HP DL320 - ProLiant - G3 User manual

November 2002
industry
standard
servers
hp ProLiant DL320 generation 2 server high-
density deployment
table of
contents
abstract .................................................................................................... 2
executive summary ................................................................................. 2
general guidelines................................................................................... 2
power and thermal budgeting .................................................................3
power distribution units..........................................................................8
planning rack configurations ............................................................... 13
weight considerations ..........................................................................14
rack builder online...............................................................................15
special considerations for Compaq branded racks.................................16
rack management systems...................................................................16
suggested rack configurations ............................................................ 18
configuration A: maximum performance density (42 derated servers, 24 A
high voltage) .......................................................................................18
configuration B: maximum flexibility (35 derated servers, low voltage) ...22
configuration C: traditionalist (28 servers, 24 A low voltage)..................26
installation procedures......................................................................... 30
symbols on equipment, server warnings, and rack warnings ..................30
server preparation ...............................................................................32
rack preparation ..................................................................................32
installing PDUs....................................................................................33
installing the rack rails.........................................................................34
installing the server in a rack ...............................................................34
connecting cables................................................................................35
completing the installation ...................................................................36
reference information and glossary .................................................... 37
references...........................................................................................37
glossary ..............................................................................................37
technical
white paper

hp ProLiant DL320 generation 2 server high-density deployment technical white paper 2
abstract
This white paper is intended for use as a planning guide to expedite the concentrated deployment
of several HP ProLiant DL320 Generation 2 servers. Use this white paper in conjunction with
other documents for the ProLiant DL320 Generation 2 server and Compaq branded rack
deployment products. This paper is intended for Field Systems Engineers (FSEs) and customers
(IT managers, system managers, account managers, and installers).
executive summary
Many business enterprises and service providers use network infrastructure and web applications
that work best on dedicated servers. This creates the need to fit a large number of smaller servers
into existing server rooms and data centers. HP meets this need with the density-optimized line of
ProLiant servers, such as the ProLiant DL320 Generation 2 server. At a height of 1U each, up to
42 servers can fit in a single Compaq branded 42U rack. While this server has clear space saving
benefits, its compressed size presents new challenges for rapid server deployment, as well as
cable management and environmental considerations.
HP engineers have developed innovations in rapid high-volume deployment and improved cable
management for large installations of ProLiant DL320 Generation 2 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 branded rack configurations, such as keyboard, video, and mouse infrastructure.
IMPORTANT: This document principally discusses the ProLiant DL320 Generation 2 server,
the Compaq branded 7000-, 9000-, and 10000-series racks and related Compaq branded rack
options. This document does not discuss other servers, products, or racks not manufactured by
HP.
general guidelines
Power, thermal, and weight are the most important considerations for optimizing a hardware
installation in high-volume server environments.
HP designed the dense ProLiant DL320 Generation 2 server to meet the challenges associated
with deploying a high concentration of servers in a single rack. HP suggests that customers
evaluate their environments, power distribution, console, cable, and thermal management choices
well in advance to ensure efficient deployments.
All discussions of power requirements for this server are based on the input power of the server.
This document uses the maximum rated power supply input of 180 W for calculation purposes.
However, derating 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.

hp ProLiant DL320 generation 2 server high-density deployment technical white paper 3
IMPORTANT: In this document, derating the input power budget means using less than the
maximum rated input power values for the power supply. HP strongly recommends using the
installation planner to ensure that the derated power budget will satisfy all the installation
requirements, including future upgrade plans.
Refer to the HP ProLiant DL320 Generation 2 Server QuickSpecs for detailed specifications and
options for this server.
power and thermal budgeting
accounting for server input power
Note: In this document, derating the input power budget means not using the maximum rated
input power values for the power supply. HP strongly recommends using the installation
planner to ensure that the derated power budget will satisfy all the installation
requirements, including future upgrade plans.
All 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. One of the following methods can be used to account for input power in the facility power
distribution planning:
• Use the maximum rated input power of 277 W.
• Use the derated input power, which can be calculated by subtracting the power budgets of
uninstalled optional components from the rated input power.
• 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 server.
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. These
configurations measured range from a basic low-end configuration to a fully populated high-end
configuration. Since the input power values used in an installation might vary depending on the
software applications, the information provided in this section should be used as a guideline only.
The server power supply is designed to support future upgrades of processors, DIMMs, and hard
drives. As such, the power supply output power is rated at 180 W. Assuming the power supply
efficiency of 65 percent (including the Power Factor Correction), the power supply input power
is rated at 277 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 server might be desired to be lower than 277 W.
The input power requirement might be lowered in the following instances:
• 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 cooling requirements with the existing facility environment.

