCI Graphic Accelerator
PCI Fast Ethernet
Memory
Controller
Memory
PCI-X Bus
Interface
Controller
Central
Processing
Unit
(CPU)
Processor Bus
LSI53C1030 PCI-X
to Ultra320 SCSI
Channel [0]
and
LSI53C1030 PCI-X
to Ultra320 SCSI
Channel [1]
SCSI Bus
SCSI Bus
PCI-X Bus