Caution: Ensur
e that batteries ar
e replaced in accordance with the
instructions in the manual or their relevant manual.
■
Only replace a battery with one of the pr
escribed type. Use of the wrong battery type
or incorrect replacement may result in an explosion.
■
Dispose of batteries according to the laws and regulations of your region.
■
French:
●
Seulement remplacer une batterie avec le type recommandé. L'utilisation du
mauvais type de batterie ou une mauvaise installation peut entraîner une
explosion.
●
Jetez les batteries conformément aux lois et règlements de votre région.
■
Chinese:
■
Japanese:
Data protection precautions
To help ensur
e the protection of data and safe handling of equipment, follow these
guidelines.
■
Each storage enclosure contains multiple removable hard disk drive (HDD) modules.
These units are fragile. Handle them with care and keep them away from strong
magnetic 
elds.
■
All supplied plug-in modules and blanking plates must be in place to complete the
internal circuitry and enable air to ow corr
ectly around an enclosure.
■
Using the system for more than a fe
w minutes with modules or blanking plates
missing can cause an enclosure to overheat, leading to power failure and data loss.
Such use may invalidate the warranty.
■
A loss of data can occur if a hard drive module is removed. Immediately replace any
modules that are removed. If a module is faulty, replace it with one of the same type,
of at least the same capacity and speed.
■
Always shut down the system before it is moved, switched o, or reset.
Data protection precautions
Chapter 2: Safety information
Hitachi NAS Platform and Hitachi Unied Storage Series 4000 Hardware Reference 20