hp ProLiant DL320 generation 2 server high-density deployment technical white paper 4
Table 1 demonstrates how significant reduction in input current and thermal dissipation can be
realized, if a deployment plan can limit each server configuration over the useful lifetime of a
rack configuration.
Table 1. Derated Current and Thermal Dissipation for Reduced Input Power Assumptions
Input Power Derated Fully Rated
120 W 250 W 277 W
Input Current at 110 VAC 1.09 A 2.27 A 2.52 A
Input Current at 208 VAC 0.57 A 1.20 A 1.33A
Thermal Dissipation 409 BTUs/hour 852 BTUs/hour 944 BTUs/hour
The derated input power values of 120 W and 250 W can be correlated with the measured input
power values for the minimum and maximum configurations of the server. However, the derated
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 derating 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.
DL320 generation 2 server power, thermal, and weight parameters
Table 2 provides server parameters necessary to calculate the power, thermal, and weight
requirements for any number of servers.
Table 2. ProLiant DL320 Generation 2 Server Parameters
Item @ Specification
Dimensions HxWxD
4.24x48.3x55.6 cm (1.67x19.0x21.9 in) – including bezel
Server Weights
Minimum Configuration: 1x processor, 1x128-MB DIMM, 1x CD/Diskette Blank, 0x HDD 19.8 lb (8.98 kg)
Standard Configuration: 1x processor, 1x128-MB DIMM, 1x HDD, 1x CD/Diskette Assembly 22.1 lb 10.02 kg)
Maximum Configuration: 1x processor, 4x DIMMs, 2x HDDs, 1x SA431, 1x CD/Diskette
Assembly
24.6 lb 11.16 kg)
Component Weights
CD/Diskette Drive Assembly 1.4 lb (0.63 kg)
DIMM 0.1 lb (0.05 kg)
HDD 1.3 lb (0.59 kg)
Remote Insight Lights-Out Edition 0.5 lb (0.23 kg)
SA5302 1.0 lb (0.45 kg)
Power Ratings
Maximum Power Supply Rated Input AC Power
240 V 277 W
Maximum System Measured Input AC Power
110 V 231 W

hp ProLiant DL320 generation 2 server high-density deployment technical white paper 5
Item @ Specification
Maximum Power Supply Rated Input Current
100 VAC 2.77A
200 VAC 1.38A
Maximum System Measured Input Current
Maximum System Thermal Dissipation (per hour)
944BTUs
Relative Humidity (noncondensing)
Operating 10 to 90%
Nonoperating 10 to 95%
Note: The SA5302 option is a PCI card available from HP. Any third-party PCI cards used in the
server must comply with the industry-standard PCI specifications for dimension, weight, power,
and thermal requirements.
input current and thermal dissipation calculations
Input power is the key in deriving input current and thermal dissipation. For a given input power,
the input current will vary depending on the input voltage level.
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 drives’ spin-ups. It should be
noted that in the ProLiant DL320 Generation 2 server, the two hard 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 (RILOE) option, NICs, and so on.
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

hp ProLiant DL320 generation 2 server high-density deployment technical white paper 6
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.
The “measured input power” section explains more on how adding or removing of an optional
subsystem component affects the input power and thermal calculations.
measured input power
Table 3 lists the measured input power of the server with varying subsystem components, to
illustrate the effects of adding or removing optional components.
Table 3. Measured Input Power for Selected Server Configurations
Configuration
Number ProLiant DL320 Generation 2 Server Configuration Power Input Typical/Peak
1 1x2.26 GHz, 1x128 MB, 1xATA (base-line) 143 W/158 W
2 1x2.26 GHz, 1x128 MB, + 2x18.2 GB SCSI 148 W/168 W
3 1x2.26 GHz, 1x128 MB, 4 GB + 2xATA 165 W/191 W
4 1x2.26 GHz, 1x128 MB, 4 GB + 2x36 GB SCSI 188 W/212 W
5 1x2.26 GHz, 1x128 MB, 4 GB + 2x36 GB SCSI + 5304 209 W/231 W
Note: The peak power listed in Table 3 is of a fully configured ProLiant DL320 Generation 2
server (Configuration 4 was measured to be only about 83 percent of its rated peak input power).
Note: DIMM and HDD input power can vary depending on the component and drive
manufacturer.
input power budget derating
If a deployment plan limits the future expansion beyond certain configuration options, which may
be added in the future, then adjustments can be made to the expected input current and thermal
requirements of the servers.
To derate the input power, start with the minimum configuration 1 from Table 2. Add the typical
power of the components included in the desired system configuration to calculate the derated
power budget. Typical input powers for various components are listed in Table 3.
Example
Assuming the desired server configuration is as follows; use to calculate the derated power
budget using the typical power from Table 3.
Processor: 2.26 GHz
Memory: 4x128 MB
Storage: 2x18.2 GB
Smart Array Controller 5304: 1x SA5304

