Hewlett Packard Enterprise HPE G2 User manual

HPE G2 Racks best practices
Technical white paper

Technical white paper
Contents
Introduction...................................................................................................................................................................................................................................................................................................................................................3
HPE G2 Rack design.............................................................................................................................................................................................................................................................................................................................3
Safety and security...........................................................................................................................................................................................................................................................................................................................3
User experience ..................................................................................................................................................................................................................................................................................................................................3
Power and cooling efficiency ..................................................................................................................................................................................................................................................................................................3
Datacenter optimization..............................................................................................................................................................................................................................................................................................................3
Interoperability.....................................................................................................................................................................................................................................................................................................................................4
HPE G2 Rack overview.......................................................................................................................................................................................................................................................................................................................4
Certification and regulatory compliance.............................................................................................................................................................................................................................................................................5
Waste Electrical and Electronic Equipment directive .............................................................................................................................................................................................................................................5
Integration services and software.............................................................................................................................................................................................................................................................................................6
HPE Factory Express .....................................................................................................................................................................................................................................................................................................................6
HPE Infrastructure Architect...................................................................................................................................................................................................................................................................................................6
HPE Power Advisor.........................................................................................................................................................................................................................................................................................................................6
Rack deployment considerations ..............................................................................................................................................................................................................................................................................................6
Levels of rack security...................................................................................................................................................................................................................................................................................................................6
Stabilization requirements ........................................................................................................................................................................................................................................................................................................7
Space and cable management requirements..........................................................................................................................................................................................................................................................9
Thermal requirements ..............................................................................................................................................................................................................................................................................................................10
Rack assembly guidelines......................................................................................................................................................................................................................................................................................................10
Installation and maintenance precautions..............................................................................................................................................................................................................................................................11
Rack-mountable products.....................................................................................................................................................................................................................................................................................................11
Installation planning and considerations........................................................................................................................................................................................................................................................................ 12
Environmental considerations ...........................................................................................................................................................................................................................................................................................12
Third-party thermal considerations..............................................................................................................................................................................................................................................................................13
Power considerations.................................................................................................................................................................................................................................................................................................................13
Compatibility......................................................................................................................................................................................................................................................................................................................................14
Grounding and earth leakage current ........................................................................................................................................................................................................................................................................ 14
Equipment clearance and floor loading...........................................................................................................................................................................................................................................................................15
Rack and accessory footprints ..........................................................................................................................................................................................................................................................................................16
Front door clearance ..................................................................................................................................................................................................................................................................................................................17
Qualified shipping................................................................................................................................................................................................................................................................................................................................18
Qualification of rack components for shipping...................................................................................................................................................................................................................................................18
Rack shipping enclosures.......................................................................................................................................................................................................................................................................................................18
Packing materials and shipping requirements..........................................................................................................................................................................................................................................................19
Preparation for shipment .......................................................................................................................................................................................................................................................................................................20
Site preparation for receiving integrated racks..................................................................................................................................................................................................................................................20

Technical white paper
General considerations.............................................................................................................................................................................................................................................................................................................21
Special shipping considerations.......................................................................................................................................................................................................................................................................................22
Door height clearances ............................................................................................................................................................................................................................................................................................................22
Modes of shipment ......................................................................................................................................................................................................................................................................................................................23
Airfreight................................................................................................................................................................................................................................................................................................................................................23
Mode of receiving and delivery ........................................................................................................................................................................................................................................................................................ 25
HPE Infrastructure Rack packing and shock pallet assembly ..............................................................................................................................................................................................................25
Dismounting an Infrastructure Rack from a shock pallet..........................................................................................................................................................................................................................33
Installation service...............................................................................................................................................................................................................................................................................................................................33
Spares kits............................................................................................................................................................................................................................................................................................................................................33
Additional tools and equipment.......................................................................................................................................................................................................................................................................................33
HPE Rack warranty ............................................................................................................................................................................................................................................................................................................................34
Conclusion..................................................................................................................................................................................................................................................................................................................................................34
Appendix A: Glossary .......................................................................................................................................................................................................................................................................................................................35
Appendix B: Torque values......................................................................................................................................................................................................................................................................................................... 36
Resources....................................................................................................................................................................................................................................................................................................................................................38

