Filter
Top Products
4-8 Features
Copyright © 2002 by LSI Logic Corporation. All rights reserved.
4.10 MegaRAID Components
4.10.1 CPU
The MegaRAID SCSI 320-2 controller uses the 64-bit Intel 80303
Intelligent I/O processor with an embedded 32-bit 80960 Jx RISC
processor that runs at 100 MHz. This processor directs all functions of
the controller including command processing, PCI and SCSI bus
Nonvolatile RAM 32 KB 8 for storing RAID configuration
Memory type One 72-bit 168-pin SDRAM DIMM socket provides
write-through or write-back caching on a logical drive
basis. It also provides adaptive read-ahead.
Operating voltage 5.00 V 0.25 V and 3.3 V +/- 0.3 V
SCSI controller 2 SCSI controllers for Ultra320 and Wide support
SCSI data transfer rate Up to 320 Mbytes/s
SCSI bus Low voltage differential or SE
SCSI termination Active, low-voltage differential, or single-ended
Termination disable Automatic through cable detection
Devices per SCSI
channel
Up to 15 wide or seven non-wide SCSI devices. Up to
6 non-disk SCSI drives per MegaRAID controller.
SCSI device types
supported
Synchronous or Asynchronous. Disk and non-disk.
RAID levels supported 0, 1, 5, 10, and 50
SCSI connectors Two 68-pin internal high-density connectors for 16-bit
SCSI devices.
Two ultra-high density 68-pin external connectors
SCSI cables Up to 25 m if using low voltage differential
Serial port 3-pin RS232C-compatible connector, used for test
purposes only
Table 4.6 MegaRAID SCSI 320-2 Specifications (Cont.)
Parameter Specification