SwitchX 36-Port QSFP InfiniBand- Ethernet Gateway System Hardware User Manual
Rev 1.0
Mellanox Technologies
41
3.6
Extracting and Inserting FRUs
3.6.1
Extracting and Inserting the Power Supply Unit
With both power supplies installed in the redundant configuration, either PS unit may be
extracted without bringing down the system.
Figure 29: Fan and PS unit Air Flow Direction
See Section 2.4 on page 24 for more information on air flow direction.
Figure 30: Power Supply Unit Extraction
If you are not immediately installing a new PSU you must install a blank so that the air flow for
cooling the gateway is not compromised.
Never run the gateway
for more than 5 minutes with an uncovered (open) PSU or Fan
slot.
Make sure that the PS unit that you are NOT replacing is showing all green, for both
the PS unit and status LEDs.
Power supply units have directional air flows similar to the fan module. The Fan mod-
ule airflow must coincide with the airflow of all of the PS units. If the PS unit airflow
direction is different from the fan module airflow direction the
gateway
internal tem-
perature will be affected.
OK
!
!
OK
OK
!
PS unit Air flow direction
Fan Air flow direction
OK
!
!
OK
OK
!
Latch release
Push Here