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Field-Replaceable Units in a QFX3100 Director Device

Field-replaceable units (FRUs) are components that you can replace at your site. The QFX3100 Director device FRUs except the network modules are hot-insertable and hot-removable: You can remove and replace them without powering off the device or disrupting the switching function of the QFabric system.

Table 1 lists the FRUs for the QFX3100 Director device and actions to take before removing them.

Table 1: FRUs in a QFX3100 Director Device


Action to Take Before Removing the Component

Network modules

You must power off the QFX3100 Director device offline before replacing a network module. See Removing a Network Module from a QFX3100 Director Device.

Hard disk drive (HDD) modules


Power supplies


Fan modules



If you have a Juniper Networks J-Care service contract, register any addition, change, or upgrade of hardware components at . Failure to do so can result in significant delays if you need replacement parts. This note does not apply if you replace existing components with the same type of component.