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Replacing an AC Power Supply
Citrix NetScaler MPX platforms can accommodate two power supplies, except the MPX
22040/22060/22080/22100/22120 platform which can accommodate four power
supplies. All NetScaler appliances function properly with a single power supply, except
the MPX 22040/22060/22080/22100/22120 platform which needs two power supplies
for proper operation. The other power supplies serves as a backup. All power supplies
must be of the same type (AC or DC).
Note: If the appliance has only one power supply, you have to shut down the
appliance before replacing the power supply. If the appliance has two power supplies,
you can replace one power supply without shutting down the appliance, provided the
other power supply is working, and if the appliance has four power supplies, you can
replace one or two power supplies without shutting down the appliance, provided the
other two power supplies are working.
To install or replace an AC power supply on a Citrix NetScaler appliance
1. Align the semicircular handle perpendicular to the power supply. Loosen the
thumbscrew and press the lever toward the handle and pull out the existing power
supply, as shown in the following figure.
Note: The illustration in the following figures might not represent the actual
NetScaler appliance.
Figure 1-11. Removing the Existing AC Power Supply
2. Carefully remove the new power supply from its box.
3. On the back of the appliance, align the power supply with the power supply slot.
4. Insert the power supply into the slot and press against the semicircular handle
until you hear the power supply snap into place.
Chapter 1 Introduction to the Hardware Platforms
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