v Confirm Fibre Channel cable loop size. (IBM specifications call for at least 3-inch
cable loops, but it is recommended that you use 6-inch cable loops or longer.)
v Ensure proper Fibre Channel cable management.
v Ensure proper air flow and temperature for all components in your DS4000
storage configuration.
Note:
You can find details on many of these inspection and maintenance
responsibilities in the appropriate sections of this document.
In addition to these inspection and maintenance responsibilities, IBM also strongly
recommends DS4000 training for staff that supports DS4000 storage configurations.
Although training is not a part of the Health Check process, DS4000 training
reduces the potential for configuration problems and contributes to the overall
health of the system.
Removing and replacing the front bezel
The storage subsystem is equipped with a front bezel, which you must remove in
order to access the power supply and fan units and interconnect-battery unit, or to
view the indicator LEDs on the front of those units.
Figure 72 shows the following steps to remove and replace the front bezel.
1. Remove the front bezel by grasping the sides and pulling the cover toward you.
2. Install the front bezel by aligning the pins on the storage subsystem chassis
with the spring-steel retainers on the cover, and then press the cover toward the
chassis until the pins snap into place.
Turning the storage subsystem on and off
This section contains instructions for turning the storage subsystem on and off
under normal and emergency situations.
ds48025
Figure 72. Installing the front bezel
104 IBM System Storage DS4800 Storage Subsystem: Installation, User’s, and Maintenance Guide
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