6.3 HP StoreAll 9300/9320 Storage Administrator Guide (AW549-96072, June 2013)

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 195