5.6 HP StorageWorks X9320 Network Storage System Administrator Guide (AW542-96006, June 2011)

WARNING! To reduce the risk of electric shock or damage to the equipment:
• Allow the product to cool before removing covers and touching internal components.
• Do not disable the power cord grounding plug. The grounding plug is an important safety
feature.
• Plug the power cord into a grounded (earthed) electrical outlet that is easily accessible at all
times.
• Disconnect power from the device by unplugging the power cord from either the electrical
outlet or the device.
• Do not use non-conductive tools that could bridge live parts.
• Remove all watches, rings, or loose jewelry when working in hot-plug areas of an energized
device.
• Install the device in a controlled access location where only qualified personnel have access
to the device.
• Power off the equipment and disconnect power to all AC power cords before removing any
access covers for non-hot-pluggable areas.
• Do not replace non-hot-pluggable components while power is applied to the product. Power
off the device and then disconnect all AC power cords.
• Do not exceed the level of repair specified in the procedures in the product documentation.
All troubleshooting and repair procedures are detailed to allow only subassembly or
module-level repair. Because of the complexity of the individual boards and subassemblies,
do not attempt to make repairs at the component level or to make modifications to any printed
wiring board. Improper repairs can create a safety hazard.
WARNING! To reduce the risk of personal injury or damage to the equipment, the installation
of non-hot-pluggable components should be performed only by individuals who are qualified in
servicing computer equipment, knowledgeable about the procedures and precautions, and trained
to deal with products capable of producing hazardous energy levels.
WARNING! To reduce the risk of personal injury or damage to the equipment, observe local
occupational health and safety requirements and guidelines for manually handling material.
CAUTION: Protect the installed solution from power fluctuations and temporary interruptions with
a regulating Uninterruptible Power Supply (UPS). This device protects the hardware from damage
caused by power surges and voltage spikes, and keeps the system in operation during a power
failure.
CAUTION: To properly ventilate the system, you must provide at least 7.6 centimeters (3.0 inches)
of clearance at the front and back of the device.
CAUTION: Schedule physical configuration changes during periods of low or no activity. If the
system is performing rebuilds, RAID migrations, array expansions LUN expansions, or experiencing
heavy I/O, avoid physical configuration changes such as adding or replacing hard drives or
hot-plugging a controller or any other component. For example, hot-adding or replacing a controller
while under heavy I/O could cause a momentary pause, performance decrease, or loss of access
to the device while the new controller is starting up. When the controller completes the startup
process, full functionality is restored.
CAUTION: Before replacing a hot-pluggable component, ensure that steps have been taken to
prevent loss of data.
Device warnings and precautions 137