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Introduction
The initial Hewlett Packard Enterprise (HPE) G2 Rack product introduction includes HPE G2 Advanced Racks, announcement of the next
generation of HPE Standard Series G2 Basic Power Distribution Units (PDUs), and the HPE Infrastructure Architect application to help you
identify the best HPE Rack and Power Infrastructure products for your data center configuration. HPE G2 Advanced Series Racks will continue to
use pre-existing rack accessories with the exception of several new accessory kits including: side panels, grounding kit, baying kit, stabilization kit,
and roof-mount fan kits.
HPE G2 Racks redefines intelligent infrastructure design for the mid-size business and provides a better foundation for the IT of the future. An
intelligent datacenter does more for your business in less time and for less money. HPE has reimagined intelligent infrastructure design from the
ground up and identified five business challenges that present opportunities for improved infrastructure to drive better business practices:
•Safety and security
•User experience
•Power and cooling efficiency
•Datacenter optimization
•Interoperability
HPE G2 Rack design
The HPE G2 Rack product family was designed to address these business challenges in the following ways:
Safety and security
HPE G2 Rack and Power infrastructure is positioned to address existing and evolving security threats. Provisions for third-party locking solutions
(biometric, electronic, and keyed) keep your servers where they belong (you can read more about these capabilities in the “Levels of rack
security” section). HPE also offers locking IEC power cords that lock to, both, the power distribution unit (HPE G2 units only) and to the target
device (server, storage, or networking hardware) regardless of make or model.
User experience
The HPE user experience is assured through the available tools that provide information to guide your choices and the strength of HPE Rack
and Power infrastructure to provide you with unmatched performance and reliability. The HPE Infrastructure Architect application (found at
hpe.com/info/rackandpower) guides you to the right products based on your workload, budget, and location. And then HPE Power Advisor helps
you plan how much power you’ll use month-to-month based on your planned or existing infrastructure. Toolless installation, low-profile PDUs,
and improved cable management provisions get your new infrastructure up and running faster, whether it’s out-of-the-box or finding and fixing a
problem during mid-lifecycle. If you’d prefer to purchase everything assembled and ready to go, our Factory Express option builds the industry’s
best datacenter solutions on the industry’s best racks, and ships it directly to your door.
Power and cooling efficiency
Power costs are the number one operating expense for most IT infrastructures. And of course, the more power servers consume, the hotter they
get. HPE PDUs can safely operate in ASHRAE A1 – A4 environments up to 60 degrees Centigrade (that’s 10 degrees above industry standard),
and 80% front-door open perforation on our racks (16% higher than the industry leader) allows for greater airflow that helps to minimize cooling
costs.
Datacenter optimization
Datacenter space is often at a premium, and less room spent on infrastructure means more room for compute. HPE G2 Rack infrastructure is
Intelligent, efficient datacenter infrastructure that deploys faster and in less space than existing infrastructures, leaving more room for compute
and boosting your servers, storage, and networking capabilities.
HPE G2 Rack infrastructure is taller and wider with deeper racks, while maintaining the same, industry-leading durability guaranteed with a 10-
year warranty. HPE PDUs have been redesigned and utilize toolless installation with more outlets per rack U than any competitor.

