Preventing Metallic Particulate Contamination; Data Communication Requirements - HP XP20000/XP24000 Manual
Hp storageworks xp24000/xp20000 disk array site preparation guide (ae002-96055, september 2010)
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Also See for XP20000/XP24000:
- Manual (448 pages) ,
- Reference manual (372 pages) ,
- Configuration manual (183 pages)
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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 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 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 electric fields created by power
transformers and heavy foot traffic. Use shielded data communication cables that meet approved
industrial standards to reduce the effects of external fields.
The XP24000 and XP20000 frames support top access and bottom access for hot cables. Routing
the host cables in an XP24000 require HP support personnel to install.
The data communication infrastructure needed for the XP disk array is described in
"HP Insight Remote Support
Table 13 Data communication requirements
Item
A dedicated analog phone line for HP StorageWorks
XP Continuous Track (C-Track) modem-based remote
support option (if chosen)
Internet connectivity infrastructure for HP Storage-
Works XP Continuous Track (C-Track) Internet-based
remote support option (if chosen)
A twisted pair (Cat 5) cable
Advanced" on page 38.
Purpose
If you choose C-Track modem connectivity, 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 choose C-Track Internet connectivity, additional
preparation may include server and router require-
ments, which you and HP may be responsible for im-
plementing. For more information, refer to
Remote Support
your HP representative.
Needed to connect the HP system to an available Eth-
ernet port on the customer's LAN. To ensure network
security, consult with an HP representative and your
network administrator before selecting the appropriate
location of your LAN drop.
XP24000/XP20000 Disk Array Site Preparation Guide
Table 13
Advanced" on page 38 or contact
and in
"HP Insight
37
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