- 7 -
Aberdeen
LLC
AberNAS
120
/
126
4.5.
Server Precautions
•
Determine the placement of each component in the rack before you install the rails.
•
Install the heaviest server components on the bottom of the rack first, and then work up.
•
Use a regulating uninterruptible power supply (UPS) to protect the server from power surges, voltage
spikes and to keep your system operating in case of a power failure.
•
Allow the hot plug SCSI drives and power supply units to cool before touching them.
•
Always keep the rack's front door and all panels and components on the servers closed when not servicing
to maintain proper cooling.
4.6.
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 ambient temperature of the room. Therefore, consideration should be given to installing the
equipment in an environment compatible with the manufacturer’s maximum rated ambient temperature (Tmra).
4.7.
Reduced Airflow
Equipment should be mounted into a rack so that the amount of airflow required for safe operation is not
compromised.
4.8.
Mechanical Loading
Equipment should be mounted into a rack so that a hazardous condition does not arise due to uneven mechanical
loading.
4.9.
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.
4.10.
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.).