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Interoperability
Datacenter infrastructure isn’t always purchased at once, isn’t always purchased from the same vendor, and isn’t always designed to work
together with other IT and infrastructure hardware. HPE testing for interoperability and conforming to industry standards is key to effective
product development, and to eliminating problems in purchase, deployment, operation, and maintenance.
While HPE Rack and Power infrastructure utilized to the best advantage as the foundation of an HPE homogeneous datacenter, HPE
understands that most datacenters are heterogeneous. With that in mind, HPE Rack and Power products are built to match EIA-310 industry-
standard specification.
HPE’s industry-leading datacenter solutions start with HPE Rack and Power Infrastructure. Our Rack and Power Infrastructure portfolio of
products is designed for HPE servers, storage, and networking – better together and working to drive your business further.
HPE G2 Rack overview
This document outlines recommended practices for configuring, installing, transporting, and establishing a work environment for HPE G2 Racks,
HPE G2 rack transport descriptions include the information shown in Figure 1.
Figure 1. Rack transport configurations
Rack transport configurations for HPE 22U, 36U, 42U, and 48U G2 Advanced Racks include the pallet types listed in Table 1.
Table 1. HPE G2 Advanced rack sizes and transport configuration
RACK
KIT TRANSPORT CONFIGURATIONS* PART # PALLET TYPE
HPE 22U 600mmx1075mm
G2 Advanced Kitted P9K03A Pallet Rack
HPE 22U 600mmx1075mm G2 Advanced Kitted
P9K04A Shock Rack
HPE 36U 600mmx1075mm G2 Advanced Kitted
P9K05A Pallet Rack
HPE 36U 600mmx1075mm
G2 Advanced Kitted P9K06A Shock Rack
HPE 42U 600mmx1075mm
G2 Advanced Kitted P9K07A Pallet Rack
HPE 42U 600mmx1075mm G2 Advanced Kitted
P9K08A Shock Rack
HPE 42U 600mmx1200mm G2 Advanced Kitted
P9K09A Pallet Rack
HPE 42U 600mmx1200mm
G2 Advanced Kitted P9K10A Shock Rack
HPE 48U 600mmx1075m
m G2 Advanced Kitted P9K19A Pallet Rack
* All kits include Side Panels and Baying

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For complete specifications and product listings of the HPE G2 Advanced Series Racks, refer to the following links:
•HPE G2 Advanced Series Rack QuickSpecs
•HPE Racks for Server, Storage, and Networking family datasheet
•HPE G2 Advanced Series Rack documents and tools
For a complete list of HPE rack options and accessories, go to the main rack page at hpe.com/us/en/integrated-systems/rack-power-cooling.html
For a list of ProLiant servers and options, go to hpe.com/info/proliant
For a complete list of HPE server storage equipment, go to hpe.com/info/serverstorage
Note
See the Resources section at the end of this document for a more complete listing of HPE G2 Advanced Series rack resources.
Certification and regulatory compliance
HPE G2 Advanced Series Racks, while UL qualified, are defined as nonfunctional mechanical storage bays and, therefore, are not certified as
electrical products. The rack does not serve as an overall safety or EMI-rated enclosure, nor does it carry any other agency compliant rating.
However, any product intended for use in an HPE rack should be individually certified as a standalone product. For example, HPE Power
Distribution products, such as uninterruptible power supplies (UPSs) and power distribution units (PDUs) are fully certified as standalone
products.
Certain third-party products may not be fully certified as standalone products. Any product that does not meet standalone certification is not
included in any HPE-specified rack configuration and should not be installed in an HPE rack.
HPE General Specification for Environment (GSE) specifications prohibit or restrict the use of certain chemical compounds in products or in the
manufacture of products. HPE complies with the GSE specifications and restricts the use of these compounds in the development or
manufacture of any HPE product (including third-party supplier product).
The Infrastructure Racks are designed to comply with the applicable safety requirements for Information Technology Equipment (ITE) when the
rack is configured with properly certified equipment. HPE Infrastructure Racks are considered ITE compliant when the following conditions are
met:
•The rack is populated with individually certified products.
•All installation guidelines and instructions are followed.
Waste Electrical and Electronic Equipment directive
The directive on Waste Electrical and Electronic Equipment (WEEE) requires manufacturers to finance the take back and recovery of waste from
electrical and electronic equipment at the end of its useful life.
Any product or product packaging marked with the symbol in figure 2 must not be disposed of with other household waste. The user must
dispose of the product by delivering it to a designated collection point for the recycling of waste electrical and electronic equipment. For more
information about locations to drop off equipment for recycling, contact a local city office, the household waste disposal service, or the business
where the product was purchased.

