Juniper QFX Series User Manual

Figure 13 on page 29 shows the network module.
Figure 13: Network Module in a QFX3100 Director Device
g050057
Captive screws
Related
Documentation
Installing a Network Module in a QFX3100 Director Device on page 316•
• Network Module Port LEDs on a QFX3100 Director Device on page 383
HDD Modules in a QFX3100 Director Device
The two 2-terabyte (TB) hard disk drive (HDD) modules in each QFX3100 Director device
provide storage for the Director device and the QFX3000 QFabric System. 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.
Each HDD module can be installed in one of the two top slots on the front panel of the
QFX3100 Director device. The QFX3100 Director device is shipped with two HDD modules.
HDD modules are field-replaceable units (FRUs).
Related
Documentation
Installing an HDD Module in a QFX3100 Director Device on page 318•
Fan Modules in a QFX3100 Director Device
Fan modules provide cooling to a QFX3100 Director device. All QFX3100 Director devices
are shipped with three fan modules installed in the fan module slots on the rear panel
of the chassis. See Figure 14 on page 30.
29Copyright © 2012, Juniper Networks, Inc.
Chapter 2: QFX3100 Overview

Juniper QFX Series Specifications

General

Category	Switch
Series	QFX
Form Factor	1U, 2U, and modular chassis options
Power Supply	Redundant, hot-swappable power supplies
Cooling	hot-swappable fans
Virtual Chassis	Supported on certain models
Typical Use	Data center, cloud
Operating System	Junos OS
Management	CLI
Key Features	High performance, low latency, automation
Latency	Sub-microsecond latency
Port Density	Varies by model (e.g., QFX5100: up to 48x10GbE + 6x40GbE)