hp ProLiant DL320 generation 2 server high-density deployment technical white paper 7
Table 4. Example Derating Worksheet
Maximum Rated Input Power for the Base Configuration Typical Power 143 W
1. Add the typical power for the additional memory. 2 W per DIMM
2. Add the typical power for the second HDD. 5 W
3. Add the typical power for the PCI card
Typical power for the desired configuration
15W
169 W
4. Calculate the thermal dissipation.
Thermal dissipation for the desired configuration (in BTUs)
×3.41
576 BTUs/hour
Therefore, the new power budget for this configuration is 169 W (compared to the rated 277 W),
and the thermal dissipation is approximately 576 BTUs/hour (compared to the rated 945
BTUs/hour).
The rated input power for the server power supply is 277 W. Therefore, the power budget for a
maximum configuration is 231 W, and the thermal dissipation will be approximately
231 * 3.41 = 788 BTUs/hour.
This derated input power budget significantly reduces the power and thermal requirements for
highly populated racks, which reduces the number of PDUs for certain configurations. Fewer
PDUs decreases deployment time and lowers costs. Costs for the facility electrical plumbing, data
center floor ventilation, and facility air conditioning installation can also be reduced.
IMPORTANT: HP strongly recommends verifying that the derated power budget satisfies all
the installation requirements, including future upgrade plans.
input power budget allocation
This section explains how to allocate the input power budget for each server. This method can be
used when a PDU supports a known number of servers. It is important to verify that the
calculated power budget allocation will be sufficient to support the worst-case server
configurations that are to be deployed.
The allocated input power for each server is calculated by multiplying the allocated input current
for each server by the line voltage.
Allocated Input Power = Allocated Input Current * Input Line Voltage
Example
Assume a high-voltage PDU rated at 24 A is to support 21 servers. Each server can be allocated
1.143 A. If the line voltage is assumed to be at 208 V, then the allocated input power budget for
each server will be (1.143*208) = 238 W.
Since the input power budget of 238 W satisfies the fully configured system measured input
power of 185 W (as shown in Table 3), 21 servers may be supported by a 24 A high-voltage
PDU. That means only two of these PDUs are needed to support 42 servers in a 42U rack.

hp ProLiant DL320 generation 2 server high-density deployment technical white paper 8
power distribution units
HP offers a wide range of 1U/0U PDUs, supporting both low voltage and high voltage
applications. Designed especially for high volume rack deployments, HP PDUs help with cable
management and power distribution within the rack. These PDUs are equipped with circuit
breakers to provide short circuit and over current protection.
The Modular PDUs (mPDUs), range from 16 A to 40 A, and provide up to 32 outlets*, easy
accessibility, and improved cable management. These mPDUs have a unique modular
architecture that allows increased flexibility and customization. And all mounting hardware,
including both the 0U and 1U mounting brackets are included in the Modular PDU kit (no
additional mounting brackets need to be purchased).
In addition, HP also offers the Dual Input PDU, a fault-tolerant solution that automatically
switches over to a secondary input source when the first source fails. Equipped with two input
ends and a built-in AC transfer switch, this device is designed for mission critical environments
where customers depend on the reliability of redundant power systems housed in their facility.
The Dual Input PDUs ship with both 0U and 1U mounting brackets (no additional mounting
brackets need to be purchased).
*The number of outlets vary by model, please refer to the Table 5 for more specific information.
Additional information is also available at www.hp.com/products/ups
Table 5. HP PDUs
Part Number Availability Input Voltage Current Rating Maximum Servers per PDU Input Connectors and Cord Output Connectors Output Breakers Dimensions Weight
Modular PDUs (Up to 32 outlets, 0U/1U mounting)
252663-B243Worldwide High 16A 10 Detachable input
cord;
IEC 320 C-20
16 X IEC320-C13 2 X 10 A 17.5 x 1.62 x 5.6 in
(444.5 x 41.2 x 142.2mm)
18 lb
(8.16 kg)
252663-D713North
America,
Japan
Low 24 A 8 NEMA L5-30P
12-ft cord
32 ×NEMA 5-15R 4 ×15 A 17.5 x 1.62 x 5.6 in
(444.5 x 41.2 x 142.2mm)
18 lb
(8.16 kg)
252663-D723North
America,
Japan
High 24 A 16 NEMA L6-30P
12-ft cord
32 ×IEC 320-C13 4 ×15 A 17.5 x 1.62 x 5.6 in
(444.5 x 41.2 x 142.2mm)
18 lb
(8.16 kg)
252663-B313International High 32 A 21 NEMA L6-30P
12-ft cord
32 ×IEC 320-C13 4 ×15 A 17.5 x 1.62 x 5.6 in
(444.5 x 41.2 x 142.2mm)
18 lb
(8.16 kg)
252663-B212,3 Worldwide High 40 A 27 Hardwired
24 ×IEC 320-C13
4 ×IEC 320-C19
4 ×15 A 17.5 x 1.62 x 5.6 in
(444.5 x 41.2 x 142.2mm)
18 lb
(8.16 kg)
Single Input PDUs (Up to 12 outlets, 0U/1U mounting)
207590-B214Worldwide High 16A 10 Detachable input
cord;
IEC 320 C-20
12 X IEC320-C13 2 X 10 A 17.0 x 1.65 x 8.0 in
(431.8 x 41.9 x 203.2mm)
7 lbs
(3.2 kgs)
continued

