4.9MegaRAID SCSI 320-0 Specifications

Table 4.6 lists the specifications for the SCSI 320-0.

Table 4.6

MegaRAID SCSI 320-0 Specifications

 

 

 

Parameter

 

Specification

 

 

 

Card size

 

2.536 x 6.6 inches (low-profile PCI)

 

 

 

Processor

 

Intel GC80302 integrated I/O processor

 

 

 

Bus type

 

PCI 2.2

 

 

 

PCI controller

 

Intel GC80302

 

 

Bus data transfer rate

Up to 132 Mbytes/s

 

 

 

BIOS

 

MegaRAID BIOS

 

 

Cache configuration

Predefined during manufacturing; ECC through a

 

 

66MHz 72-bit unbuffered 3.3V SDRAM.

 

 

 

Firmware

 

1 MB × 8 flash ROM

 

 

Nonvolatile RAM

32 Kbytes × 8 for storing RAID configuration

 

 

Operating voltage

5.00 V ± 0.25 V

 

 

SCSI data transfer rate

Up to 320 Mbytes/s

 

 

SCSI device types

Synchronous or asynchronous. Disk and non-disk.

supported

 

 

 

 

RAID levels supported

0, 1, 5, 10, and 50

 

 

 

4.9.1PCI Bridge/CPU

MegaRAID SCSI 320-0 uses the Intel i960RM PCI bridge with an embedded 80960JX RISC processor running at 66 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.

4-6Features

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