Receiving, Unpacking, and Access for Oracle Exadata Database Service on
Cloud@Customer Racks
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Review and prepare the receiving area that is large enough for the Exadata
Rack package.
Description
Millimeters (mm)
Inches (β)
Shipping Height
2159 mm
85 inches
Shipping Width
1219 mm
48 inches
Shipping Depth
1575 mm
62 inches
If your loading dock meets the height and ramp requirements for a
standard freight carrier truck, then you can use a pallet jack to unload the rack.
If the loading dock does not meet the requirements, then you must provide a standard
forklift, or other means to unload the rack. You can also request that the rack is
shipped in a truck with a lift gate.
Use a conditioned space to remove the packaging material to reduce particles before
entering the data center. Allow enough space for unpacking it from its shipping
cartons.
Use the information in the following table to ensure that there is a clear pathway
for moving the Exadata Database Service on Cloud@Customer rack. Also, the entire access route to the
installation site should be free of raised-pattern flooring that can cause
vibration.
Access Route Item
With Shipping Pallet
Without Shipping Pallet
Minimum door height
2184 mm (86 inches)
2040 mm (80.32 inches)
Minimum door width
1270 (50 inches)
640 mm (25.19 inches)
Minimum elevator depth
1625.6 mm (64 inches)
1240 mm (48.82 inches)
Maximum incline
6 degrees
6 degrees
Minimum elevator, pallet jack, and floor loading capacity
Flooring for Oracle Exadata Database Service on
Cloud@Customer
Racks
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Ensure that the Exadata Database Service on Cloud@Customer system is installed on raised
flooring that is capable of supporting the Exadata Rack.
The site floor and the raised flooring must be able to support the total
weight of the Exadata Database Service on Cloud@Customer rack that you have selected. Review
specifications accordingly.
Electrical Power for Oracle Exadata Database Service on
Cloud@Customer Racks
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Exadata Database Service on Cloud@Customer can operate effectively over a wide range of
voltages and frequencies.
Reliability of Power Sources
Each rack must have a reliable power source. Damage can occur if the
voltage ranges are exceeded. Electrical disturbances such as the following can
damage Exadata Database Service on Cloud@Customer:
Fluctuations caused by brownouts
Wide and rapid variations in input voltage levels or in input
power frequency
Electrical storms
Faults in the distribution system, such as defective
wiring
To protect Exadata Database Service on Cloud@Customer from such disturbances, you should have a
dedicated power distribution system, power-conditioning equipment, and lightning
arresters or power cables to protect from electrical storms.
Power Distribution Unit Specifications
Each rack has two pre-installed power distribution units (PDUs). The PDUs accept different power sources. You must choose the type of PDU that is correct for your data center and the Exadata Database Service on Cloud@Customer rack. For a specific configuration please refer to Oracle Exadata Configuration Assistant
The following list outlines the available PDUs for Exadata Database Service on Cloud@Customer, depending on your region. Follow each of the links to access detailed
specifications for each PDU type:
To prevent catastrophic failures, design the input power sources to ensure that
adequate power is provided to the PDUs.
Use dedicated AC breaker panels for all power circuits that supply power to the PDU.
When planning for power distribution requirements, balance the power load between
available AC supply branch circuits. In the United States of America and Canada,
ensure that the overall system AC input current load does not exceed 80 percent of
the branch circuit AC current rating.
Note
Electrical work and installations must comply with applicable local, state, or
national electrical codes.
PDU power cords are 4 meters (13.12 feet) long, and 1β1.5 meters (3.3β4.9 feet)
of the cord is routed within the rack cabinet. The installation site AC power
receptacle must be within 2 meters (6.6 feet) of the rack.
Circuit Breaker Requirements
If computer equipment is subjected to repeated power interruptions and fluctuations,
then it is susceptible to a higher rate of component failure.
You are responsible for supplying the circuit breakers. One circuit breaker is
required for each power cord. In addition to circuit breakers, provide a stable
power source, such as an uninterruptible power supply (UPS) to reduce the
possibility of component failures.
Use dedicated AC breaker panels for all power circuits that supply power to the
server. Servers require grounded electrical circuits.
Note
Electrical work and installations must comply with applicable local, state, or
national electrical codes.
Electrical Grounding Guidelines
The cabinets for Oracle Exadata Rack are shipped with grounding-type power cords.
Always connect the cords to grounded power outlets.
Check the grounding type, because different grounding methods can be
used, depending on your location.
Refer to documentation such as IEC documents for the correct grounding
method.
Ensure that the facility administrator or qualified electrical engineer verifies
the grounding method for the building, and performs the grounding work.
Maximum ambient temperature is reduced by 1 degree
Celsius for every 300 meters of altitude over 900 meters above sea
level.
Temperature and Humidity Guidelines
To minimize the chance of downtime because of component failure, set conditions to
the optimal temperature and humidity ranges. Maintaining an Exadata Database Service on Cloud@Customer system for extended periods at or near the operating limits can
significantly increase the potential for hardware component failure.
The ambient temperature range of 21β23 degrees Celsius (70β74 degrees Fahrenheit) is
optimal for server reliability and operator comfort. Most computer equipment can
operate in a wide temperature range, but near 22 degrees Celsius (72 degrees
Fahrenheit) is desirable because it is easier to maintain safe humidity levels.
Operating in this temperature range provides a safety buffer in case the air
conditioning system fails for some time.
The ambient relative humidity range of 45β50 percent is suitable for safe data
processing operations. Most computer equipment can operate in a wide range (20β80
percent), but the range of 45β50 percent is recommended for the following
reasons:
The optimal range helps protect computer systems from corrosion problems
associated with high humidity levels..
The optimal range provides the greatest operating time buffer in case the
air conditioning system fails for some time.
The optimal range avoids failures or temporary malfunctions
caused by interference from static discharges that can occur when relative
humidity is too low. Electrostatic discharge (ESD) is easily generated, and
hard to dissipate in areas of low relative humidity, such as below 35
percent. ESD becomes critical when humidity drops below 30 percent
Ventilation for Oracle Exadata Database Service on
Cloud@Customer Racks
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Always provide adequate space in front and behind the rack for proper
ventilation.
Do not obstruct the front or rear of the rack with equipment or objects that
might prevent air from flowing through the rack. Each Exadata Database Service on Cloud@Customer rack
draws cool air in through the front of the rack, and discharges warm air out the rear of
the rack. There is no air flow requirement for the left and right sides, because of
front-to-back cooling.
Each Exadata Database Service on Cloud@Customer rack is designed to function while installed
in a natural convection air flow. To ensure adequate air flow, allow a minimum clearance
of 1219.2 mm (48 inches) at the front of the server, and 914 mm (36 inches) at the rear
of the server for ventilation.
Use perforated tiles, approximately 400 CFM/tile, in front of the rack for
cold air intake. The tiles can be arranged in any order in front of the rack, as long as
cold air from the tiles can flow into the rack. Inadequate cold air flow could result in
a higher inlet temperature in the servers because of exhaust air recirculation. The
following is the recommended number of floor tiles:
Four floor tiles for an Exadata Database Service on Cloud@Customer Full Rack.
Three floor tiles for an Exadata Database Service on Cloud@Customer Half Rack.
One floor tile for an Exadata Database Service on Cloud@Customer Quarter Rack or
Base System.