Mellanox Pci-X Hca (Sdr); Mellanox Pci-X Sdr Hca Leds; Mellanox Pci-X Hca - HP Cluster Platform Interconnects v2010 User Manual

The LED ports on the Topspin/Mellanox PCI-Express HCA blink to indicate traffic on the
InfiniBand link on initial setup. The installation and LEDs of the Topspin cards are similar to
that of the Voltaire HCAs described previously in this chapter.

8.5 Mellanox PCI-X HCA (SDR)

The Mellanox PCI-X HCA supports InfiniBand protocols. It is single data rate (SDR) card with
two 4x InfiniBand 10 Gb/s ports and 128 MB memory.
Figure 8-5 Mellanox PCI–X HCA
Features of the Mellanox PCI-X HCA include:
• 4x InfiniBand 10 Gb/s ports
• 128 MB memory
• PCI-X 64 bit 66/133 MHz Edge Connector
• I/O Panel LEDs
• 3.3 V only, up to 133 MHz
• Supports InfiniBand protocols
Installation of the Mellanox PCI-X HCA is similar to that of the Voltaire HCAs described
previously in this chapter.

8.5.1 Mellanox PCI-X SDR 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
Figure 8-5 shows the Mellanox PCI-X HCA
LED Name
Physical Link - Green
Data Activity - Yellow
8.5 Mellanox PCI-X HCA (SDR) 99