NEC NF2900-SR40E, User Manual, Page: 22 / 168

5
1.5 Routine Inspection of the Disk Array Unit
CAUTION
„ To clean the disk array unit, always turn off the power and also disconnect
the plugs of the power cords from AC outlets. If not, you may be electrically
shocked.
„ If a surface of the disk array unit becomes dirty, wipe the surface lightly
with a soft cloth. Wiping the surface using chemicals such as benzene and
thinner, or volatile chemicals, may cause the surface to become deformed
or discolored. In addition, note that spraying insecticide on any surface may
cause the surface to become deformed or discolored.
„
It is recommended to clean the inside of the disk array unit periodically.
This is because dust may accumulate after the disk array unit has been
used for a long time.
Contact your maintenance engineer for the cleaning of the inside of the disk
array unit.
Users must not disassemble and/or repair the disk array unit because that is
dangerous.
„ Do not use any Battery Backup Unit exceeding its life. If so, a fault or fire
may occur. (Assumed life of a battery backup unit (BBU): 5 years operating
environment at temperature of 27°C)