Fujitsu C120-H007-06EN User Manual

98

C120-H007-05EN

CHAPTER 8 Security Actions

 

It is also important to train and prepare staff to fight fires before they become too 
serious. 

While the Fire Services Law and other relevant regulations dictate that certain fire-
fighting equipment be available, this equipment is not necessarily adequate for server 
system security. The installation of more appropriate fire-fighting equipment is 
recommended, even if they are not required by these laws and regulations.

Keeping human guards to constantly monitor for fires provides the best protection, 
however this is not always practicable at night or during holidays. Further, full 
monitoring may not be possible even if guards are available. Automatic fire alarms 
are useful in these situations. Computer rooms and data storage rooms should each be 
designated as independent alarm zones (see 

).

Figure 8.1  Designating alarm zones

An alarm zone is an area in which a single line of an automatic fire alarm is capable of 

detecting fires. An independent alarm zone may not exceed 600 m

2

 (6460 ft

2

) in area, 

with the length of each side not exceeding 50 m (160 ft), and may not span two or 
more floors. If the computer room exceeds these limits, it must be split into two or 
more alarm zones.

For fire-resistant building, automatic fire alarm sensors should be installed on the 
finished surface of the ceiling. In the computer room, sensors should also be installed 
under the free-access floor, and also in the ceiling if return air from the air conditioner 
passes through the ceiling.

It is also recommended that smoke sensors that operate on both an ion and 
photoelectric principle be installed in the computer room and the data storage room.