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ERX 8.0.x Hardware Guide
CAUTION: Ifyoudonotusethehalt command before removing or powering down
an SRP module, t
he system’s NVS card can become corrupted.
To upgrade the NVS card on a system that contains one SRP modu le:
1. Enter the halt command.
See JUNOSe System Basics Configuration Guide, Chapter 6, Managing Modules for
information about the halt com m and.
WARNING: Do not
insert any metal object, such as a screwdriver, or place your
hand into an open slot or the backplane when the router is on. Remove jewelry
(including r ings, necklaces, and watches) before working on equipment that is
connected to p
ower lines. The se actions prevent electric shock and serious burns.
CAUTION: When handling modules, use an antistatic wrist strap connected to the
router’s ESD grounding jack. This action helps to protect the module from damage
by electrosta
tic discharge.
2. Connect the antistatic wrist strap to the ESD grounding jack on the router.
3. Power down the system.
4. Remove the SRP
module.
5. Replace the NVS card on the SRP module. (See “Replacing an NVS Card” on
page 89.)
6. Power up the system. (See “Powering Up ERX Rou te rs” on page 73.)
Upgrading a System That Contains Two SRP Modules
In a system that c on tains two SRP modu les, you can upgrade the N VS cards
on the SRP mo d
ules without powering down the system.
WARNING: Do not insert any metal object, such as a screwdriver, or place your
hand into an o
pen slot or the backplane when the router is on. Remove jewelry
(including r ings, necklaces, and watches) before working on equipment that is
connected to power lines. These actions prevent electric shock and serious burns.
88 Upgrading NVS Cards on SRP Modules