© 1999-2017 Citrix Systems, Inc. All rights reserved. p.45https://docs.citrix.com
The following components are visible on the back panel of the SDX 25100A and SDX 25160A appliance:
Two 300 GB removable solid-state drives (SSDs). The two leftmost solid-state drives store the NetScaler software. The
next two solid-state drives, of 300 GB each, store user data. The remaining four solid-state drives are reserved for future
use. These appliances are redundant array of independent disks (RAID) devices. For more information,
see http://docs.citrix.com/en-us/sdx/11/manage-monitor-appliance-network-configuration/raid-introduction.html.
Power switch, which turns power to the appliance on or off. Press the switch for less than two seconds to turn off the
power.
Two power supplies, each rated at 1000 watts, 100-240 volts. Each power supply has an LED that indicates the status of
the power supply, as described in http://docs.citrix.com/en-us/sdx/11/hardware-installation/common-hardware-
components.html.
Disable alarm button, which is functional only when the appliance has two powersupplies.
Press this button to stop the power alarm from sounding when you have plugged the appliance into only one power outlet,
or when one power supply is malfunctioning and you want to continue operating the appliance until it is repaired.
Non-maskable interrupt (NMI) Button, used at the request of Technical Support to initiate a core dump. T o press this red
button, which is recessed to preventunintentional activation, use a pen, pencil, or other pointed object. The NMI
Buttonis also available remotely over the network in the LOM GUI, in the Remote Controlmenu. For more information
about the lights out management port of the appliance, see http://docs.citrix.com/en-us/sdx/11/hardware-
installation/lights-out-management-port-lom-of-sdx.html.
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