Preventing Metallic Particulate Contamination; Data Communication Requirements - HP StorageWorks XP10000 - Disk Array Manual

Mechanical filters on the disk array 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.

Preventing 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.

Data communication requirements

Route data communication cables away from areas of high static electrical fields created by power
transformers and heavy foot traffic. Use shielded data communication cables that meet approved
industry standards to reduce the effects of external fields.
Table 13 shows other data communication requirements for the XP10000 disk array.
Table 13 Data communication requirements
Item
A dedicated analog phone line
for C-Track modem remote
support option (if chosen)
Internet connectivity
infrastructure for C-Track
Internet-based remote support
option (if chosen)
A twisted pair (Cat 5) cableAn
available LAN drop on your
Intranet
36 Site requirements for the XP10000 disk array
Description
If you plan to use the HP StorageWorks XP Continuous Track (C-Track)
modem-based remote support solution, you will need a dedicated analog
phone line. HP recommends a data quality modem line with 28.8 Kbps
capability in order to support reliable file transfer and serve the overall
objectives of the remote support solution. An HP representative will configure
C-Track.
If you plan to use the HP StorageWorks XP Continuous Track (C-Track)
Internet-based remote support solution, additional infrastructure and related
site preparation is required. For detailed information, contact your HP
representative.
Needed to connect the HP XP10000 disk array to an available Ethernet
port on your public LAN. To ensure network security, consult with an HP
representative and your network administrator before selecting the
appropriate location of your LAN drop.