Juniper QFX Series User Manual

NOTE: The recovery installation process deletes the existing QFabric switch
ID on the Director device and generates another one. If you encounter any
licensing issues due to the changed QFabric switch ID, please contact the
Juniper Technical Assistance Center (JTAC).
This topic describes the two ways to perform the recovery installation:
•
Performing a Recovery Installation Using a Juniper Networks External USB Flash Drive
with Preloaded Software on page 411
•
Performing a Recovery Installation Using a Juniper Networks External Blank USB Flash
Drive on page 415
Performing a Recovery Installation Using a Juniper Networks External USB Flash Drive with
Preloaded Software
This procedure describes how to perform a recovery installation using the external USB
flash drive you received from Juniper Networks.
1. Insert the external USB flash drive supplied by Juniper Networks into the Director
device.
2. If you have access to the default partition, reboot the Director device by issuing the
request system reboot director-group command.
3. If you do not have access to the default partition, power cycle the Director device.
The following menu appears on the Director device console when the Director device
boots up:
Juniper Networks QFabric Director Install/Recovery Media
- To boot from the local disk, wait 10 seconds or press the Enter key.
- To reinstall the QFabric software on this Director device, type: install
4. Type install and then press Enter to install the software on the Director device.
Once the installation process is complete, the Director device reboots, and the following
menu appears on the Director device console:
Juniper Networks QFabric Director Install/Recovery Media
- To boot from the local disk, wait 10 seconds or press the Enter key.
- To reinstall the QFabric software on this Director device, type: install
5. Press Enter.
The Director device reboots from the local disk on which the software was just installed.
NOTE: Since the recovery installation process completely overwrites the
entire contents of the Director device, you will need to restore the required
configuration files and initial setup information. Ensure that you have this
information backed up on an external USB flash drive before you perform
the following steps.
6. Log in as root on the Director device.
411Copyright © 2012, Juniper Networks, Inc.
Chapter 33: Restoring Junos OS

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)