HSG80 Array Controller V8.7 Maintenance and Service Guide
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Replacement Procedures for Model 2200 Enclosure Elements
Removing a Controller
Use the following steps to remove a controller in a dual-redundant controller
configuration.
CAUTION: ESD can easily damage the controller. Wear a snug-fitting, grounded ESD
wrist strap.
1. Connect a PC or terminal to the maintenance port of the operational controller.
The controller connected to the PC or terminal becomes “this controller”; the
controller being removed becomes the “other controller.”
2. Disable failover and take the controllers out of dual-redundant configuration with
one of the following commands:
SET NOFAILOVER
or
SET NOMULTIBUS_FAILOVER
3. Remove the program card ESD cover and program card from the “other
controller.” Save them in an antistatic bag or on a grounded antistatic mat for use
with the replacement controller.
4. Start FRUTIL with the following command:
RUN FRUTIL
5. Enter N(o) to the question about replacing the cache battery.
6. Enter 1 for the remove a controller or cache module option.
7. Enter 2 for the remove the “other controller” option.
8. Enter Y(es) to confirm the intent to remove the “other controller.”
CAUTION: Wait for FRUTIL to quiesce the device ports—indicated by an “All device
ports quiesced” message. Failure to allow the ports to quiesce might result in data
loss. Quiescing might take several minutes.
IMPORTANT: A countdown timer allows a total of 2 minutes to remove the controller. After
2 minutes, “this controller” exits FRUTIL and resumes operations. If this happens, return to
step 6 and proceed.