Juniper QFabric QFX3008-I, Manual, Page: 49 / 472

Network modules are installed in the bottom module slots on the QFX3100 Director
devices. All QFX3100 Director devices are shipped with two network modules. The network
modules are field-replaceable but not hot-swappable. See
“Installing a Network Module
in a QFX3100 Director Device” on page 316 .
Hard Disk Drive Modules
The QFX3100 Director device ships with two 2-terabyte (TB) hard disk drive (HDD)
modules that provide storage for the Director device. The four HDD modules in the two
QFX3100 Director devices participating in a Director group operate in a redundant array
of independent disks (RAID) system to synchronize directories or files across the HDD
modules.
HDD modules are installed in the upper module slots on the QFX3100 Director devices.
All QFX3100 Director devices are shipped with two HDD modules. The HDD modules are
field-replaceable and hot-swappable. See
“Installing an HDD Module in a QFX3100
Director Device” on page 318 .
AC Power Supplies
The QFX3100 Director device ships with redundant AC power supplies that provide power
for the device. The power supply slots are located on the far right side of the rear panel
of the QFX3100 Director device.
AC power supplies are field-replaceable and hot-swappable. See “Installing a Power
Supply in a QFX3100 Director Device” on page 311 .
Fan Modules
The QFX3100 Director device ships with three fan modules. The fan modules provide
cooling to the system and are installed in the fan module slots on the rear panel of the
QFX3100 Director device.
Fan modules are field-replaceable and hot-swappable. See “Installing a Fan Module in
a QFX3100 Director Device” on page 314 .
Related
Documentation
Chassis Physical Specifications for a QFX3100 Director Device on page 25
•
•
Network Modules in a QFX3100 Director Device on page 28
•
AC Power Supply in a QFX3100 Director Device on page 30
•
HDD Modules in a QFX3100 Director Device on page 29
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 QFX3000-G QFabric system.
Table 4 on page 24 lists the FRUs for the QFX3100 Director device and actions to take
before removing them.
23 Copyright © 2012, Juniper Networks, Inc.
Chapter 2: QFX3100 Overview