White Paper
July 2002
1713-0702A-WWEN
ProLiant DL360 G2 Server
Prepared by Industry Standard
Servers
Compaq Computer Corporation
Contents
Executive Summary.....................1
Symbols in Text ...........................3
Symbols on Equipment...............3
Server Warnings ..........................4
Rack Warnings.............................4
Where to Find Information ..........5
Introduction..................................6
Understanding Power,
Thermal, Weight and
Console Management
Considerations.............................9
Suggested Rack
Configurations ...........................22
Installation Procedures .............34
High-Density Deployment
Abstract: This white paper is a planning guide to expedite
concentrated deployments of several ProLiant
Generation 2 (G2) servers in a single rack. Use this white paper in
conjunction with documents for the ProLiant DL360 G2 server and
Compaq rack deployment products as necessary. This paper is
written for Field Systems Engineers (FSEs) and customers (IT
managers, system managers, account managers, and installers).
Executive Summary
Many business enterprises and service providers implement a
distributed architecture for their infrastructure, remote client access,
and web applications. In these cases, individual applications are
loaded on multiple machines creating the need to tightly fit a large
number of density optimized servers into existing server rooms and
data centers. Compaq meets this need with the density-optimized line
of ProLiant servers, such as the ProLiant DL360 G2 server. At a
height of 1U each, up to 42 ProLiant DL360 G2 servers can fit in a
single Compaq 42U rack. This server has clear space saving benefits;
its compressed size presents new challenges for rapid server
deployment, cable management and environmental considerations.
DL360
Compaq engineers have developed innovations in rapid high-volume
deployment and improved cable management for large installations
of ProLiant DL360 G2 servers. This white paper introduces
planning, power and thermal considerations, server and rack
requirements and installation configurations. It also outlines the
products associated with high-volume deployment in Compaq rack
configurations, such as keyboard, video, and mouse infrastructure.
IMPORTANT: This document discusses the ProLiant DL360 G2
server primarily and the Compaq 7000-, 9000- and 10000-series
racks and related Compaq rack options secondarily. This document
does not discuss other Compaq servers, products or racks not
manufactured by Compaq, although the ideas presented here may be
applied to third party racks.
Help us improve our technical communication. Let us know what you think
about the technical information in this document. Your feedback is valuable
and will help us structure future communications. Please send your
comments to:
serverdocumentation@compaq.com.
ProLiant DL360 G2 Server High-Density Deployment 2
Notice
1713-0702A-WWEN © 2002 Compaq Information Technologies Group, L.P.
Compaq, the Compaq logo, and ProLiant are trademarks registered in U.S. Patent trademarks and/or
service marks of Compaq Information Technologies Group, L.P. in the U.S. and/or other countries.
Intel, Pentium, and Pentium III are registered trademarks of Intel Corporation.
Adobe, Acrobat, and the Acrobat logo are trademarks of Adobe Systems, Inc.
All other product names mentioned herein may be trademarks of their respective companies. Compaq shall
not be liable for technical or editorial errors or omissions contained herein. The information in this
document is provided “as is” without warranty of any kind and is subject to change without notice. The
warranties for Compaq products are set forth in the express limited warranty statements accompanying
such products. Nothing herein should be construed as constituting an additional warranty.
Compaq Computer Corporation is a wholly-owned subsidiary of Hewlett-Packard Company.
ProLiant DL360 G2 Server High-Density Deployment
White Paper prepared by Industry Standard Servers
First Edition (July 2002)
Document Number 1713-0702A-WWEN
1713-0702A-WWEN
ProLiant DL360 G2 Server High-Density Deployment 3
Symbols in Text
The following symbols can be found in the text of this document:
WARNING: Text set off in this manner indicates that failure to follow directions in the
warning could result in bodily harm or loss of life.
CAUTION: Text set off in this manner indicates that failure to follow directions could
result in damage to equipment or loss of information.
IMPORTANT: Text set off in this manner presents clarifying information or specific
instructions.
Note: Text set off in this manner presents commentary, sidelights, or interesting points of
information.
Symbols on Equipment
The following symbols are located on equipment in areas where hazardous conditions might
exist.
This symbol in conjunction with any of the following symbols indicates the
presence of a potential hazard. The potential for injury exists if warnings are not
observed. Consult the documentation included with the server for specific details.
