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Chapter 1 Safety and Tools 1-3
Caution – The CAUTION signal indicates a hazardous situation could result in minor or
moderate personal injury if the user does not perform the procedure correctly. This signal
also indicates that damage to the product or other property may occur if the user does not
perform the procedure correctly.
1.2.2 Alert Labels
When performing the maintenance, observe the alert labels affixed on the server.
Task Warning
Maintenance Equipment failure
Only authorized service engineers should perform the work listed below. Otherwise, an equipment
failure may result.
• Unpacking or installing products, such as an optional adapter, delivered to the customer
• Connecting or disconnecting an external interface cable
Equipment damage
Before handling the components, be sure to connect the clip of the antistatic wrist strap and the
antistatic mat to the server grounding port, and attach the band of the wrist strap to one of your
wrists. Place the component on the grounded antistatic mat with your hand wearing the antistatic
wrist strap, to eliminate static electricity in advance of installation. Failure to take these antistatic
measures might result in serious damage.
Data destruction
Confirm the following items before performing the maintenance work. Otherwise, data may be
destroyed.
• Confirm the items listed below before turning off the power.
- All applications have completed processing.
- No user is using the equipment.
- When the main unit power is turned off, the POWER LED on the operation panel is turned off.
Be sure to confirm that the POWER LED is off before turning off the main power
(uninterruptible power supply [UPS], power distribution box, main line switch, etc.).
If necessary, back up files before turning off the system power.
• Do not forcibly stop a domain that is operating normally.
• Do not disconnect the power cord from the AC power input while power is being supplied.
Emission of Laser Beam
The server contains modules that generate invisible laser radiation. Laser beams are generated while
the equipment is operating, even if an optical cable is disconnected or a cover is removed. Do not
look at any laser light source directly or through an optical apparatus (e.g., magnifying glass,
microscope).