Product manual

Galaxy G3G12 / G3G16 - Installation and Hardware Reference Manual
279 Section 8 Troubleshooting
Power Supplies
Galaxy3Gs are equipped with redundant power supplies. The
advantage of dual power supplies is that, should one fail, the
other will continue powering the subsystem until the faulty one
can be replaced. Galaxy3G is capable of operating on a single
power supply. As a result, if one power supply fails you must
watch the front panel LEDs or the Galaxy Array Manager in
order to become aware of the condition.
The power supplies are hot-swappable, meaning you can leave
the Galaxy3G running when you replace the bad one. Be
careful, however, to remove the faulty power supply and not the
good one, or Galaxy3G will come to an immediate stop and your
data will be unavailable until the system is powered and booted
again.
As noted above, if a power supply fan fails, you must replace the
power supply. Without the fan to cool it, the power supply will
overheat and eventually fail anyway.
No tools are required for the procedure. See the maintenance
chapter for instructions on replacing a power supply.