IBM 9835-415, Deployment Manual

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Notes:
v Main power cables are routed to the rack by the customer, and internally routed
and connected by an IBM service representative.
v
Host-attachment cables are internally routed and connected by either the
customer or by an IBM service representative.
v All remaining cables are internally routed and connected by an IBM service
representative.
If the rear-door heat exchanger is ordered, see “Non-raised floor hose requirements
and management” on page 55 for more floor preparation steps.
Installation and safety requirements
If the cables are too long, there might not be enough room inside of the rack to
handle the extra length and the extra cable might interfere with the servicing tasks,
preventing concurrent repair.
IBM Corporate Safety restricts the servicing of your overhead equipment to a
maximum of 10 feet from the floor. Therefore, your power source must not exceed
10 feet from the floor and must be within 5 feet of the top of the rack.
Servicing any overhead equipment higher than 10 feet requires a special bid
contract. Contact your IBM Representative for more information about special bids.
Preparing for the rear-door heat exchanger
An optional rear-door heat exchanger (feature code AFR1) may be ordered to help
cool your system.
To complete the rear-door heat exchanger site preparation, follow the instructions
in “Planning for the rear-door heat exchanger” on page 38.
Power requirements
Ensure that your operating environment meets the AC-power and voltage
requirements.
The FlashSystem A9000R system is designed with backup battery modules in order
to maintain power to the storage system in the event of an AC-power loss.
The FlashSystem A9000R system has redundant main power cables. For
two-main-power-cable configuration, you must supply power from two
independent sources of electricity.
Consult with an IBM service representative to discuss power source options for the
four-main-power-cable configuration.
Note: Removing all AC power from the FlashSystem A9000R system causes an
emergency shutdown. All modified data is then saved to drives, and the system
turns off within 5 minutes.
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IBM FlashSystem A9000R Models 9835-415 and 9837-415 Deployment Guide