Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

Announcement: Try the Ask AI chatbot for answers to your technical questions about Juniper products and solutions.

close
header-navigation

Solutions

Featured solutions AI Campus and branch Data center WAN Security Service provider Cloud operator Industries
Campus and Branch

Welcome to the NOW Way to Wi-Fi

Take your networking performance to new heights with a modern, cloud-native, AI-Native architecture. Only Juniper can help you unleash the full potential of Wi-Fi 7 with our AI-Native platform for innovation.
Prepare for liftoff
Business intelligence analyst dashboard on virtual screen. Big data Graphs Charts.

AI Data Center Networking

Juniper’s AI data center solution is a quick way to deploy high performing AI training and inference networks that are the most flexible to design and easiest to manage with limited IT resources.
Find out more
Enterprise AI-Native Networking

Enterprise AI‑Native Routing

Juniper's Ai-Native routing solution delivers robust 400GbE and 800GbE capabilities for unmatched performance, reliability, and sustainability at scale.
Explore enterprise routing
Zero trust security

Ops4AI Lab

Visit our lab in Sunnyvale, CA and see our AI data center solution for yourself. You can try out your own model’s functionality and performance, too.
Visit the lab
Enterprise AI-Native Networking

Enterprise AI‑Native Routing

Juniper's Ai-Native routing solution delivers robust 400GbE and 800GbE capabilities for unmatched performance, reliability, and sustainability at scale.
Explore enterprise routing
Higher Education

Shaping Student Experiences: The NOW Way to Build Higher Education Networks

Juniper Networks CIO Sharon Mandell and a virtual summit of C-level IT leaders from prestigious institutions discuss ongoing efforts to support digital transformation on campus.
Watch now
Hand on tablet with healthcare overlay of graphics

Security in healthcare

In this IDC Spotlight report, discover how AI networking can automate and strengthen a healthcare ecosystem to defeat criminals and prevent loss. 
Gain insights into ecosystem security
Retail

The Future of In-Store Technologies

Retail experts Kevin McCartan, Senior IT Service Delivery Engineer at Musgrave; Jack Stratten of Insider Trends; and Christian Gilby, Senior Director of Product Marketing at Juniper Networks, discuss customer experiences.
See the future

Products

Wireless access Wired access SD-WAN / SASE Routing and switching Security Mist AI™ Management software Network operating system Blueprint for AI-Native Acceleration Optics
  • Operations
ACX7020 router

Juniper ACX7020 Cloud Metro Access Router

Legacy networks simply cannot meet the demands of today’s rapidly evolving metro landscape. Unlock a new generation of highly scalable architectures and automated operations with the Juniper ACX7020. 
Learn more
EX4000 Ethernet Switch

Next-gen AI-Native EX4000 line of switches

Lack of AI innovation from your current networking vendor slowing you down? Embrace Juniper’s cloud-native, AI-Native access switches that support every level and layer, across nearly every deployment.
Discover how
The Q and AI text with an image of Bob Friday and Kedar Dhuru.

The Q&AI Podcast

Delivering practical solutions and enriching discussions, this podcast series is a vital resource for those seeking an in-depth exploration of AI's transformative potential.
Catch the latest episode

Services

Services
Services AI Care

Juniper AI Care Services Revolutionize Your Service Experience

Our industry-first AI-Native services couple AIOps with our deep expertise across the full network life cycle. You can move from reactive response to proactive insight and action.
Explore AI Care Services
Services AI Data Center

Juniper AI Data Center Deployment Services Optimize Your AI Model Runs

We use our expertise and validated designs to help design, deploy, validate and tune networks, including GPUs and storage, to get the most from your AI infrastructure operation.
Learn about AI Data Center Deployment Services

Partners

Partners

Support and Documentation

Support and Documentation

Learn

About Juniper Training Events The Feed Resources Technology learning topics Thought leadership and insights
Audience raising hands up while businessman is speaking in training at the office.

Juniper certification and training news

See the latest
Ringing of the bell

All global events

See the latest
AI-native-now

AI-Native NOW event series

Explore events
AINN AI Innovation Impact Virtual Event

AI-Native NOW: AI Innovation and Impact

Register NOW
Juniper's Christina Hendrix at the head of a conference table. With the text "The NOW Way to Network" overlayed, with "NOW" emphasizing the "O" in green color.

The NOW Way to Network

Watch the video series
AI Native Now

Executive insights

Dive deep with leading experts and thought leaders on all the topics that matter most to your business, from AI to network security to driving rapid, relevant transformation for your business.
Learn more
A keynote speaker giving a presentation at a conference. There are dozens of people sitting around them. The presentation is displayed via projector on all the walls in the room.

Leadership voices

Juniper Networks’ leaders operate on the front lines of creating the network of the future. Take a look around to see what’s on their minds.
Watch now
Bob Friday and Jessica Garrison speaking

Bob Friday Talks

Join Bob as he ventures into all the knowns -- and -- unknowns -- of AI.
Catch the latest episode
Documentation
Menu
License Guide
Quick Starts
Validated Designs
Home Documentation SRX4700 SRX4700 Firewall Hardware Guide Maintain Components

SRX4700 Firewall Hardware Guide

keyboard_arrow_up
close
keyboard_arrow_left
SRX4700 Firewall Hardware Guide
Table of Contents Expand all
list Table of Contents
file_download PDF
{ "lLangCode": "en", "lName": "English", "lCountryCode": "us", "transcode": "en_US" }
English
keyboard_arrow_right

SRX4700 SSD Maintenance

date_range 31-Mar-25
arrow_backward
arrow_forward

This topic explains how to replace a solid state-drive (SSD) on your SRX4700 Firewall.

