13• Allow the hot plug hard drives and power supply units to coolbefore touching them.• Always keep the rack's front door and all panels and componentson the servers closed when not servicing to maintain propercooling.Rack Mounting ConsiderationsBelow are listed important considerations for rack mounting.Ambient Operating TemperatureIf installed in a closed or multi-unit rack assembly, the ambientoperating temperature of the rack environment may be greater thanthe ambient temperature of the room . Therefore, consideration shouldbe given to installing the equipment in an environment compatiblewith the manufacturer’s maximum rated ambient temperature. Referto Appendix E for operating temperature specifications.Reduced AirflowEquipment should be mounted into a rack so that the amount ofairflow required for safe operation is not compromised.Mechanical LoadingEquipment should be mounted into a rack so that a hazardouscondition does not arise due to uneven mechanical loading.Circuit OverloadingConsideration should be given to the connection of the equipment tothe power supply circuitry and the effect that any possible overloadingof circuits might have on over-current protection and power supplywiring. Appropriate consideration of equipment nameplate ratingsshould be used when addressing this concern.Reliable GroundA reliable ground must be maintained at all times. To ensure this, therack itself should be grounded. Particular attention should be given to