This symbol indicates the presence of hazardous energy circuits or electrical
shock hazards. Refer all service to qualified personnel.
WARNING: To reduce the risk of injury from electrical shock hazards, do not
open this enclosure. Refer all maintenance, upgrades, and service to qualified
personnel.
This symbol indicates the presence of electrical shock hazards. The area contains
no user or field serviceable parts. Do not open for any reason.
WARNING: To reduce the risk of injury from electrical shock hazards, do not
open this enclosure.
This symbol on a RJ-45 receptacle indicates a Network Interface Connection.
WARNING: To reduce the risk of electrical shock, fire, or damage to the
equipment, do not plug telephone or telecommunications connectors into this
receptacle.
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ProLiant DL360 G2 Server High-Density Deployment 4
This symbol indicates the presence of a hot surface or hot component. If this
surface is contacted, the potential for injury exists.
WARNING: To reduce the risk of injury from a hot component, allow the
surface to cool before touching.
Server Warnings
Adhere to the following guidelines when servicing or installing a ProLiant DL360 G2 server:
WARNING: To reduce the risk of electrical shock or damage to the equipment:
• Unplug the power cord from the system.
• Do not disable the power cord grounding plug. The grounding plug is an important
safety feature.
• Plug the power cord into a grounded (earthed) electrical outlet that is easily accessible
at all times.
CAUTION: To properly ventilate the system, provide at least 7.6 cm (3 inches) of
clearance at the front and back of the computer.
CAUTION: The system is designed to be electrically grounded. To ensure proper
operation, plug the AC power cord only into a properly grounded (earthed) AC outlet.
Rack Warnings
WARNING: To reduce the risk of personal injury or damage to the equipment:
• Do not attempt to move or relocate an equipment rack populated with servers. A
fully populated rack can weigh as much as 771 kg (1,700 lb). The rack might become
unstable and cause serious personal injury or equipment damage.
• Before installing the servers, extend the leveling jacks to the floor and rest the full
weight of the rack on the leveling jacks. Either install the stabilizer kit or couple
multiple racks together for stability.
• Always load the heaviest item first and load the rack from the bottom to the top.
Loading in this manner makes the rack “bottom-heavy” and helps prevent the rack
from becoming unstable.
• Extend only one ProLiant DL360 G2 server at a time. A rack might become unstable
if more than one server is fully extended for any reason.
CAUTION: Do not overload the AC supply branch circuit that provides power to the
rack.
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ProLiant DL360 G2 Server High-Density Deployment 5
Where to Find Information
This white paper is divided into sections that address important aspects of planning and installing
a high-volume deployment of ProLiant DL360 G2 servers in Compaq racks. Table 1 describes the
information each section discusses.
Table 1. Where to Find Information
Section Description Where to Find
Introduction Explains the purpose and scope of this white paper and
Understanding Power, Thermal,
Weight and Console Management
Considerations
Power Distribution Units Discusses specific PDU and power cord choices. Page 14
Suggested Rack Configurations Provides three configurations representing maximum
Installation Procedures Describes preparation and brief installation procedures
provides a glossary of terms.
Lists important information about the ProLiant DL360 G2
server, Compaq racks, PDUs, and related options to help
choose a rack configuration as well as discusses console
management options.
performance density, maximum flexibility, and traditional
environmental schemes.
that are common to various ProLiant configurations.
Page 6
Page 9
Page 22
Page 34
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ProLiant DL360 G2 Server High-Density Deployment 6
Introduction
The dense ProLiant DL360 G2 server was designed to meet the challenges associated with
deploying a high concentration of servers in a single rack. Customers should evaluate their
environments, power distribution, console, cable, and thermal management choices well in
advance to ensure efficient deployments.
All discussions of power requirements for ProLiant DL360 G2 servers are based on the input
power of the server. This document uses the maximum rated power supply input of 308 W for
calculation purposes. However, de-rating the input power might be effective to help:
• Minimize the number of PDUs required for each rack.
• Match the rack current requirements with the existing circuit breaker capacity.
• Match the rack cooling requirements with the existing facility cooling capability.
IMPORTANT: In this document, de-rating the input power budget means using less than the
maximum rated input power values for the power supply. Make sure the de-rated power
budget satisfies all the installation requirements, including future upgrade plans.
