Specifications

Replacement Procedures 2–25
Replacing a Controller in a Dual-Redundant Controller
Configuration
Use the following steps in “Removing a Controller in a Dual-Redundant Controller
Configuration” and “Installing a Controller in a Dual-Redundant Controller
Configuration” to replace a controller.
Removing a Controller in a Dual-Redundant Controller
Configuration
Use the following steps to remove a controller:
1. Connect a PC or terminal to the maintenance port of the operational controller.
The controller connected to becomes “this controller;” the controller being removed
becomes the “other controller.”
2. Disable failover and take the controllers out of their dual-redundant configuration with
the following command:
SET NOFAILOVER
3. Remove the program card ESD cover and program card from the “other controller.”
Save them in a static-free place for the replacement controller.
4. Start FRUTIL with the following command:
RUN FRUTIL
The following display appears:
Do you intend to replace this controller’s cache battery? Y/N
5. Enter N(o). The following menu appears:
FRUTIL Main Menu:
1. Replace or remove a controller or cache module
2. Install a controller or cache module
3. Replace a PVA module
4. Replace an I/O module
5. Exit
Enter choice: 1, 2, 3, 4, or 5 ->