HP Smart Array 6400 Series Controllers Support Guide, September 2007

Expansion Module Components
This section describes the components of the Expansion Module. Figure 1-4 illustrates their
location, and Table 1-5 provides additional information.
Figure 1-4 Smart Array 6404 Controller Expansion Module Components
Table 1-5 6404 Expansion Module Components
DescriptionItem ID
Runtime LEDs (CR10-CR17). Identical to the controller board runtime LEDs.0-7
VHDCI connector, port B28
VHDCI connector, port B29
Connector to controller board10
PCI System Interface
The Smart Array Controllers interface with the system through a high-performance 64-bit PCI-X
(or PCI) bus that does the following:
• Runs at speeds up to 133 MHz
• Provides a high-speed data path (up to 1.0 GB/s) between the system board and the controller
• Includes two parity protection signals
The Smart Array Controllers are PCI-X Bus Master devices that conform to Rev. 1.0 of the PCI-X
Local Bus Specification. A bus master device takes control of the PCI bus during high-speed
transfers, freeing the system processor to handle application processing or other tasks.
For maximum performance, HP recommends that you use only 133 MHz devices on any given
133 MHz PCI-X bus. Combining 133 MHz and 66 MHz devices on a PCI-X bus decreases the
overall bandwidth to 66 MHz speeds.
SCSI Support
The Smart Array Controllers support Low Voltage Differential (LVD) signaling only. They
support disk drives that conform to Ultra320, Ultra160, and Ultra2 standards. If Ultra320, Ultra160,
Board Components and Features 19