Hardware reference guide

Palo Alto Networks Maintaining the Hardware • 17
Cautions and Warnings
Chapter 3 
Maintaining the Hardware
This chapter describes how to replace disk drives, interpret LEDs, and troubleshoot hardware
problems. For more information, refer to the following topics:
• “Cautions and Warnings” in the next section
• “Disk Drive Replacement” on page 17
• “Interpreting the Port LEDs” on page 18
Cautions and Warnings
CAUTION: Disconnect all power cords before servicing the M-100.
WARNING: Risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries
according to the battery manufacturer’s instructions.
WARNING: Removal of the equipment’s top cover is to be done only by Palo Alto Networks trained
service person(s).
Disk Drive Replacement
The following section describes the procedures for removing and installing disk drives for the
M-100. You can replace a failed drive, or add new drives to expand storage capacity. When
adding drives, you should add drive pairs purchased from Palo Alto Networks in order to
maintain redundancy. For example, if you have drives installed in bays A1/A2, to add
another drive pair, you would add two new drives in bays B1/B2.

Removing a disk drive from the M-100:
1. To remove a drive, press the blue button on the drive bay to be replaced as shown in
Figure 9.
2. Gently rotate the drive bay lever away from the drive until it stops.
3. Gently pull on the lever to remove the drive from the system.
Installing a disk drive in the M-100:
1. To install a drive, press the blue button on the drive bay to release the drive bay lever.
Note: The disk drives in the front drive bays of the M-100 are hot swappable. For
details on configuring new drives, refer to the “Log Collector Storage” section of
the Palo Alto Networks Administrator’s Guide.