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Figure 2. Waste Electrical symbol
Integration services and software
Several resources are available for planning rack configurations. Those resources include HPE Factory Express, HPE Infrastructure
Architect, HPE Power Advisor, and HPE rack documentation.
HPE Factory Express
Factory Express is a robust portfolio of flexible, pre-priced, configured, customized, and integrated factory solutions and deployment services
supporting HPE products from the desktop to the data center with Windows®, Linux®, and HP-UX.
For specific information, see the HPE Factory Express link: hpe.com/info/factoryexpress
In addition to this available integration option, HPE also provides information links and contacts for questions regarding rack and product
compatibility. Go to hpe.com/us/en/integrated-systems/rack-power-cooling.html for more information.
HPE Infrastructure Architect
You can use HPE Infrastructure Architect to build a custom infrastructure solution. This tool is for salespeople, channel partners, and experienced
IT buyers. It’s a simple mix-and-match application that ensures the infrastructure you buy will work with the servers, storage, networking, and
power supply infrastructure you already have. And when completed, the tool will also connect you to an HPE salesperson that can have your
solution shipped to you. You can find the HPE Infrastructure Architect at iallb.itcs.hpe.com/.
HPE Power Advisor
HPE Power Advisor is an easy-to-use tool that estimates your data center power requirements for your server and storage configurations.
Version 6.x includes the new HPE ProLiant Gen 9 servers and options as well as a new Smart Update feature that automatically updates your
application when opened.
Rack deployment considerations
The following sections describe the HPE components and options available for the HPE G2 Racks that are available to achieve safety, regulatory
compliance, or functionality requirements.
Levels of rack security
Either of the following conditions may be necessary to comply with certain safety certifications:
•Racks must be located in a restricted access area that is only accessible to trained personnel.
•Racks must be configured with lockable hardware.
HPE rack front doors, rear doors, and side panels support this locking requirement. Rear split doors are standard. HPE G2 Racks also include new
tooling that allows you to easily remove the default lock and replace with a third-party lock (See Figure 3).

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Figure 3. Third-party locking options
HPE Infrastructure Rack front doors
All HPE G2 Rack models ship with front doors. The 600mm wide 36U, 42U, and 48U front doors (and necessary hardware) are backwards
compatible with the G1 Series Racks of the same width and height; this enables customers to have all 600mm wide racks standardized with the
same updated look, if desired.
HPE Infrastructure Rack rear doors
All HPE G2 Rack models ship with rear doors as part of the standard configuration. The Infrastructure Rack rear door has been upgraded to
provide additional open space for exhaust air.
HPE Side Panel Option Kit
Side panels aid in providing proper front-to-rear airflow and a first level of security. Side Panel Option Kits are available for all rack models.
Rack options installation instructions can be found in the HPE Rack Options Installation Guide at:
hpe.com/hpsc/doc/public/display?docId=emr_na-c03209378&lang=en-us&cc=us
Note
All G2 Advanced Series Racks ship with side panels; however, side panels are also available as option kits.
Stabilization requirements
Rack stability is of special concern when equipment is routinely installed, removed, or accessed within the rack. Stability is addressed with a
combination of leveling feet, baying kits, fixed stabilizers, and ballast.
Leveling feet
Leveling feet ship installed in each rack. It allows stabilization and levels the racks at the installation site. HPE Infrastructure Rack hardware kits
also include leveling pads that are used with the feet during rack stabilization.
HPE Baying Kit
Baying kits are used to physically connect adjacent racks to create a row of two or more units. Racks that are bayed together with a baying kit are
more stable and reduce the potential of the rack to tip. G2 Advanced Series Racks ship with baying kits that allow for baying with side panels