hp ProLiant DL320 generation 2 server high-density deployment technical white paper 9
Table 5. HP PDUs (continued)
Part Number Availability Input Voltage Current Rating Maximum Servers per PDU Input Connectors and Cord Output Connectors Output Breakers Dimensions Weight
Dual Input PDU (12 Outlets, built-In Transfer switch, 0U/1U mounting)
191186-0011North America High 24 A 16 x2 NEMA L6-
30P
12-ft cord
12 ×IEC 320-C13 4 ×10 A 1.72 x 17 x 15.25 in (4.37
x 43.18 x 38.74cm)
20 lb
(9.1 kg)
191186-B311International High 30 A 20 x2 IEC 309-32A
12-ft cord
12 ×IEC 320-C13 4 ×10 A 1.72 x 17 x 15.25 in (4.37
x 43.18 x 38.74cm)
20 lb
(9.1 kg)
Note 1: This PDU supports power from two different sources. If one power source fails, the PDU uses the alternate source.
Note 2: This PDU must be hardwired to the power source by a certified electrician.
Note 3: This PDU is using the maximum rated power supply input and not the derated values.
Note 3: This PDU to discontinue 1H2003.
Figuring Type and Number of PDUs
Comment – make sure all examples use the new Modular PDUs, 252663-xxx
The type and number of PDUs required to power a full rack of servers depends on each server’s
power requirement, the number of servers deployed in the rack, and the available power for the
servers.
HP PDUs support both high-voltage and low-voltage applications. The input current rating for a
ProLiant DL320 Generation 2 server is either 1.38 A at 200 to 240 V or 2.77 A at 100 to 120 V.
To determine the number of servers supported by a PDU, divide the PDU’s current rating by the
server’s total input current rating.
IMPORTANT: The examples shown in the following sections use the maximum rating of the
power supply. They are for reference only.
Example
PDU number 295363-003 is a high-voltage PDU with a current rating of 24 A. The server has
a total input current rating of 1.38 A at 200 V.
24 A (PDU current rating)/1.38 A (server total input current rating) = 17.4
PDU number 295363-003 can support a maximum of 17 servers at full server input current
ratings.
For more information, refer to the “Power Distribution Unit High Voltage Models for North
America and International Use, (NA CPQ # 295363-002; INT'L CPQ # 295363-B31)” website:
www.hp.com/servers/proliant/manage
Example
PDU number 295363-001/291 is a low-voltage PDU with a current rating of 24 A. The server
has a total input current rating of 2.77A at 100 V.

hp ProLiant DL320 generation 2 server high-density deployment technical white paper 10
24 A (PDU current rating)/2.77 A (server total input current rating) = 8.7
PDU number 295363-001/291 can support a maximum of 8 servers at full server input
current ratings.
For more information on high-voltage PDUs, refer to the “Power Distribution Unit High-Voltage
Models for North America and International Use, (NA CPQ # 295363-002; INT'L CPQ #
295363-B31)” website:
www.hp.com/servers/proliant/manage
For more information on low-voltage PDUs, refer to the “Power Distribution Unit Low-Voltage
Models for North America and International Use” website:
www.hp.com/servers/proliant/manage
The HP ProLiant DL320 Generation 2 server does not support either a DC input power supply or
a redundant power supply. However, the power supply for this server automatically senses input
voltage level.
selecting server power cords
The appropriate server power cord to use depends on the cable management system installed in
the rack. Generally, the sliding rail cable management system requires a power cord that is
1.83 m (6 ft) in length. This length provides enough slack for the power cord to route through the
cable management solution.
high-voltage Y-cables
The Vertical-Mount PDU Bracket with High-Voltage Cables kit includes 11 Y-cables, each of
which is 3.0 m (10 ft) long. The single-cord PDU section is 1.8 m (6 ft) long, and the dual-cord
server section is 1.3 m (4 ft) long. Refer to Table 6 for part numbers.
Y-cables have a single-cord section with an IEC connector that connects to the PDU, a dividing
joint in the center, and a dual-cord section with IEC connectors that connect to the servers. One
Y-cable supplies power from the PDU to two servers in the standard configuration.
CAUTION: When installing server power cords into the PDUs, ensure that the load is
balanced among the output circuit breakers. Do not exceed the ratings of the circuit
breakers.
Table 6. HP High-Voltage Power Cables
Description HP Part # Description
10A IEC-to-IEC Cables Kit 142257-001 (6 ft)
142257-002 (8 ft)
142257-003 (10 ft)
The IEC-to-IEC cables can be used either as individual
power cords for the server or to extend the length of the
high-voltage Y-cables. The cables are available in six-,
eight-, and ten-foot lengths. The ProLiant DL320
Generation 2 Server ships with one 10-ft IEC to IEC
cable, part number 142257-003.
power cords
The server ships with an IEC-IEC power cord (PN 142257-002) used for rack mounting with
high-voltage Power Distribution Units (PDUs). For low-voltage, stand-alone deployments or
installation without a rack, country-specific power cord options are available.

hp ProLiant DL320 generation 2 server high-density deployment technical white paper 11
U.S. and Japanese models ship with two power cords - IEC-IEC and a country-specific cord:
• Power cord, US, IEC320-C13 to IEC320-C14, 10 A 250 V, Straight (10 ft/2.5 m)
(PN 142257-002)
• Power cord, US, IEC320-C13 to NEMA 5–15P, 15 A 125 V, Straight (10 ft/3 m)
(PN 103541-001)
Console Management Systems
A KVM (keyboard, video, and mouse) console management Table 7 system enables a single
keyboard and video console to control multiple servers. An in-rack console management system
may be used to manage a single rack of servers or groups of racks. The HP IP console switch
products have 16 ports that can access up to 128 servers. The HP IP Consoling Solution combines
analog and digital technology to provide flexible, centralized KVM control of data center servers.
This solution provides enterprise customers with a significant reduction in cable volume, secure
remote access, and high-performance server KVM access. Using the IP console viewer, users can
access local KVM functions from any Windows or Linux workstation by means of a 10/100
network connection. Alternatively, an off-rack console management system may also be used in
the local vicinity of the servers it manages.
Table 7. Local/IP Console Management Options
Product Name HP
Part No.
Description
1x1x16 IP Console Switch 262585-B21
16-port Keyboard Video Mouse switch - provides access for 2
simultaneous user sessions (1 network session and 1 local
session at a rackmounted console)
3x1x16 IP Console Switch 262586-B21
16-port Keyboard Video Mouse switch - provides access for up to
4 simultaneous user sessions (3 network sessions and 1 local
session at a rackmounted console)
Interface Adapters (8 per
Pack) 262587-B21 Transitions traditional keyboard/video/mouse cabling to CAT5 -
one needed for each server (convenient 8-pack)
Interface Adapters (Single
Pack) 262588-B21 Transitions traditional keyboard/video/mouse cabling to CAT5 -
one for each server
Expansion Module 262589-B21 Enables tiering of up to 8 servers per port on the IP console
switch
CAT5 Cables 3FT (4 per
Pack) 263474-B21 4-pack of 3ft UTP CAT5 cables with RJ-45 connectors
CAT5 Cables 6FT (8 per
Pack) 263474-B22 8-pack of 6ft UTP CAT5 cables with RJ-45 connectors
CAT5 Cables 12FT (8 per
Pack) 263474-B23 8-pack of 12ft UTP CAT5 cables with RJ-45 connectors
CAT5 Cables 20FT (4 per
Pack) 263474-B24 4-pack of 20ft UTP CAT5 cables with RJ-45 connectors
CAT5 Cables 40FT (1 per
Pack) 263474-B25 Single 40ft UTP CAT5 cable with RJ-45 connectors
TFT5600 Rack-Mount
Keyboard and Monitor
221546-001 1U integrated keyboard and monitor.
TFT5110R Flat Panel
Monitor
281683-B21 1U rack-optimized monitor (keyboard not included).
1U Integrated Keyboard
with Hot Keys
257054-001 1U Form Factor
In-Rack Local IP Consoles
With an in-rack local console, all equipment, servers, switchboxes, keyboards, keyboard drawers,
and video displays are installed together in the same rack. The HP switchboxes mount behind the
keyboard drawer and do not consume extra U-space in the rack. Using the TFT5600RKM and an

hp ProLiant DL320 generation 2 server high-density deployment technical white paper 12
IP console switch will consume a total of 1U to accommodate up to 128 servers. One console
switchbox can support up to 16 directly attached servers with no user blocking. Up to eight
servers may be tiered or cascaded on each switch port using either a legacy Compaq KVM switch
or an Expansion Module; however, only one user can access tiered switches or servers connected
by Expansion Modules at any one time. Critical devices requiring frequent access should be
attached directly to a switch port. Server accessibility should be assessed by the IT manager prior
to deployment to determine the appropriate server density per console switch.
Table 8 outlines the number of devices that fully populate a 47U, 42U or 36U rack with an in-
rack local console (Figure 1).
Table 8. Device Configuration for an In-Rack Local IP Console
Device or Cable 47U Rack 42U Rack 36U Rack
ProLiant DL360/320 Generation 3
Servers
46 41 35
KVM IP Console Switches 1 1 1
Interface adapters 46 41 35
UTP CAT5 cables for KVM access 46 41 35
Expansion modules 4-16 3-16 3-16
TFT5600 RKM (integrated
monitor/keyboard)
1 1 1
Each server deployed in a fully populated rack with an in-rack IP console management system
requires the following accessories for successful deployment and operation:
• Interface adapter
• UTP CAT5 cable [1.8 m (6-ft) cables for sliding rail solutions].
• Universal Rack Rail (the quick deploy rail kit that ships standard with the server and comes
with a cable management solution), or the option Sliding Rail Kit (with cable management
solution), or optional telco rack solution, or third party rail kit.

hp ProLiant DL320 generation 2 server high-density deployment technical white paper 13
Figure 1: Console Management System
planning rack configurations
Consider several important factors when planning a rack configuration:
• The number of servers deployed in the rack

hp ProLiant DL320 generation 2 server high-density deployment technical white paper 14
• The number of other devices such as keyboards, keyboard drawers, video displays, and
console switchboxes that support the servers
• The number of PDUs and their orientation
• The type of rack
• The rack management system
• The console management system
• The remote management system
• The network interface scheme
All of these factors influence floor support requirements, future service and upgrade
requirements, and installation requirements.
IMPORTANT: HP recommends populating a rack with servers and other rack option products
only after the rack is in or very near its final position. HP does not recommend transporting a
fully populated rack.
weight considerations
Table 9 lists the weight and power specifications for Compaq branded racks and rack option
products. To calculate floor support requirements for a particular rack configuration, add the
weight measurements to calculate the total weight of a rack fully populated with servers. See the
following example:
1 ×10642 rack 114 kg (253 lb)
36 ×ProLiant DL320 Generation 2 server
with hard disk drives (16 kg/37 lb each)
604 kg (1,332 lb)
36 ×Cable management system 76 kg (168 lb)
2 ×High-voltage PDUs with brackets 17 kg (38 lb)
18 ×High-voltage Y-cables 9 kg (21 lb)
36 ×Keyboard/Video/Mouse cables 27 kg (59 lb)
Total configured rack weight 848 kg (1,871 lb)
IMPORTANT: Populate a rack with ProLiant DL320 Generation 2 servers and other rack
option products only after the rack is in or very near its final position. Do not transport a fully
populated rack.

hp ProLiant DL320 generation 2 server high-density deployment technical white paper 15
Table 9. Compaq Branded Rack and Related Options Weight (and power if applicable)
Option Note Weight Power
Compaq Branded Rack
10642 (42U)
Without the side panels 114.84 kg (253 lb)
Compaq Branded Rack
9142 (42U)
Without the side panels 114.76 k (/253 lb)
Compaq Branded Rack
9136 (36U)
Without the side panels 74.84 kg (165 lb)
Compaq Branded Rack
7142 (42U)
Without the side panels 114.76 kg (253 lb)
High-voltage Power Y-cable 10 ft 0.45 kg (1 lb)
Keyboard/Video/Mouse
molded cable
6 ft 0.64 kg (1.42 lb)
High-voltage 16 A PDU 4.99 kg (11 lb)
High-voltage 24 A PDU 4.99 kg (11 lb)
Low-voltage 24 A PDU 4.99 kg (11 lb)
Keyboard/trackball With sliding tray 7.26 kg (16 lb)
TFT5010R Flat Panel
Monitor
With sliding tray 22.00 kg (48.5 lb) 45 W
TFT5600 Rack-mount
keyboard and monitor
With sliding tray 6.24 kg (13.75)lb 50 W
Server Console Switch 1 x 8 port (100-230 V AC) 2.38 kg (5.25 lb) 100 W
rack builder online
HP Rack Builder Online is a tool that assists in planning and configuring new racks. It provides
users with a powerful web-based tool for configuring one or many racks with HP components.
Using either a simple guided interface or a “build it yourself” mode for advanced users, rack
configurations are created using a complete and current database that includes all HP
rack-mountable products. To access HP Rack Builder Online, see
www.compaq.com/rackbuilder

hp ProLiant DL320 generation 2 server high-density deployment technical white paper 16
special considerations for Compaq branded racks
WARNING: Follow these guidelines to reduce the risk of personal injury or damage to
the equipment:
• Do not install a server into a rack until the rack has been placed in its final location.
• Pre-install slide rails, PDUs, power cords, and cables into the rack in a build room or
other location before moving the rack to its final location.
• Extend the leveling jacks to the floor and rest the full weight of the rack on the jacks
b
efore installing any servers. The casters are not designed to support the full weight of
a populated rack.
• Do not attempt to move a rack populated with servers. A fully populated rack can
weigh up to 848 kg (1,871 lb) pounds. Moving a populated rack can cause the rack to
become unstable, resulting in serious personal injury or equipment damage.
To effectively cool the servers in a Compaq branded 7000-series rack, replace the front door of
the rack with the High Air Flow Rack door. Insert before deploying the servers in the rack.
HP strongly recommends using the HP Rack Extension kit (P/N 154392-B21) to alleviate any
space problems for cable bundles at the rear of a Compaq branded 7000-series racks.
rack management systems
HP recommends using the standard rack rails and cable management solution. The rack
management solution installed in the rack determines the position of the PDUs installed in the
rack side panels. To determine the best rack management solution, consider the service and
upgrade demands of the servers deployed in the rack.
IMPORTANT: Read the HP Ultra-Dense Server Deployment in Third-party Cabinet Racks or
the HP Ultra-Dense Server Deployment in telco Racks before deploying ProLiant DL320
Generation 2 servers in a third-party rack or telco rack.
optional sliding rack rails
The optional sliding rack rails and cable management solution work best with a rack of servers
that are frequently serviced or upgraded. With this solution, a server can be powered down and
serviced without disconnecting the server cables or removing the server from the rack.
The optional sliding rack rails and cable management solution are designed for 29-in deep,
square-hole racks. The sliding rack rails compress and snap securely in place in the rack without
screws or nuts.
The cable management solution attaches directly onto the rear of the server and the rear of the
rack. It secures and routes the cables along the rear of the rack. This not only prevents the cables
from sagging and tangling, but it also enables proper air ventilation through the rack while
enabling the servers to be fully extended without disconnecting any of the server cables.
The standard rack rails and cable management solution are conducive to in-rack servicing and
provide convenient access to the server cables and connectors. Refer to the HP ProLiant DL320
Generation 2 Setup and Installation Guide for complete installation instructions.

hp ProLiant DL320 generation 2 server high-density deployment technical white paper 17
third-party rack cabinet solution for non-Compaq branded racks
Because not all customers use Compaq branded racks, the server design supports deployment in
third-party rack cabinets. HP offers a Third-Party Rack Cabinet kit to use in installing ProLiant
DL320 Generation 2 servers in third-party racks. This kit includes variable length rack rails that
are compatible with a variety of third-party racks. The Third-Party Rack Cabinet kit can be
installed in racks that are 610 mm (21 in) to 740 mm (29.13 in) deep.
IMPORTANT: Always install the HP Third-Party Rack Cabinet kit when deploying a ProLiant
DL320 Generation 2 server in a third-party rack. The kit supports the same cable management
solution that the standard fixed rack rail solution uses.
telco rack solution
Many data centers use telco racks. The server design supports deployment in telco racks. HP
offers a telco rack kit for installing ProLiant DL320 Generation 2 servers in telco racks. This kit
includes rack rails and screws that are compatible with a variety of telco racks. The telco rack kit
includes replacement server rails designed to fit on the server. Before deploying servers into a
telco rack, remove the standard server rails and replace them with the telco server rails included
in the telco rack kit.

hp ProLiant DL320 generation 2 server high-density deployment technical white paper 18
suggested rack configurations
Listed in Table 10 is a Quick Reference table with suggested rack configurations for deploying
the ProLiant DL320 Generation 2 servers. Examples of these configurations are given in the
“Configuration A”, “Configuration B”, and “Configuration C” sections of this paper.
Table 10. Suggested Rack Configurations Quick Reference
Configuration A B C
Priority Maximum Performance
Density
Maximum Flexibility Traditionalist
Rack Size 42U 42U 42U
Server Count 42 35 28
Power Source High Voltage Low Voltage Low Voltage
Rack Level Power
(derated)
9996W 8750W 7000W
PDU 2x40 Amp Modular PDU 2x40 Amp Dual Input PDU 4x24 Amp Dual Input PDU
KVM No Local KVM Console 52x8 Port KVM Switch
IP Connections 6x16 Port Switch (0+16) for
Data
2x24 Port Switch (0+16) for Data
configuration A: maximum performance density (42 derated servers, 24
A high voltage)
This configuration shows a “best practice” for a 42U rack with 42 servers in a high-voltage
facility where a deployment plan can accommodate the derating of each server. The “power and
thermal budgeting” section of this paper explains power budgeting methods and measured power
for different base-line configurations and subsystem components. The following calculation
verifies supporting 42 servers with 24 A high-voltage PDUs:
Since there are 2 PDUs to support 42 servers, each PDU needs to support 21 servers. A 24 A
high-voltage PDU supporting 21 servers can allocate each server with a maximum current of
24/21 = 1.143 A at 208 V. Therefore, the allocated maximum input power for each server will be:
1.143 A * 208 V = 238 W
The maximum thermal dissipation per server will be:
238 W * 3.41 = 812 BTUs/hour
For 42 servers, the total thermal dissipation will be 812*42 = 34,104 BTUs/hour.
In the “power and thermal budgeting” section, a fully configured system was measured to
consume lower than 250 W (Table 3, server configuration 4). If each derated server configuration
input power is lower than 238 W, then 42 servers can be supported with this configuration
summary.

hp ProLiant DL320 generation 2 server high-density deployment technical white paper 19
Table 11. Configuration A Summary
Configuration A Summary
Rack Contents
Units
42 Servers with all fixed or all sliding rails with cable trays
2 High Voltage 24 A PDUs vertically mounted in the side panel compartments
Internal Cables
22 Y-Power cords going to 2 PDUs in the side panels
Cables External to Rack
42 Management network cables from the optional RILOE RJ-45 connectors to external switches
42 Data network cables from on-board RJ-45 to external switches, assuming use of only one LAN connection per
server
2 Input power cords from the rack to external power outlets
Site Utility Requirements (worst-case)
Power: 2 Dedicated 200 V-240 V 30 A branch circuits.
Thermal: Up to 34,100 BTUs/hour [This number is a worst-case. The actual BTUs/hour will depend on the
OS/application software running and the server hardware configurations.]
Weight: Up to 1,665 lb (with sliding-rails) [The network cables are not accounted for since most implementations
route the network cables to the ceiling-hung cable rails outside of the rack.]
Configuration A Parts List
ProLiant DL320 Generation 2 Sliding Rail Option Kit, P/N
233274-B21
High Voltage 24 A PDU Option, P/N 207590-D72
Vertical-Mount PDU Bracket Kit with High Voltage Cables,
P/N 191265-B21
Qty.
42
2
2
Notes
Optional for in-rack servicing
N.A.
Contains 4 PDU brackets and
11 Y-power cords
The optional HP Remote Insight Lights-Out Edition II is recommended for all console
management, local and remote, for this configuration. The network cables originating from each
server connect to network switches outside this rack enclosure. This configuration still
accommodates a “walk-up” local console, whereby a person can walk up to the rear of the rack
and plug in a set of KVM cables to any server rear panel in the rack.
Note: This list does not include the rack, the servers and the network cables. At this time, only
one model of the high current (24 A) high-voltage PDU is available. This configuration can be
used in regions where NEMA electrical standards are followed.

hp ProLiant DL320 generation 2 server high-density deployment technical white paper 20
Server 01
Server 02
Server 03
Server 04
Server 05
Server 06
Server 07
Server 08
Server 09
Server 10
Server 11
Server 12
Server 13
Server 14
Server 15
Server 16
Server 17
Server 18
Server 19
Server 20
Server 21
Server 22
Server 23
Server 24
Server 25
Server 26
Server 27
Server 28
Server 29
Server 30
Server 31
Server 32
Server 33
Server 34
Server 35
Server 36
Server 37
Server 38
Server 39
Server 40
Server 41
Server 42
PDU Extension Bar
PDU Extension BarPDU Extension BarPDU Extension Bar PDU Extension Bar
PDU Extension Bar PDU Extension BarPDU Extension Bar
40 A PDU Control Unit
2x High Voltage Power Feeds
40 A PDU Control Unit
Figure 2. Configuration A (Maximum Performance Density) Power Diagram