Hardware reference guide

Palo Alto Networks Maintaining the Hardware • 15
May 14, 2015 - Palo Alto Networks COMPANY CONFIDENTIAL
Chapter 3 
Maintaining the Hardware
This chapter describes how to replace power supplies, interpret LEDs, and troubleshoot hardware
problems. Before continuing, read “Cautions and Warnings” on page 15.
For information on servicing the hardware, refer to the following topics:
• “Cautions and Warnings” on page 15
• “Interpreting Status LEDs” on page 18
• “Replacing a Power Supply” on page 20
• “Replacing a Hard Disk or Solid State Drive” on page 22
• “Replacing the Fan Tray and Air Filter” on page 25
Cautions and Warnings
The following lists cautions and warnings that must be observed before working with the hardware.
THIS PRODUCT COMPLIES WITH 21 CFR 1040.10 and 1040.11
French Translation: CE PRODUIT EST CONFORME AUX NORMES 21 CFR 1040.10 ET 1040.11
• “General Cautions/Warnings” on page 15
• “DC Power Related Cautions/Warnings” on page 16
General Cautions/Warnings
This section describes general cautions and warnings related to working with the hardware: