Dell EMC VMAX 250F, Руководство по планировке объекта, Страница: 91 / 132

– Lower system: 1U - 20U
– Upper system 21U - 40U
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Round or square channel openings must support M5 screws that secure EMC rails
and components. Clip nuts are provided by EMC as required.
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To ensure proper clearance and air flow to the array components, customer
supplied front doors and standard bezels, if used, must include a minimum of 2.5
inch (6.3 cm) clearance between the back surface of the door to the front surface
of the vertical NEMA rails.
Front and rear doors must also provide:
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A minimum of 60% (evenly distributed) air perforation openings.
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Appropriate access for service personnel, with no items that prevent front or
rear access to EMC components.
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Exterior visibility of system LEDs.
PDU requirements for third party racks, VMAX 250F
Customers must provide all power distribution equipment and infrastructure for a
VMAX 250F system installed in a customer rack.
General requirements:
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IEC 320-C13 outlets. Minimum quantity of six per PDU for no more than two V-
Bricks.
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Carefully plan the connection of VMAX 250F hardware to the available IEC 320-
C13 outlets such that the VMAX 250F load current does not exceed the rating of
any power distribution circuit breakers. Best practice is the circuit breaker
operating current at nominal AC input voltage should not exceed 80% of the
circuit breaker rating.
Refer to
Component power requirements, VMAX 250F on page 91 for input
requirements for each VMAX 250F component.
Refer to Power distribution equipment for third-party rack, VMAX 250F on page
94 for planning the number of connections required to support VMAX 250F
components.
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Two independent AC power zones with 4800 VA minimum rating for each zone.
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200-240VAC, 50-60 Hz, available at each IEC 320-C13 outlet.
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Ability to simultaneously turn On/Off all IEC C13 outlets within a power zone.
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Distance from any component AC inlet connection to its corresponding C13 AC
outlet can not exceed 66 inches (66 inches is the maximum AC cable length,
including routing / service loop)
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EMC does not recommend sharing the same power distribution equipment with
customer equipment or multiple VMAX 250F systems. The customer assumes all
responsibility for system power availability.
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There are no cabling requirements; however, EMC recommends to use standard
cabling diagrams as a guide to ensure load balancing.
Component cabling is performed by EMC field personnel during installation.
Component power requirements, VMAX 250F
The tables below provide the power requirements and descriptions for individual
VMAX 250F components.
Third Party Racking Option for VMAX 250F
PDU requirements for third party racks, VMAX 250F 91