InfiniBand Switch Platform Hardware User Manual
Mellanox Technologies
41
1.9.3
Spine Boards
Each spine has a pair of ejectors that lock the board in place and serve as levers for seat-
ing or extracting (see Figure 31).
Management board #1 is connected to spine board #1, and management board #2 is con-
nected to spine board #2.
When a slave management board is not installed or not
working, the spine board connected to the master management board cannot be
hot-swapped.
All of the spine boards can be hot-swapped when two management boards
are installed and working.
1.9.3.1 Extracting a Spine Board
Extracting Spine Board #1 or #2
Spine board #1 is connected to management board #1 and spine board #2 is connected to
management board #2.
Do NOT mix replacement parts based on different generations of chip.
Do not install InfiniScale IV based replacement parts within a SwitchX® based chas-
sis and vice versa. All Replacement modules must be consistent with the Chassis fam-
ily and switch chip generation.
When hot swapping any of the units, it is necessary to wait 1 minute after removing the
defective part before inserting the new part. This is necessary so that the management
module will start a new cycle checking through the leafs and spines for the FW ver-
sions.
When more than one spine slot is empty always insert the lowest spine board first, then
work your way up.
If you need to replace the bottom spine and it does not go in, try removing one or two
spines above it and then insert the spines from the bottom up.
When a slave management board is not installed or not working, hot-swapping the
spine board connected to the master management board will cause the chassis to crash.
Neither the CLI nor the GUI management tools will allow you to shut down spine #1
or spine #2, as the management modules are connected to the chassis components
through these spines.
