Stratus ftserver 3300, Руководство по планировке объекта

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Electrical (AC) Power Planning 4-1
Chapter 4
Electrical (AC) Power Planning
4-
For information about planning appropriate AC electrical power for your ftServer
systems, see:
•
“Redundant Power Sources” on page 4-1
•
“AC Power Service Requirements” on page 4-2
•
“Power Outlet Requirements” on page 4-5
•
“Connecting a System Directly to Two Separate Power Sources” on page 4-7
•
“Stratus-Supplied Power Cords” on page 4-9
Related Topics
•
Chapter 5, “UPS Planning”
•
Chapter 7, “ftServer Rack Configuration Planning”
Redundant Power Sources
ftServer systems and storage enclosures require at least two separate and
independent AC power sources: an
A-side power source and the B-side power source.
Either side must be capable of continuing to provide power if power to the other side is
lost.
The A-side power source provides power to each system and to one half of each
storage enclosure, as well as to components that do onot rquire two sources of power:
a modem, tape drive, or monitor. If you use a universal power supply (UPS), the UPS
is the A-side power source.
The B-side power source also provides power to each system, in stand-by mode (the
B-side power source is used if power to the A-side source is interrupted), and provides
power to the other half of each storage enclosure.
The wattage required from the A-side power source will always be equal to or greater
than the wattage required from the B-side power source.