HP 200 HP StorageWorks 200 Storage Virtualization System site preparation guid - Page 31

Acoustics, Dust and pollution control, Metallic particulate contamination

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Acoustics The acoustic emission specification for the system is: • 65 dB (A) sound pressure, operator position (1 meter from the floor and surface of the cabinet) You can reduce the ambient noise level caused by equipment and air conditioning blowers in your computer room by: • Installing a dropped ceiling covered in commercial-grade, fire-resistant, acoustic-rated, fiberglass ceiling tile • Covering the walls in sound-deadening material • Installing foam rubber removable partitions Dust and pollution control Airborne contaminants and particles of a certain size and hardness can damage the system. Some of the most common contaminants are dust, smoke, ash, eraser debris, food crumbs, and salty air. Mechanical filters on the system protect it by trapping large dust particles. Smaller particles can pass through some filters, and can eventually cause problems in mechanical parts. Prevent small dust particles from entering the computer room by maintaining its air conditioning system at a high static air pressure level. Your HP representative can help you determine if you need to be concerned about airborne contaminants. Metallic particulate contamination Metallic particulates can be especially harmful around electronic equipment. This type of contamination may enter the data center environment from a variety of sources, including but not limited to raised floor tiles, worn air conditioning parts, heating ducts, rotor brushes in vacuum cleaners, or printer component wear. Because metallic particulates conduct electricity, they have an increased potential for creating short circuits in electronic equipment. Over time, very fine whiskers of pure metal can form on electroplated zinc, cadmium, or tin surfaces. If these whiskers are disturbed, they may break off and become airborne, possibly causing failures or operational interruptions. For over 50 years, the electronics industry has been aware of the relatively rare but possible threat posed by metallic particulate contamination. During recent years, a growing concern has developed in computer rooms where these conductive contaminants are formed on the bottom of some raised floor tiles. Although this problem is relatively rare, it may be an issue within your computer room. Since metallic contamination can cause permanent or intermittent failures on your electronic equipment, HP strongly recommends that your site be evaluated for metallic particulate contamination before installation of electronic equipment. HP StorageWorks 200 Storage Virtualization System site preparation guide 31

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Acoustics
The acoustic emission speci
fi
cation for the system is:
•
65 dB (A) sound pressure, operator position (1 meter from the
fl
oor and surface of the cabinet)
You can reduce the ambient noise level caused by equipment and air conditioning blowers in your
computer room by:
•
Installing a dropped ceiling covered in commercial-grade,
fi
re-resistant, acoustic-rated,
fi
berglass
ceiling tile
•
Covering the walls in sound-deadening material
•
Installing foam rubber removable partitions
Dust and pollution control
Airborne contaminants and particles of a certain size and hardness can damage the system. Some of the
most common contaminants are dust, smoke, ash, eraser debris, food crumbs, and salty air.
Mechanical
fi
lters on the system protect it by trapping large dust particles. Smaller particles can pass
through some
fi
lters, and can eventually cause problems in mechanical parts. Prevent small dust particles
from entering the computer room by maintaining its air conditioning system at a high static air pressure
level.
Your HP representative can help you determine if you need to be concerned about airborne contaminants.
Metallic particulate contamination
Metallic particulates can be especially harmful around electronic equipment. This type of contamination
may enter the data center environment from a variety of sources, including but not limited to raised
fl
oor
tiles, worn air conditioning parts, heating ducts, rotor brushes in vacuum cleaners, or printer component
wear. Because metallic particulates conduct electricity, they have an increased potential for creating
short circuits in electronic equipment.
Over time, very
fi
ne whiskers of pure metal can form on electroplated zinc, cadmium, or tin surfaces.
If these whiskers are disturbed, they may break off and become airborne, possibly causing failures or
operational interruptions. For over 50 years, the electronics industry has been aware of the relatively
rare but possible threat posed by metallic particulate contamination. During recent years, a growing
concern has developed in computer rooms where these conductive contaminants are formed on the
bottom of some raised
fl
oor tiles.
Although this problem is relatively rare, it may be an issue within your computer room. Since metallic
contamination can cause permanent or intermittent failures on your electronic equipment, HP strongly
recommends that your site be evaluated for metallic particulate contamination before installation of
electronic equipment.
HP StorageWorks 200 Storage Virtualization System site preparation guide
31