BX900 S2 Upgrade and Maintenance Manual 53
Basic hardware procedures
Thus 3+3 redundancy is supported; the system continues to
run if one source fails, provided the remaining 3 power
supplies are sufficient to deliver the required power.
With 4 PSUs, you must connect units 2 and 3 to the first source
(phase) and units 5 and 6 to the second. Thus 2+2 redundancy
is supported; the system continues to run if one source fails,
provided the remaining 2 power supplies are sufficient to
deliver the required power.
Power system with 3 AC sources (phases) available
With 6 PSUs, you must connect units 1 and 4 to the first AC
source (phase), units 2 and 5 to the second, and units 3 and 6
to the third. Thus 4+2 redundancy is supported; the system
continues to run if one source fails, provided the remaining 4
power supplies are sufficient to deliver the required power.
With 3 PSUs, you must connect each one to a different source.
Thus 2+1 redundancy is supported; the system continues to
run if one source fails, provided the remaining 2 PSUs are
sufficient to deliver the required power.
Ê Press the On / Off button or use the management blade web interface to
start up the system unit.
Ê Ensure that the power-on indicator above the On / Off button is lit green.
I For more information see "LEDs on the control panel" on page 181.
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