Replace an SRX4700 Firewall SSD

The two SSDs installed in the SRX4700 Firewall are field-replaceable units (FRUs). SSDs are not hot-swappable, so you need to power off the firewall to replace an SSD.

Note: You must install the 1T SSD in slot SSD0 (primary slot) and the 2T SSD in slot SSD1 (secondary slot).

Ensure that you have the following equipment available:

  • Electrostatic discharge (ESD) grounding strap

  • An antistatic bag or an antistatic mat

  • SSD to replace

Remove an SSD from the SRX4700 Firewall

You need to power off the SRX4700 Firewall to remove an SSD.

  1. Wrap and fasten one end of the ESD grounding strap around your bare wrist, and connect the other end of the strap to one of the ESD points on the chassis.
  2. Place the antistatic bag or the antistatic mat on a flat, stable surface.
  3. Place your finger on the SSD front locker and press the front locker to unlock the SSD front stopper.
    Callout Component

    1

    SSD front locker

    2

    SSD front stopper

  4. Pull the SSD firmly to slide it out of its slot.
  5. Place the SSD in the antistatic bag or on the antistatic mat placed on a flat, stable surface.

Install an SSD in the SRX4700 Firewall

You need to power off the SRX4700 Firewall to install a SSD.

  1. Wrap and fasten one end of the ESD grounding strap around your bare wrist, and connect the other end of the strap to one of the ESD points on the chassis.
  2. Slide the SSD gently into its slot until it is fully seated. Press the SSD front stopper to lock the SSD into its slot.

Replace the 1T SSD in the SRX4700 Firewall

You need to power off the SRX4700 Firewall to replace the 1T SSD (primary SSD).

Note: 1T SSD must be installed only in slot SSD0.

If 1T SSD goes faulty or if the software image on it is corrupted, the firewall will boot from 2T SSD (secondary SSD).

  1. Issue the request vmhost power-off operational mode CLI command. This command shuts down the firewall gracefully. You can manually power off the firewall using the power button located on the front panel of the firewall.
  2. Remove the 1T SSD from slot SSD0. See, Remove an SSD from the SRX4700 Firewall.
  3. Install the replacement 1T SSD in slot SSD0. See, Install an SSD in the SRX4700 Firewall.
  4. Power on the firewall using the power button located on the front panel of the firewall. Firewall will boot from 1T SSD with the factory-default image and configuration installed on it.
  5. (Optional): To synchronize the image and configuration from the 2T SSD to the 1T SSD:
    1. Issue the request vmhost reboot disk2 CLI command. This command reboots the firewall from the 2T SSD.
    2. Issue the request vmhost snapshot recovery CLI command. This command takes a snapshot from the 2T SSD to the 1T SSD.
    3. Issue the request vmhost reboot disk1 CLI command. This command reboots the firewall from the 1T SSD.
  6. Issue the show vmhost hardware CLI command to verify the details of the SSDs.

Replace the 2T SSD in the SRX4700 Firewall

You need to power off the SRX4700 Firewall to replace the 2T SSD (secondary SSD).

Note: 2T SSD must be installed only in slot SSD1.
  1. Issue the request vmhost power-off operational mode CLI command. This command shuts down the firewall gracefully. You can manually power off the firewall using the power button located on the front panel of the firewall.
  2. Remove the 2T SSD from the slot SSD1. See, Remove an SSD from the SRX4700 Firewall.
  3. Install the replacement 2T SSD in slot the SSD1. See, Install an SSD in the SRX4700 Firewall.
  4. Power on the firewall using the power button located on the front panel of the firewall. Firewall boots from the 1T SSD.
  5. To synchronize the image and configuration from the 1T SSD to the 2T SSD, issue the request vmhost snapshot CLI command. This command takes a snapshot from the 1T SSD to the 2T SSD.
  6. Issue the show vmhost hardware CLI command to verify the details of the SSDs.

Replace the 1T and 2T SSDs from the SRX4700 Firewall

You need to power off the SRX4700 Firewall to replace the SSDs.

Note: 1T SSD must be installed only in slot SSD0 and 2T SSD only in slot SSD1.
  1. Issue the request vmhost power-off operational mode CLI command. This command shuts down the firewall gracefully. You can manually power off the firewall using the power button located on the front panel of the firewall.
  2. Remove the 1T SSD from the slot SSD0 and 2T SSD from the slot SSD1. See, Remove an SSD from the SRX4700 Firewall.
  3. Install the replacement 1T SSD in slot SSD0 and 2T SSD in slot SSD1. See, Install an SSD in the SRX4700 Firewall.
  4. Power on the firewall using the power button located on the front panel of the firewall. Firewall boots from 1T SSD with factory default settings and configurations.
  5. Issue the show vmhost hardware CLI command to verify the details of the SSDs.
  6. If needed, upgrade your firewall with the desired Junos OS software. After the upgrade is complete and the firewall is up and running with the upgraded Junos OS software image and configurations, issue the request vmhost snapshot CLI command to take a snapshot from the 1T SSD to the 2T SSD.
arrow_backward PREVIOUS SRX4700 Power Supply Maintenance
NEXT arrow_forward Troubleshoot the SRX4700
footer-navigation

© 1999 - 2025 Juniper Networks, Inc. All rights reserved.

Scroll to top