Mellanox Pci-Express Ddr Hca Leds; Mellanox Pci-Express Hca (Ddr) - HP Cluster Platform Interconnects v2010 User Manual

Figure 8-9 Mellanox PCI–Express HCA (DDR)
Features of the Mellanox PCI-Express DDR HCA include:
• Two 4X InfiniBand copper ports for connecting InfiniBand traffic (4X IB connectors)
• 4X port supports 20 Gb/s
• Third-Generation HCA core
• On board DDR SDRAM memory (memory configurations vary)
• PCI-Express x8 edge connector
• I/O Panel LEDs
Installation of the Mellanox PCI-Express DDR HCA is similar to that of the Voltaire HCAs
described previously in this chapter.

8.9.1 Mellanox PCI-Express DDR HCA LEDs

The board has four LEDs located on the I/O panel - 2 LEDs per 4X port. The physical link (green)
illuminates once VAPI (InfiniBand Verbs API) is started and a physical connection is made
between two nodes. The data activity link (yellow) illuminates once the InfiniBand network is
discovered over the physical link. The activity link is a steady yellow when it is discovered, but
no data is being passed. The activity link blinks when data is being passed. If the LEDs are not
active, either the physical or the logical (or both) connections have not been established.
Port 1
Port 2
104 Installing and Maintaining HCA Cards and Mezzanines
LED Name
Physical Link - Green
Data Activity - Yellow
LED Name
Physical Link - Green
Data Activity - Yellow