SuperServer 5019S-WR User's Manual
Chapter 2: Server Installation
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Circuit Overloading
Consideration should be given to the connection of the equipment to the power supply circuitry
and the effect that any possible overloading of circuits might have on overcurrent protection
and power supply wiring. Appropriate consideration of equipment nameplate ratings should
be used when addressing this concern.
Reliable Ground
A reliable ground must be maintained at all times. To ensure this, the rack itself should be
grounded. Particular attention should be given to power supply connections other than the
direct connections to the branch circuit (i.e. the use of power strips, etc.).
To prevent bodily injury when mounting or servicing this unit in a rack, you must take
special precautions to ensure that the system remains stable. The following guidelines
are provided to ensure your safety:
•
This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
•
When mounting this unit in a partially filled rack, load the rack from the bottom to the top
with the heaviest component at the bottom of the rack.
•
If the rack is provided with stabilizing devices, install the stabilizers before mounting or
servicing the unit in the rack.
•
In single rack installations, stabilizers should be attached to the rack. In multiple rack in-
stallations, the racks should be coupled together.
•
Always make sure the rack is stable before extending a server or other component from
the rack.
•
You should extend only one server or component at a time - extending two or more simul-
taneously may cause the rack to become unstable.
Server Precautions
•
Review the electrical and general safety precautions in Appendix B.
•
Determine the placement of each component in the rack
before
you install the rails.
•
Install the heaviest server components at the bottom of the rack first and then work your
way up.
•
Use a regulating uninterruptible power supply (UPS) to protect the server from power
surges and voltage spikes and to keep your system operating in case of a power failure.
•
Allow any drives and power supply modules to cool before touching them.
•
When not servicing, always keep the front door of the rack and all covers/panels on the
servers closed to maintain proper cooling.
Rack Mounting Considerations
Ambient Operating Temperature
If installed in a closed or multi-unit rack assembly, the ambient operating temperature of
the rack environment may be greater than the room's ambient temperature. Therefore,
consideration should be given to installing the equipment in an environment compatible with
the manufacturer’s maximum rated ambient temperature (TMRA).
Airflow
Equipment should be mounted into a rack so that the amount of airflow required for safe
operation is not compromised.
Mechanical Loading
Equipment should be mounted into a rack so that a hazardous condition does not arise due
to uneven mechanical loading.
