IBM SAN192C-6, Installation, Service And User Manual

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CAUTION:
In general, the positive (+) terminal is grounded at the battery and is the low
end and that should be isolated from ground to prevent a ground loop. Both
terminals should to be isolated from ground and the negative terminal to
ground should be a short and blow the breaker.
Note: When installing or replacing the unit, the ground connection must
always be made first and disconnected last.
Note: Hazardous voltage or energy may be present on DC power terminals.
Always replace cover when terminals are not in service. Be sure uninsulated
conductors are not accessible when cover is in place.
5. Press and hold the release latch on the front of the power supply and then pull
the power supply part way-out of the chassis by its handle.
Note: Each DC power supply weighs 11 lb (5 kg).
6. If the power supply bay is to remain empty, install a power supply filler panel
over the opening, and tighten the captive screw to 8 in-lb.
Installing and Removing Fan Modules
The fan module is designed to be removed and replaced while the system is
operating without presenting an electrical hazard or damage to the system,
provided the replacement is performed promptly.
The IBM c-type SAN Devices have three fan modules. Each fan module for the
SAN384C-6 Director has four individual fans and each fan module for the
SAN192C-6 Director has two individual fans with an abrupt stop-to-fan rotation
safety feature after power is disconnected or the fan module is removed from the
mid-plane.
CAUTION:
The IBM c-type SAN switches and devices have internal temperature sensors
that can shut down the system if the temperature at different points within the
chassis exceed certain safety thresholds. To be effective, the temperature sensors
require the presence of airflow; therefore, if a fan module is removed from the
chassis, the IBM c-type SAN switches and devices will be shut down to prevent
potentially undetectable overheating. However, the switches will be shut down
sooner if the higher-level temperature threshold is exceeded. In normal data
center conditions, if one fan module fails or needs to be removed, the other two
fan modules can cool the system effectively for up to 72 hours.
This section includes the following topics:
v “Installing a Fan Module”
v “Removing a Fan Module” on page 87
Installing a Fan Module
About this task
To install a fan module on the IBM c-type SAN Device, follow these steps:
Procedure
1. Hold the fan module so that the Fan Status LED is at the bottom.
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SAN192C-6, SAN384C-6 and SAN768C-6 Installation, Service, and User Guide