Dell POWEREDGE M905 - Manual (Page 8)

Rev 1.0 Mellanox Technologies
8
2 Installation and Basic Operation
2.1 Switch Platform Hardware Overview
Figure 1 shows the front panel view of the switch.
Figure 1: Switch Front Panel and Locking Mechanism
2.1.1 InfiniBand Connectors
InfiniBand connectivity has 8 CX4 microGiGa connectors through the front panel. The remaining
16 interfaces are through the AirMax Midplane Connector out the back of the switch. Figure 1
shows the front 8 ports.
Each of the front panel connectors has two LEDs located next to the connector. The green LED,
when lit, indicates that the InfiniBand driver is running and a valid physical connection between
nodes exists. The yellow LED when lit, indicates a valid data activity link, this is the logical link.
The yellow LED illuminates when the InfiniBand network is discovered over the physical link. A
valid data activity link without data transfer is designated by a constant yellow LED indication. A
valid data activity link with data transfer is designated by a blinking yellow LED indication. If the
LEDs are not active, either the physical link or the logical link (or both) connections has not been
established.
Figure 2: Physical and Logical Link Indications LEDs
1 2 7 6 5 4 3 8
Locking Mechanism
Switch Status Lights
LED Name
Physical Link - Green
Data Activity - Yellow
Blinking indicates Data Transfer
Constant on indicates no Data Transfer