Refer to the Compaq ProLiant DL360 G2 Server QuickSpecs for detailed specifications and
options for the ProLiant DL360 G2 server.
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ProLiant DL360 G2 Server High-Density Deployment 7
References
Table 2 lists the sources referenced in this document.
Table 2. Sources of Information
Topic Where to Find
Information focal point for the
Compaq ProLiant DL360 G2 server
Specifications, options, and a list of
other Compaq products and options
compatible with the ProLiant DL360
G2 server
Installation and service guidelines for
the ProLiant DL360 G2 server
Installation of vertical-mount PDU
brackets and Y-cables
Table 3 lists all the notational abbreviations used for optional components listed in the document.
Table 3. Notations for Optional Components
www.compaq.com/proliant
Compaq ProLiant DL360 G2 QuickSpecs
www.compaq.com/support/servers/ProLiantDL360 G2.html
Compaq ProLiant DL360 G2 Setup and Installation Guide, P/N 233832-001
Compaq ProLiant DL360 G2 Maintenance and Service Guide, P/N 233831-001
Vertical-Mount PDU Brackets with High-Voltage Cables kit, P/N 166097-B21
Glossary
1U – A rack unit (1U) is 4.45 cm or 1.75 inches in vertical dimension. The height of a device
Notation Description
1 x, 2 x, 4 x Number of components, for example, 1 x 128 MB means one 128-MB DIMM
1.40 GHz Intel Pentium III 1.40-GHz processor
128 MB 128-MB DIMM
256 MB 256-MB DIMM
512 MB 512-MB DIMM
HDD Hard disk drive
GB Gigabyte
SA5300 Smart Array 5300 Controller option (64-bit PCI card)
iLO Integrated Lights-Out, a management ASIC
iLO Advanced Pack An optional license to unlock the advanced features of Integrated Lights-Out
(i.e. Virtual Graphic Console and Virtual Floppy)
FE Fast Ethernet or 10/100 Mbs
GbE Gigabit Ethernet or 10/100/1000 Mbs
(also known as form factor) can be expressed in rack units (Us). The ProLiant DL360 G2
server is a 1U server.
1U Integrated Keyboard/Mouse/TFT − The TFT5600 RKM (rack-mount keyboard and
monitor) is a 1U integrated keyboard and monitor. Its full 15-inch TFT active matrix display
provides flicker-free, quality display at viewing angles up to 120 degrees horizontally and
105 degrees vertically.
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ProLiant DL360 G2 Server High-Density Deployment 8
Flat Panel Display (FPD) – A TFT5010R (15-inch) 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.
High-voltage – AC line voltage of 200 V to 240 V. With higher voltage levels, a server can use a
lower current and still meet its power requirements. It is recommended to use a high-voltage
source to support high-volume deployments of ProLiant servers in a rack.
Integrated Lights-Out – The Integrated Lights-Out (iLO) is an intelligent microprocessor for
remote administration and is embedded on the system board of some new density optimized
ProLiant servers. To access the functionality, an IT administrator would connect a standard
network cable to the dedicated Integrated Lights-Out management port. This port can be
connected to a corporate intranet, the Internet (via VPN technology), or a separate
management network. No additional software is needed to run this advanced management.
An administrator accesses the console via a standard browser from anywhere, any time.
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 a Server Console Switch.
Keyboard/Video/Mouse (KVM) – KVM refers to a keyboard cable, a video cable, a mouse
cable, or a switch. Some 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 document, 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 – AC line voltage of 100 V to 120 V.
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 DL360 G2 server.
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. Refer to
the “Power Distribution Units” section of this document for more information.
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. Use the remote-console
system when managing a large number of servers because it eliminates the congestion of
KVM cabling.
Remote Insight Lights-Out Edition – The Remote Insight Lights-Out Edition is designed to
provide remote access and control of ProLiant server products from anywhere on the network
with a standard web browser. Consequently, customers can deploy a server in a true
“headless” fashion with a minimum of only three cables per server: one power cord for the
server, one network cable for the LAN connection, and one network cable for the Remote
Insight Lights-Out Edition management LAN connection.
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ProLiant DL360 G2 Server High-Density Deployment 9
Server Console Switch – A device that enables multiple servers in a rack to be accessed and
managed by a single keyboard, mouse, and monitor. These switches are also known as KVM
switches.
Sliding Rail – A tool-free racking system designed for Compaq and third-party racks that support
in-rack serviceability for ProLiant servers. Customers with this option could slide the server
entirely out of the rack to remove the top access panel without removing any of the cabling
from the rear of the server.
UID LED and Switch – The blue Unit Identification (UID) LED recognizes when the ProLiant
server requires service. A UID switch toggles both the front and rear UID LEDs
simultaneously.
Wake on LAN (WOL) – An option that enables a remote (re)start of the server.
Understanding Power, Thermal, Weight and
Console Management Considerations
Power, thermal, and weight are the most important considerations for optimizing a hardware
installation in high-volume server environments. The type of console management system used in
a server environment is determined by the rack deployment.
Table 4 provides server parameters necessary to calculate the power, thermal, and weight
requirements for any number of ProLiant DL360 G2 servers. Console management considerations
are discussed in detail later in this section.
Table 4. ProLiant DL360 G2 Server Parameters
Server Dimensions H x W x D
1.65 x 16.75 x 25 in/4.19 x 42.55 x 63.5 cm
Server Weights
Minimum configuration: 1 x processor, 2 x 128-MB DIMM, 1 x CD-ROM drive, 1 x diskette
assembly, 0 x HDD, power supply
Maximum configuration: 2 x processor, 4x DIMMs, 2 x HDDs, 2 x SA5300, 1 x CD-ROM drive,
1 x diskette assembly, power supply
Component Weights
CD/diskette drive assembly 0.34 kg (0.75 lb)
DIMM 0.04 kg (00.1 lb)
HDD 0.86 kg (1.9 lb)
SA5300 0.45 kg (1.0 lb)
continued
26 lb/11.81 kg
30.6 lb/13.9 kg
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Table 4. ProLiant DL360 G2 Server Parameters (continued)
Component Weights (continued)
Maximum system measured input AC power
90 V 257 W
220 V 248 W
Maximum power supply rated input current
120 V 3.56 A
240 V 1.78 A
Maximum system measured input current
90 V 2.86 A
240 V 1.13 A
System Thermal Dissipation (per hour)
115 V 1,050 BTUs
240 V 1,050 BTUs
Relative Humidity (non-condensing)
Operating 10 to 90%
Non-operating 5 to 95%
The SA5302 option is a PCI card available from Compaq. Any third-party PCI cards used in the
ProLiant DL360 G2 server must comply with the industry-standard PCI specifications for
dimension, weight, power, and thermal requirements.
Power and Thermal Budgeting
Note: In this document, de-rating the input power budget means not using the maximum rated
input power values for the power supply. It is strongly recommended the installation planner
ensures the de-rated power budget satisfies all the installation requirements, including
future upgrade plans.
All ProLiant DL360 G2 power requirement discussions in this document are based on the input
power of the server, since this number has direct impact in planning for the PDU selection and the
facility power source. Use one of the following methods during the facility power distribution
planning to account for the ProLiant DL360 G2 input power.
1. Use the maximum rated input power of 308 W.
2. Use the Power Calculator Utility (provided in Active Answers) to configure your system as it
will be used; providing all the relevant power and cooling parameters needed to plan an
installation. For more information on the Power Calculator Utility, refer to our website
located at:
www.activeanswers.compaq.com/aaconfigurator/PowerCalc/DL360G2.xls
3. Use the de-rated input power, which can be calculated by adding the power budgets of
installed optional components from the rated input power.
4. Use the allocated input power, which can be calculated by dividing the maximum power of a
PDU by the number of servers. This calculated power should be at least 250 W to support all
the optional components initially released with the ProLiant DL360 G2.
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ProLiant DL360 G2 Server High-Density Deployment 11
The power budgets of optional components referred to (in the following sections) were derived
from the system input power of a set of selectively measured server configurations. The
configurations measured range from a basic low-end configuration to a fully populated high-end
configuration. Since the input power values for a ProLiant DL360 G2 server in an installation
might vary depending on the software applications, the information provided in this section
should be used as a guideline only.
The ProLiant DL360 G2 server power supply is designed to support future upgrades of
processors, DIMMs, and hard disk drives. As such, the power supply output power is rated at
200 W. Considering the power supply efficiency of 65% (including the Power Factor Correction);
the power supply input power is rated at 308 W. This input power value may be used in planning
for the power source implementation and facility cooling requirements. In some cases the input
power requirement for each ProLiant DL360 G2 server might be desired to be lower than 308 W.
