EK–SMCPR–UG. A01
5–1
5
Replacing Components
This chapter describes the procedures to remove and install the field replaceable units (FRUs) in
the RA8000/ESA12000. The FRUs are listed and shown in the last section of the chapter.
5.1
Replacing an Array Controller, Cache Module, or External Cache Battery
NOTE
For dual-redundant-array controller configurations, you can
use FRUTIL to replace the “other controller,” to replace the
other cache module, and to replace the external cache
battery with the cabinet powered on. See the appropriate
HSG80 Array Controller ACS Version 8.x Maintenance and
Service Guide or the HSZ80 Array Controller ACS Version
8.x Maintenance and Service Guide for the procedures.
5.1.1 Tools Required
You need the following tools to remove or replace the array controller module:
•
ESD (electrostatic discharge) strap
•
Small blade screwdriver for Trilink and external cache battery cable fasteners
5.1.2 Precautions
In general, you should follow routine ESD protection procedures when handling array
controller modules and cache modules and when working around the cabinet and shelf
that houses the modules.
Follow these guidelines to further minimize ESD problems:
•
Use ESD wrist straps, antistatic bags, and grounded ESD mats when handling array
controllers and cache modules
•
Attach the lead on the ESD strap to a convenient cabinet grounding point
•
After removing a module from the shelf, place the module into an approved antistatic
bag or onto a grounded antistatic mat
•
Remain grounded while installing a replacement module