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installed. The same baying kit will support the 10000 G2, Advanced, and G2 Advanced Racks. This baying kit is used to connect racks of the
same depth.
HPE Offset Baying Kit
Offset baying kits are used to connect adjacent racks that are of a different depth. Kits are available that support the connection of 1075mm
deep racks to both 1200mm racks and older 1000mm deep racks.
HPE Stabilizer Kit
Fixed stabilizers are anti-tip feet (front and side) that provide stability and support when equipment is installed, removed, or accessed within the
rack. Both HPE 600mm stabilizers and HPE Heavy Duty 600mm stabilizers are available. For single racks or bays of three racks, with rack-
mountable components, on extendable rails, that are less than 100 kg (220 lb.), a standard 600mm stabilizer is required.
If racks are secured together with baying kits, the side feet installed on each end of the row of racks are considered optional. Rack rows with four
or more bayed racks do not need a stabilizer kit installed.
HPE recommends using stabilizer option kits when one or more of the following situations occur:
If a standard 600mm (23.62 in) front stabilizing foot is installed on a standalone rack, the side feet, provided with the fixed stabilizer kit, should
also be installed to stabilize standalone racks from the side.
•A heavy-duty 600mm (23.62 in) front stabilizer foot is required in either of the following situations:
–A single rack-mountable component, on extendable rails, weighing 100 kg (220 lb.) or greater is installed in a standalone rack.
–A rack row of three or fewer racks are bayed together
•To reduce the risk of personal injury or damage to the equipment, be sure that:
–The leveling feet are extended to the floor
–The full weight of the rack rests on the leveling feet
–The stabilizing feet are attached to the rack if it is a single-rack installation
–The racks are coupled together in multiple-rack installations
–Only one component is extended at a time or the rack may become unstable
HPE Ballast Option Kit
Ballast plates add weight to a rack and improve side-to-side and front-to-back mechanical stability for standalone racks or a row of three or fewer
racks bayed together. Ballast plates fit in the zero-U space at the interior sides of the rack and should be installed into the rack prior to
installation of any other equipment.
When increasing rack weight, it is important to consider that a rack with a light static load (less than 95 kg/210 lb.) should have ballast plates
installed to provide extra weight, thus reducing the possibility of the rack tipping over if a significant force were to be applied to the rear or side
of the rack. Racks with a heavier static load (greater than 95 kg/210 lb.), depending on the particular configuration involved, may not require
ballasts.
Multiple ballast kits may be necessary to provide sufficient weight. Each kit contains two 18 kg (40 lb.) ballast plates. Ballast plates should be
added to the rack until the total weight of components installed into the rack is at least 95 kg (210 lb.).
For example, a lightly loaded rack configured with 23 kg (50 lb.) of equipment requires two ballast kits (four ballast plates). The total weight of
four ballast plates is 72 kg (160 lb.). Therefore, the total installed weight of the rack components would be 95 kg (210 lb.), the minimum
recommended rack installed component weight.
Should any rack component on extendable rails weigh more than 46 kg (100 lb.), there must be an additional 95 kg (210 lb.) of equipment
weight in the rack (excluding the weight of the component) to provide balance and maintain rack stability when the component is extended on
its rails. In this instance, ballast plates should be added until the total rack component weight is 138 kg (300 lb.) or greater.
Total weight of installed equipment along with total weight of ballast plates is equal to total rack component weight.

