MegaRAID Express 500 Specifications

 

Parameter

Specification

 

 

Card Size

5.875" x 4.2" (half length PCI)

 

 

Processor

Intel i960RM™ 32-bit RISC processor @ 100 MHz

 

 

Bus Type

PCI 2.1

 

 

PCI Controller

Intel i960RM

 

 

Bus Data Transfer Rate

Up to 132 MB/s

 

 

BIOS

AMIBIOS MegaRAID BIOS

 

 

Cache Configuration

16, 32, 64, or 128 MB ECC through a 66MHz 72-

 

 

 

bit unbuffered 3.3V SDRAM.

 

 

Firmware

1 MB × 8 flash ROM

 

 

Nonvolatile RAM

32 KB × 8 for storing RAID configuration

 

 

Operating Voltage

5.00 V ± 0.25 V

 

 

SCSI Controller

One SCSI controller for 160 M Ultra and Wide

 

 

 

support.

 

 

SCSI Data Transfer

Up to 160 MB/s

 

 

Rate

 

 

 

SCSI Bus

LVD or single-ended

 

 

SCSI Termination

Active

 

 

Termination Disable

Automatic through cable and device detection

 

 

Devices per SCSI

Up to 15 wide or seven non-wide SCSI devices. Up

 

 

Channel

to 6 non-disk SCSI drives per MegaRAID Express

 

 

 

500 controller.

 

 

SCSI Device Types

Synchronous or Asynchronous. Disk and non-disk.

 

 

Supported

 

 

 

RAID Levels Supported

0, 1, 3, 5,10, 30, and 50

 

 

SCSI Connectors

One 68-pin internal high-density connector for 16-

 

 

 

bit SCSI devices. One ultra-high density 68-pin

 

 

 

external connector for Ultra and Wide SCSI.

 

 

Serial Port

3-pin RS232C-compatible berg

 

 

 

 

 

PCI Bridge/CPU

MegaRAID Express 500 uses the Intel i960RM PCI bridge with an embedded 80960JX RISC processor running at 100 MHz. The RM bridge handles data transfers between the primary (host) PCI bus, the secondary PCI bus, cache memory, and the SCSI bus. The DMA controller supports chaining and unaligned data transfers. The embedded 80960JX CPU directs all controller functions, including command processing, SCSI bus transfers, RAID processing, drive rebuilding, cache management, and error recovery.

32MegaRAID Express 500 Hardware Guide