Technical Product Specification

Hardware Intel® RAID Controller RS2BL080 and RS2MB044 Technical Product Specification
Revision 2.1
Intel order number E64388-004
18
Jumper Description Type Comments
J6B2 Battery Backup Unit connector 20-pin connector Connects the battery backup unit as daughter
card to the RAID controller.
2.4 Hardware Architectural Features
The following table shows hardware architectural features for Intel
®
RAID Controller RS2BL080
and RS2MB044
Table 6 Hardware Architectural Features
Feature Intel
®
RAID Controller RS2BL080 and RS2MB044
RAID levels 0, 1, 5, 6, 10, 50, 60
Number of devices Up to 32 devices for RS2BL080, and 240 for RS2MB044.
Device types SAS and SATA hard drives
Data transfer rate 600 MB/s per port
PCI bus x8 PCI Express* 2.0
Memory 512 MB ECC DDR2 800-MHz SDRAM integrated on the controller
Battery backup
(optional)
Intel
®
RAID Smart Battery AXXRSBBU7
SAS connector Intel
®
RAID Controller RS2BL080 contains two internal SFF8087 connectors
Intel
®
RAID Controller RS2MB044 contains one internal SFF8087 connector and one external
SFF8088 connector
ROC LSI* SAS2108 ROC, which provides hardware exclusive OR (XOR) assistance
Card dimensions 6.600 inches by 2.731 inches (MD2)
Serial port 4-pin serial debug (requires transceiver)
Compatible devices 32 physical devices for RS2BL080 and 240 for RS2MB044, 64 logical drives, mixed capacity
drives, SAS and SATA hard drives, and non-disk devices including expanders.
Firmware 8 MB in flash ROM
2.5 Electrical Characteristics
The PCI Express Specification requires that the 12-V rail and the 3.3-V rail have a voltage
tolerance of 8% and 9% respectively. The amount of power that an adapter card can use is also
limited. The overall power limit is 25 W. The maximum current draw allowed on the 3.3-V rail is
3 A and for the 12-V rail is 2.1 A.
All power is supplied to the Intel
®
RAID Controller RS2BL080 and RS2MB044 through the PCI
Express* 3.3-V rails and the 12-V rails. The on-board switching regulator circuitry, operating
from these rails, provides the necessary voltages. The following states determine the typical
current consumption of the controller:
 State 1: During a hard reset
 State 2: During a disk stress test
 State 3: While sitting idle at the DOS prompt
The supply voltages are 12 V ± 8 percent from PCI edge connector only and 3.3 V ± 9 percent
from PCI edge connector only. The following table lists the power supply for the RAID controller
for each state at the different voltages: