HP ProLiant DL560 Server High Density Deployment

hp ProLiant DL560 server high-density deployment white paper
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reference
information
and glossary
additional
resources
Additional documentation, that may be helpful during high-density server and
rack deployment, is listed in table 13 and available at http://www.hp.com.
table 13: additional resources
document part number
Power Distribution Solutions for the
ProLiant DL580 G2 server white paper
TC0301013WP
HP ProLiant DL360 Generation 3 Server
High-Density Deployment white paper
1763-1102A-WWEN
HP Power and Cooling Trends in the
Datacenter white paper
TC030203TB
glossary
1U—A rack unit (1U) is 4.45 cm (1.75 in) in vertical dimension. The height of a
device (also known as form factor) can be expressed in rack units (U). The
ProLiant DL560 server is a 2U server.
1U Integrated Keyboard/Mouse/TFT—The TFT5600 RKM (rack-mount keyboard
and monitor) is a 1U integrated keyboard and monitor. Its full 15-in TFT active
matrix display provides flicker-free, quality display at viewing angles up to 120
degrees horizontally and 105 degrees vertically.
Flat Panel Display (FPD)—An HP TFT5010R (15-in) flat panel monitor provides a
large image size and exceptional screen performance in a space-saving 2U
size that enables the monitor to be neatly tucked away when not in use.
Ground leakage current—Residual current flow through the grounding
conductor, which is always undesirable. With data processing occurring at
ever-increasing speeds, most IT equipment includes capacitors in the power
circuits to filter radio frequency (RF) signals to ground. While effective at filtering
RF, these components tend to allow a small amount of AC current to pass to
the ground. Leakage current is additive so that as more equipment is
connected to the AC mains, the amount of leakage can increase.
High Voltage—180-264 VAC (200-240 VAC nominal) supplied to areas where
load requirements are such that high voltage is more economical. Common in
commercial applications in North America, numerous foreign countries also use
this range as the AC appliance standard.
In-Rack Keyboard—The 1U rack keyboard drawer and the internal keyboard
with trackball are designed to work together to save room in
space-constrained, rack-mount environments. The 1U keyboard drawer requires
only half the rack depth and provides enough space behind it to mount an HP
Server Console switch.
Inrush current—A high, momentary current draw occurring when power is first
applied to electrical systems. This current drain is not relative to the power-on
requirements of equipment, but instead is due to the capacitive and inductive
properties of components in the power supply.