HP ProLiant DL560 Server High Density Deployment

hp ProLiant DL560 server high-density deployment white paper
30
Integrated Lights-Out (iLO)—a standard component of selected ProLiant servers
that provides server health and remote server manageability. The iLO
subsystem includes an intelligent microprocessor, secure memory, and a
dedicated network interface. This design makes iLO independent of the host
server and its operating system. Integrated Lights-Out provides remote access
to any authorized network client, sends alerts, and provides other server
management functions.
Keyboard/Video/Mouse (KVM)—KVM refers to a keyboard cable, a video
cable, a mouse cable, or a switch. Some HP parts lists might refer to KVM
switches as Server Console Switches.
Local Console—A local console system interacts with a server using a set of
KVM devices and can be in-rack or off-rack. In this paper, in-rack local console
refers to a flat panel display and a keyboard/trackball in the same rack as the
servers. Off-rack local console refers to any combination of a display, a
keyboard, and a pointing device located outside of the rack. A local console
system does not use a network connection to interact with the server.
Low Voltage—90-132 VAC (100-120 VAC nominal) supplied at utility outlets in
homes and offices. This is the AC appliance standard used in North America,
Latin America, and Japan.
N.A.—North America, including U.S., Canada, and Mexico.
Network Interface Controllers (NICs)—Controllers that are embedded on the
system board of the ProLiant DL560 server.
Power density—The amount (product) of amps and voltage provided to a
system (VA). A 120-VAC 30-amp circuit will deliver a power density of 3600 VA
while a 208-VAC 30-amp circuit (single-phase) will deliver a power density of
6240 VA.
Power Distribution Unit (PDU)—A PDU is a high-voltage or low-voltage device
that is equipped with circuit breakers that help prevent electrical surges and
external equipment malfunction by providing over current and surge
protection for connected devices. See the “power distribution solutions”
section of this paper.
Power factor (pf)—An efficiency rating that indicates the amount of watts
actually consumed by a load from the volt-amperes delivered to it. The rating is
expressed as either a decimal number between 0 and 1 or a percentage of
the formula of dividing watts by volt-amperes. A power factor of 1 indicates
that a device receiving 1 VA is consuming 1 watt.
Power service—Point at where electrical power enters a building or equipment
room.
Remote Console—A remote console is a server console system that uses a
network connection to interact with the server. This system enables any
computer with appropriate software and network access to control a server
from anywhere across the globe. HP recommends using the remote-console
system for managing a large number of servers because it eliminates the
congestion of KVM cabling.