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Depending upon the installed components, racks may require both ballast and stabilizer.
Warning
To reduce the risk of personal injury or damage to equipment, extend only one component at a time. The rack may become unstable if more than
one component is extended.
Stabilization for seismic activity
Rack installations in geographical areas where there is a risk of seismic activity may require special considerations for stabilizing the rack. Consult
your local building code or a licensed building engineer.
Important
The Infrastructure Racks are certified to meet International Building Code (IBC) standards in all regions. Within the IBC, the HPE Enterprise Racks
fall within the nonstructural component category, specifically mechanical and electrical components. The equipment is assumed to include
communication equipment, computers, instrumentation, and controls.
Note
Network Equipment Building Systems (NEBS) Zone 4 or Office of Statewide Health Planning and Development (OSHPD) ratings are outside of
standard data center rack compatibility and require a solution-based approach that addresses the rack and all installed components.
A building engineer will need to determine the requirements for which, if any, ballast and stabilizer kits are required. If the rack is bolted to the
floor or to adjacent racks that have sufficient combined weight, additional stabilization products may not be required.
HPE Tie Down Option Kit
The Rack Tie Down Kit provides a means for meeting IBC guidelines to anchor an HPE G2 Rack to the floor in geographical areas prone to
seismic activity. This product provides a solution to aid in avoiding damage or serious injury in the event of building or floor movement.
Space and cable management requirements
The HPE G2Advanced Series Racks include cable management and other options allow you to customize your rack. There is a rear PDU and
Accessory Mounting Bracket to ease cable management and installation of PDUs,
1200mm Deep Racks
Cables and equipment can be damaged in use or in shipping if there is insufficient room in the rack. The 1200mm extended depth rack can be
used when additional room is required at the rear of the rack to provide adequate space for equipment and associated cables.
Cable management kits
Due to the dynamic nature of the rack environment, the cabling of systems has very few hard rules. HPE Cable management kits provide an easy
way to organize and route cables within racks. The HPE Rack Cable Management Kit includes a 1U and 2U front cable entry panel with brush
inserts, 2x crossover cable brackets, 10x D-rings, 10x hook and loop straps 8 inch, 10x hook and loop straps 10 inch, mounting hardware.
Several kits are available as options to assist with cabling requirements.
Additional information on HPE cable management kits is available at hpe.com/info/rackandpower. HPE general guidelines for cable management
are as follows:
•Use the HPE One Config Simple (OCS) available at hpe.com/SimplifiedConfig/Welcome to fully plan the rack and server setup prior to
installation.
•For good visual reference, do not install cabling until all equipment is installed in the rack.
•Avoid dressing cabling tightly over sharp edges of railing or panels.
•Do not pinch cables between components.

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•Avoid tight-bend radii. Cables should never be bent tight enough to cause a crease in the sheathing. Fiber cables must not violate their
minimum bend radius without exception.
•When securing cables inside the rack, the bundle should be dressed in such a way as to avoid interference with installed components or rack
side panels or rails.
•When possible, use all cable management arms included in component kits.
•For components that must be movable while powered on, ensure a full range of motion is possible without cable interference or disconnect.
Cables dressed on management arms must be secured enough to prevent movement into interference or pinch areas, yet not so tight as to
cause binding to the arm.
•Separate power and signal cables as much as possible. For example, dress all signal cables on the left side of the rack and all power cables on
the right side of the rack.
•Ensure that cabling does not impede the airflow to the rack-mountable servers or increase the internal rack temperature beyond the specified
maximum rating.
A list of available extension kits can be found on the main rack options product page at hpe.com/info/rackandpower.
Thermal requirements
Equipment that is exposed to excessive heat may not operate correctly and may experience abnormally high failure rates. The Infrastructure
Rack air flows from the front to the rear of the rack. Roof-mounted fan kits may help meet additional thermal requirements of rack-mounted
equipment and are used to keep the ambient temperature inside the rack within the specified operational limits of the equipment.
Rack assembly guidelines
Table 2 lists guidelines to follow when physically placing components in an Infrastructure Rack.
Table 2. Rack assembly guidelines
COMPONENT
GUIDELINE
Weight
Sort all components by weight, placing the heaviest components at the bottom of the rack.
Keyboard/video/mouse (KVM) switchbox
Mount the switchbox either behind the keyboard or within a sidewall cavity to provide a zero-U space
solution.
Keyboard/integrated keyboard monitor
When using any size rack, install the keyboard/integrated keyboard monitor at a level that is in the
correct ergonomic position where your shoulders and neck are relaxed.
Monitor
Ergonomic considerations should drive the placement of a monitor in the rack, whether it is a CRT or
flat-panel design. It is recommended to arrange the screen or rack-mountable flat-panel monitor a
minimum of 4Us above the keyboard tray. Most customers prefer to place the video system high in
the rack, especially in a full rack, to allow easier access to other system components below it.
Balance
When baying racks to create a row, be sure to distribute the weight load among the racks and place
the heaviest components at the bottom of each rack. For example, if you have several uninterruptible
power supply (UPS) units and several servers, do not put all of the UPS units into one rack—distribute
the weight evenly in the bottom positions of each rack.
For further information regarding component placement, refer to the Important Safety Instructions that are shipped with the rack and with the
“Safety and Comfort Guide”

