Extreme Networks ExtremeWare XOS 11.3, Manual

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Understanding Power Supply Management
ExtremeWare XOS 11.3 Concepts Guide
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For all other combinations of 220V AC and 110V AC PSUs, ExtremeWare XOS maximizes system
power by enabling all PSUs and budgeting each PSU at 110V AC.
NOTE
If you are running ExtremeWare XOS 11.2 or 11.1 and mix PSUs with 110V and 220V AC inputs, the switch
budgets all PSUs as if they have 110V AC inputs.
Overriding Automatic Power Supply Management
You can override automatic power supply management to enable a PSU with 110V AC inputs that
ExtremeWare XOS disables if the need arises, such as for a planned maintenance of 220V AC circuits. If
the combination of AC inputs represents one of those listed in
Table 13 , you can turn on a disabled PSU
using the following command:
configure power supply <ps_num> on
NOTE
If you override automatic power supply management, you may reduce the available power and cause one or more I/O
modules to power down.
To resume using automatic power supply management on a PSU, use the configure power supply
<ps_num> auto
command. The setting for each PSU is stored as part of the switch configuration.
To display power supply status and power budget information use the
show power
and
show power
budget
commands.
Using Power Supplies—Summit X450 Switch Only
On the Summit X450 switch, ExtremeWare XOS reports when the PSU has power or has failed. The
SummitX450 switch supports an internal power supply with a range of 90V to 240V AC power as well
as an external redundant power supply. The Extreme Networks External Power System (EPS) allows
you to add a redundant power supply to the Summit X450 switch to protect against a power supply
failure. The EPS consists of a tray (EPS-T) that holds one or two EPS-160 power supplies. The EPS-160
provides 100V to 240V AC power. Each EPS-160 power supply provides one-to-one redundancy to an
attached SummitX450 switch.
Table 13: PSU combinations where 110V PSUs are disabled
Number of PSUs with
220V AC Inputs Number of PSUs with
110V AC Inputs
2 1
3 1
3 2
4 1
4 2
5 1