System Cabling
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9.3.1
InfiniBand Cabling
—Do’s and Don’ts
Do not kink the cable.
Do not over-bend the cable behind the connector.
Do not twist the connector.
If it is necessary to re-orient the connector, start the adjustment further down
the cable, at least 75 cm away from the connector, so the twist occurs gradually
along the cable instead of abruptly near the connector.
9.4
Replacing Line Boards
If the cabling is done according to the guidelines described in the InfiniBand Cabling
guidelines above.
sLB-4018 Line Boards can be replaced without interfering with traffic of operation of adjacent
Line Boards, even when the 4700 is fully populated with Line Boards.
It is permissible to connect and disconnect InfiniBand cables while the 4700 is powered on.
To replace a Line Board:
1.
Carefully remove the InfiniBand cable connections from the Line Board connectors
(located at the rear side of the chassis). It is recommended to gently secure the removed
cables using a Velcro tie, neatly placing the cables on the outside of cable guide bracket
rails.
2.
Remove a Line Board, as described in Inserting/Extracting Boards.
3.
Insert a new Line Board as described in Inserting/Extracting Boards.
4.
Replace the cable connections.
9.5
Connecting to the Management Ports
The Mellanox 4700 has management ports located at top back of the 4700. This includes two
interfaces: a serial interface for local console access and a 10/100/1G Ethernet interface for
network access. The serial port can be used to connect to a PC running terminal emulation
software for 4700 management tasks. The Ethernet port is connected to an IP network and is
used to run a CLI (via Telnet).
It also includes a USB type A connection (One USB 2.0 Host interface allows you to increase
the CPU flash memory by a connection to a standard Disk-On-Key device.).
Through the management network, you can manage the 4700 using a Command Line Interface
(CLI). Refer to the relevant User Manual for more information.
If the configuration calls for out-of-band management of the 4700, either using a serial
connection or over Ethernet, the management network must be connected to the corresponding
