
6–16 HSG80 User’s Guide
Upgrading to a Dual-Redundant Controller Configuration
Use the following steps to upgrade a single-configuration subsystem to
a dual-redundant configuration subsystem. To replace failed
components, see Chapter 5, “Replacement Procedures,” for more
information. Before you complete this procedure, you’ll need the
following items:
Controller with the same software version and patch level that’s
installed on the subsystem’s current single controller
Cache module with the same memory configuration that’s installed
in the current cache module
ECB storage building block (SBB) for a dual-redundant
configuration
ECB cable
Installing a New Controller, Cache Module, and ECB
Use the following steps to install a new controller, cache module and
ECB:
1. Connect a PC or terminal to the controller’s maintenance port. The
controller to which you’re connected is “this controller”; the controller
that you’re installing is the “other controller.”
2. Start FRUTIL with the following command:
RUN FRUTIL
FRUTIL displays the following:
Do you intend to replace this controller’s cache battery? Y/N
3. Enter N(o). FRUTIL displays the FRUTIL Main menu:
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 ->
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