HP ProLiant SL270s HP ProLiant SL Servers Planning Guide - Page 36

Additional rack considerations, General component placement guidelines

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CAUTION: When performing non-hot-plug operations, you must power down the chassis and/or the system. However, it may be necessary to leave the chassis powered up when performing other operations, such as hot-plug installations or troubleshooting. Additional rack considerations Consider the following additional specifications and components, with regard to your specific rack configuration: • Power-If a UPS is installed, do not exceed its output rating. Be sure to review the installation instructions provided with each component for important cautions and warnings. • PDUs-Install PDUs before installing other components. • Height-The height of the rack and of rack-mountable components is measured in U increments, where U = 4.5 cm (1.75 in). When you are configuring your rack installation, remember that the total U measurement of the components you want to install cannot exceed the stated U height of the rack. • Keyboard-The rack keyboard requires installation of a 1U keyboard drawer rack option kit. • Monitor-The monitor requires installation of a monitor/utility shelf rack option kit unless you are using a rack-mountable flat-panel monitor. • Server console switch-If a console switch is configured, use the CPU-to-console switch cable included with the server. The standard distance between the console switch and the keyboard, monitor, and mouse can vary by 3-, 7-, 12-, 20-, and 40-ft lengths. NOTE: National electrical regulations governing the installation of building wiring require that an appropriate cable, meeting fire-safety standards, must be used any time cabling is routed: • Through an overhead drop-ceiling • Under raised flooring • From room to room • From floor to floor Be sure that the cable jacket or sleeving is made of material that does not burn easily and does not exude toxic fumes when exposed to heat. Be sure that the cable you have selected is appropriate for your installation site. If you require a U.S. plenum-rated (CL2P) cable, contact your local HP authorized reseller to obtain any of the following options: • 149363-B21-20-foot plenum cable • 149364-B21-40-foot plenum cable • Rack baying option kits-The number of baying kits needed to join a series of racks is one less than the number of racks in the suite. Each baying kit supplies parts to bay two cabinets on 600 mm (24 in) center line spacing. • Side panels-Only one set of side panels is required for each row of bayed racks. • Stabilizer kit-A stabilizer kit is either required or recommended, depending on your rack configuration. General component placement guidelines Preparing for installation 36

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Preparing for installation 36
CAUTION:
When performing non-hot-plug operations, you must power down the chassis and/or
the system. However, it may be necessary to leave the chassis powered up when performing other
operations, such as hot-plug installations or troubleshooting.
Additional rack considerations
Consider the following additional specifications and components, with regard to your specific rack
configuration:
•
Power—If a UPS is installed, do not exceed its output rating. Be sure to review the installation
instructions provided with each component for important cautions and warnings.
•
PDUs—Install PDUs before installing other components.
•
Height—The height of the rack and of rack-mountable components is measured in U increments, where
U = 4.5 cm (1.75 in). When you are configuring your rack installation, remember that the total U
measurement of the components you want to install cannot exceed the stated U height of the rack.
•
Keyboard—The rack keyboard requires installation of a 1U keyboard drawer rack option kit.
•
Monitor—The monitor requires installation of a monitor/utility shelf rack option kit unless you are using
a rack-mountable flat-panel monitor.
•
Server console switch—If a console switch is configured, use the CPU-to-console switch cable included
with the server. The standard distance between the console switch and the keyboard, monitor, and
mouse can vary by 3-, 7-, 12-, 20-, and 40-ft lengths.
NOTE:
National electrical regulations governing the installation of building wiring require that
an appropriate cable, meeting fire-safety standards, must be used any time cabling is routed:
•
Through an overhead drop-ceiling
•
Under raised flooring
•
From room to room
•
From floor to floor
Be sure that the cable jacket or sleeving is made of material that does not burn easily and does not
exude toxic fumes when exposed to heat. Be sure that the cable you have selected is appropriate
for your installation site. If you require a U.S. plenum-rated (CL2P) cable, contact your local HP
authorized reseller to obtain any of the following options:
•
149363-B21-20-foot plenum cable
•
149364-B21-40-foot plenum cable
•
Rack baying option kits—The number of baying kits needed to join a series of racks is one less than the
number of racks in the suite. Each baying kit supplies parts to bay two cabinets on 600 mm (24 in)
center line spacing.
•
Side panels—Only one set of side panels is required for each row of bayed racks.
•
Stabilizer kit—A stabilizer kit is either required or recommended, depending on your rack
configuration.
General component placement guidelines