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Upgrading NVS Cards on SRP Modules

This section describes how to install higher-capacity NVS cards on SRP modules. The procedure you use depends on the number of SRP modules in the system. A new NVS card will contain the software release you ordered.



Note: The new NVS card must contain the same software release that you are running on the system.

Upgrading a System That Contains One SRP Module

If the system contains only one SRP module, you must power down the system before you upgrade the NVS card. To upgrade the NVS card on a system that contains one SRP module:



Caution: If you do not use the halt command before removing or powering down an SRP, the system's NVS card may become corrupted.

  1. Enter the halt command.

See ERX System Basics Configuration Guide, Chapter 5, Managing Line Modules and SRP Modules for information about the halt command.



Warning: Do not insert any metal object, such as a screwdriver, or place your hand into an open slot or the backplane when the ERX system is on. Remove jewelry (including rings, necklaces, and watches) before working on equipment that is connected to power lines. These actions prevent electric shock and serious burns.



Caution: When handling modules, use an antistatic wrist strap connected to the ERX system's ESD grounding jack. This action helps to protect the module from damage by electrostatic discharge.

  1. Connect the antistatic wrist strap to the ESD grounding jack on your ERX system.
  2. Power down the system (see Chapter 6, Powering Up the System).
  3. Remove the SRP I/O module.
  4. Replace the NVS card on the SRP module (see Replacing an NVS Card, later in this chapter).
  5. Power up the system (see Chapter 6, Powering Up the System).

Upgrading a System That Contains Two SRP Modules

In a system that contains two SRP modules, you can upgrade the NVS cards on the SRP modules without powering down the system.



Warning: Do not insert any metal object, such as a screwdriver, or place your hand into an open slot or the backplane when the ERX system is on. Remove jewelry (including rings, necklaces, and watches) before working on equipment that is connected to power lines. These actions prevent electric shock and serious burns.



Caution: When handling modules, use an antistatic wrist strap connected to the ERX system's ESD grounding jack. This action helps to protect the module from damage by electrostatic discharge.

To upgrade the NVS cards on the SRP modules in a system that contains two SRP modules:

  1. Connect the antistatic wrist strap to the ESD grounding jack on your ERX system.
  2. Reboot the redundant SRP module.
host1#reload slot 6
  1. Immediately remove the redundant SRP module from the chassis.
  2. Replace the NVS card on this SRP module (see Replacing an NVS Card, later in this chapter).
  3. Reposition the SRP module into the chassis.
  4. When this SRP module is available, synchronize the SRP modules.
host1#synchronize
  1. When the SRP modules are synchronized, reboot the SRP module that you upgraded.
host1#reload slot 6
  1. When this SRP module is available, synchronize the SRP modules.
host1#synchronize
  1. When the SRP modules are synchronized, force the redundant SRP module to take over from the primary SRP module.
host1#srp switch
  1. Immediately remove the former primary SRP module.
  2. Repeat steps 4-8 for the former primary SRP module.

Replacing an NVS Card

To replace an NVS card on an SRP module:

  1. Obtain an antistatic container for the NVS card you will remove (see Storing Modules and Components, earlier in this chapter).
  2. With a small flathead screwdriver, remove the faceplate from the NVS card slot on the SRP module (see Figure 7-1).
  3. Use the screwdriver to depress the button next to the NVS card (see Figure 7-1).

This action releases the NVS card.


Figure 7-1 NVS card slot on SRP module
  1. Remove the NVS card and place it in the antistatic container.
  2. Insert the higher-capacity NVS card into the slot.
  3. Push the higher-capacity NVS card as far as you can in the slot.

When you push the card far enough, it will click into place.

  1. Replace the faceplate on the NVS card slot.

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