Electrical precautions
To help ensure your safety and the safe handling of equipment, follow these guidelines.
■
Provide a suitable power source with electrical overload protection to meet the power
requirements of the entire system (the server/cluster, and all storage subsystems and
switches). The power requirements per cord are - North America: 2 phase, 208Vac,
24A max; 1 phase 110Vac, 16A max. Europe: 230Vac, 16A max.
■
Provide a power cord that is suitable for the country of installation (if a power cord is
not supplied).
■
Power cords supplied with this server or system may be less than 1.5m in length.
These cords are for use with a power distribution unit (PDU) which is mounted inside
the 19 inch rack. If you require longer cables, please contact your local sales
representative.
■
Provide a safe electrical ground connection to the power cord. Check the grounding of
an enclosure before applying power.
■
Only operate the equipment from nominal mains input voltages in the range 100 -
240Vac, 6A max, 50/60Hz.
Caution: T
urn 
o all power supplies or remove all power cords before
undertaking servicing of the system.
■
Unplug a system component if it needs to be moved or if it is damaged.
Note: For additional data pr
otection, Hitachi r
ecommends that you use an
external UPS to power the server. Also, each of the redundant power
supplies in the server and in the storage subsystems should be operated
from a dierent mains power circuit in order to provide a degree of
protection from mains power supply failures. In the event that one circuit
fails, the other continues to power the server and the storage subsystem.
Battery precautions
T
o ensur
e your safety and the safe handling of batteries, follow these handling
guidelines.
Electrical precautions
Chapter 2: Safety information
Hitachi NAS Platform and Hitachi Unied Storage Series 4000 Hardware Reference 19