Juniper NSM4000, Hardware Manual

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4.
Pull the fan module out of the chassis.
5.
(Optional) Place the fan module in the antistatic bag or on the antistatic mat placed
on a flat, stable surface.
Installing the Fan
To install a fan in an NSM4000 appliance:
1.
(Optional) Attach an electrostatic discharge (ESD) grounding strap to your bare wrist,
and connect the strap to an external ESD point.
2.
Remove the replacement fan module from its antistatic bag.
3.
Insert the replacement fan into the slot for the fan module, as shown in
Figure 64 on page 121 , until the latch locks and you hear a clicking sound.
Figure 64: Installing a Fan
When you install a replacement fan, the cooling load is distributed back evenly across
both the fans, and the Hardware Fault LED stops blinking and the alarm turns off.
Related
Documentation
Field-Replaceable Units on the NSM4000 Appliance on page 13
•
•
Installing and Removing NSM4000 Appliance Hardware Components on page 111
Replacing the Hard Disk on an NSM4000 Appliance
The NSM4000 appliance ships with six hard disk drives in a RAID 10 array configuration.
The hot-swappable drives are externally accessible in field-replaceable trays. You can
remove and replace a hard disk without powering off the appliance or disrupting any
functions performed by the appliance. If a hard drive fails, the Hard Disk Fault LED on the
hard disk turns on and an alarm sounds.
121 Copyright © 2016, Juniper Networks, Inc.
Chapter 12: Replacing Hardware Components