For example,
• To minimize the number of PDUs, that is, the number of facility power feed lines, required
for each rack.
• To match the rack current requirements with the existing facility branch circuit breakers.
• To match the rack power and cooling requirements with the existing facility power and
cooling limitations.
Table 5 demonstrates how significant reduction in input current and thermal dissipation can be
realized, if a deployment plan can limit each ProLiant DL360 G2 configuration over the useful
lifetime of a rack configuration.
Table 5. De-rated Current and Thermal Dissipation for Reduced Input Power Assumptions
De-Rated Fully Rated
Input Power 120 W 250 W 308 W
Input Current @110 V AC 1.09 A 2.27 A 2.80 A
Input Current @208 V AC 0.57 A 1.20 A 1.48 A
Thermal Dissipation 409 BTUs/hour 852 BTUs/hour 1050 BTUs/hour
The de-rated input power values of 120 W and 250 W can be correlated with the measured input
power values for the minimum and maximum configurations for ProLiant DL360 G2 servers.
However, the de-rated input power value must be high enough to account for any future upgrades
for a deployment plan.
As stated earlier, the power supply is designed to support future processor and hard drive
upgrades. When installing 42 servers, the number of PDUs to be installed will depend on the
support for the input current requirement. Carefully de-rating the input power may very well
satisfy deployment needs and also reduce the number of PDUs per rack. Reducing the number of
PDUs has a direct impact on the deployment time and maintenance of an installation.
Input Current and Thermal Dissipation Calculations
The input power is the key in deriving the input current and thermal dissipation. For a given input
power, the input current will vary depending on the input voltage level.
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ProLiant DL360 G2 Server High-Density Deployment 12
The relationship among the current, the voltage and the power for the power supply input is as
follows:
Input Current = Input Power / Input Voltage
For example,
Input Current = 100 W /110 V = 0.91 A
Input Current = 100 W /208 V = 0.48 A
The input power of a server depends on the operational state of the system. For example, during
the initial power up, a server consumes more power due to the hard disk drives spin-ups. It should
be noted that in the ProLiant DL360 G2, the two hard disk drives spin-up one after the other.
Therefore, the peak input power requirement changes significantly when the first drive is added,
but not as much when the second drive is added. After the initial power up, the input power varies
depending on the operating system and the application software running on the server. During
standby, only the auxiliary portion of the power supply is consuming power to support operations
of a very limited part of the system, for example, the Remote Insight Lights-Out Edition option,
NICs, and so on.
The thermal dissipation can be calculated from the input power as follows:
Thermal Dissipation = Input Power * 3.41
For example,
Thermal Dissipation = 100 W * 3.41 = 341 BTUs/hour
Thermal Dissipation = 292 W * 3.41 = 996 BTUs/hour
The easiest way to calculate the thermal dissipation for the entire rack is to add the input power
requirements for all the servers and other units populated in a rack, and then multiply the total
input power by 3.41.
Measured Input Power
Table 6 lists the measured input power of ProLiant DL360 G2 with varying subsystem
components, to illustrate the effects of adding or removing optional components. Table 7 lists
each subsystem component's input power derived from Table 6. A few test programs were run to
exercise various parts of the system. Also, the current and power were measured on the input side
of the power supply. The “peak” and “typical” input power values were measured during power
up and idle/normal operations, respectively.
Table 6. Measured Input Power for Selected Server Configurations
Configuration
Number
1 1 x 1.4 GHz, 2 x 128 MB, 1 x 18.2 GB (base-line) 146 W / 153 W
2 2 x 1.4 GHz, 2 x 128 MB, 2 x 18.2 GB 189 W / 196 W
3 2 x 1.4 GHz, 4 x 1 GB, 2 x 18.2 GB 195 W / 205 W
4 2 x 1.4 GHz, 4 x 1 GB, 2 x 72.8 GB, 2 x 5302 244 W / 257 W
ProLiant DL360 G2 Configuration
Power Input
Typical / Peak
Note: Peak power of a fully configured ProLiant DL360 G2 server (Configuration 4 was
measured to be only about 83% of its rated peak input power).
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