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InfiniBand Switch Platform Hardware User Manual
1.7.1
Powering Up the Switch Platform
The chassis in N+1 mode must be started with a full complement of PSUs, thereafter it
can run on one less than the total number of PSUs. This final PSU is redundant and
allows for hot swapping a PSU should one fail. Connecting the PSUs to different AC
lines provides AC failover protection.
The system should continue to run and allow a hot swap of a defective PSU. Should
there not be enough power to keep all of the leafs running, FabricIT EFM may power
down some leafs. If this happens it may be necessary to reboot the chassis once the
defective PSU has been replaced. Two simple ways to reboot is to use the reboot com-
mand in the CLI or reboot through the Web GUI.
The power system will divide the current consumption by the number of working PSUs.
Should one of the PSUs fail, the total current consumption will then be divided by the
remaining working PSUs. When the failed PSU is hot swapped the new PSU will ramp
up and pass its share of current, so that the total current is always divided by the number
of working PSUs.
1. Plug in the power cords to the PSUs.
2. Plug the other end of the power cords into grounded outlets.
Figure 31: Multiple Power Inlets – Electric Caution Notification
CAUTION
Risk of electric shock and
energy hazard.
The PSUs are all independent.
Disconnect all power supplies to
ensure a powered down state
inside of the switch platform.
3. Check the Status LEDs on all of the management modules and confirm that all of the
LEDs show status lights consistent with normal operation.
Mellanox Technologies
Make sure that the power cords are compatible with your outlets. Power cords for dif-
ferent countries can be ordered from Mellanox.
Make sure that the outlets and circuits will not be overloaded. Spread out the load over
at least two or three circuits or use a 3 phase circuit.
ACHTUNG
Gafahr des elektrischen Schocks.
Entferrnen des Netzsteckers
elnes Netzteils spannungsfrei.
Um alle Einhieten spannungsfrei
zu machen sind die Netzstecker
aller Netzteile zu entfernen
Any yellow or red status LEDs on any of the management modules is cause for con-
cern and must be dealt with immediately.
ATTENTION
Risque de choc et de danger
e'lectriques. Le de'branchment
d'une seule alimentation stabi-
lise'e ne de'branch uniquement
qu'un module "Alimentation
Stabilise'e". Pour isoler com-
pletement le module en cause, Il
faut de'brancher toutes les ali-
mentations stabilise'es.
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