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HSG80 Array Controller V8.7 Maintenance and Service Guide
Replacement Procedures for Model 2200 Enclosure Elements
CAUTION: For fiber optic cables without extender clips, thin needle-nose pliers must
be used to remove the cable from the controller without potentially damaging the cable
(see Figure 4–3).
IMPORTANT: Note the following provisions before starting the replacement procedures:
•
The replacement controller hardware must be compatible with the remaining controller
hardware. Refer to the product-specific release notes that accompanied the software
release for information regarding hardware compatibility.
•
The software versions and patch levels must be the same on both controllers.
•
The replacement cache module must contain the same memory configuration as the
module being replaced.
Replacing a Controller and Cache Module in a Dual-Redundant
Controller Configuration
To replace a controller and supporting cache module in a dual-redundant controller
configuration, follow the instructions in this section for removing and installing a
controller and cache module.
Removing a Controller and Cache Module
Use the following steps to remove a controller and supporting cache module in a
dual-redundant controller configuration.
CAUTION: ESD can easily damage the controller, cache module, or DIMM. Wear a
snug-fitting, grounded ESD wrist strap.
Both cache modules must contain the same cache memory configuration.
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.