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Installation and maintenance precautions
To reduce the risk of electric shock or damage to the equipment when installing, maintaining, or servicing Enterprise products, observe the
general precautions listed in table 3.
Table 3. Rack assembly guidelines
PRECAUTION
DESCRIPTION
Follow manufacturer instructions
Always refer to the individual equipment installation instructions for any special considerations when
installing equipment in a rack.
Be aware of power voltages and use trained personnel
Some Enterprise products are capable of producing hazardous voltages and hazardous energy levels.
The installation of internal options and routine maintenance and service of these products should be
performed only by individuals who are knowledgeable with the procedures, precautions, and hazards
associated with this type of equipment. Refer to the documentation included with each product to
determine whether it belongs in this category.
Secure
all equipment
Unless the equipment is installed in a restricted access area, rack equipment should be operated only
with all enclosures in place and properly secured. Always refer to the equipment installation guide and
follow all applicable warnings and precautions.
Provide overhead clearance for fire sprinkler devices
A minimum clearance is required between the top of the rack and any fire protection sprinkler devices.
Check your local building codes for details.
Moving racks with casters
Racks with casters should be moved with care. Sudden stops, excessive force, and uneven surfaces may cause the product to overturn. HPE G2
Racks have casters that are fixed in the front and swivel in the rear due to stability and safety concerns. Therefore, it is both recommended and
easier to move the rack with the back as the leading edge. For long and straight runs, roll the rack with the front, fixed casters leading. For
maneuverability when moving the rack into a tight spot, it is better to lead with the rear, swiveling the casters. When rolling the rack, make sure to
push firmly on the front doorframe and not the door mesh.
Warning
To reduce the risk of personal injury or damage to the equipment, do not attempt to move large equipment racks alone. Obtain adequate
assistance to stabilize the rack during movement or hire professional equipment riggers.
Caution
To reduce the risk of damage to the casters, make sure that the full weight of the rack rests on the leveling feet (when in position) and not on the
casters. The casters are designed only as an aid in moving the rack into position. They are not designed to support the weight of the rack, and
the casters may become damaged if relied on to support the rack.
Rack-mountable products
Because computer components are stacked vertically in a rack, adhere to the following precautions to facilitate rack stability:
•Use the configuration you prepared with the HPE One Config Simple Tool as a guideline for installing the components.
•Load heavier components first and load the rack from the bottom up.
•When coupling or baying racks, be sure to balance the weight load between or among the racks, placing the heaviest components at the
bottom. For example, if you have several UPS units and several servers, do not put all of the UPS units into one rack—distribute them evenly in
the bottom positions among the racks.
•Allow a minimum clearance of 762mm (30 in) at the back of the rack.
•Allow a minimum of 1219mm (48 in) clearance beyond the front of the rack to permit server installation and removal. This applies to both
individual rack installations as well as when aligning rack rows so that the front doors are facing each other. See figure 4.
•Use caution when pressing the component rail release latches and sliding a component into the rack. The side rails can pinch your fingers and
cables.

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•Components must be qualified prior to consideration for shipment within racks; this means the unit has been successfully tested under
common carrier simulations. HPE recommends the use of padded van carriers to avoid potential damage handling scenarios. The qualification
process is an ongoing effort to evaluate models as they are introduced. Prior to a successful qualification, a component should be shipped in its
individual shipping container; shipment of an unqualified system in a rack, or any system without the proper shock pallet, will void the warranty.
The listing of qualified components is maintained on an internal HPE database. If the reader is external to HP, contact your HPE representative
to arrange a review of the components intended for use.
Figure 4. Rack clearance (minimum recommended front rack space)
Warning
To reduce the risk of personal injury or damage to the equipment, be sure that the rack is stabilized as follows:
•The leveling feet are extended to the floor.
•The full weight of the rack rests on the leveling feet.
•The stabilizing feet are attached to the rack if it is a single-rack installation.
•The racks are coupled together in multiple-rack installations.
•Extend only one component at a time or the rack may become unstable.
Installation planning and considerations
As with any new infrastructure installation, consideration must be given to environmental, power, and compatibility with third party components
operating in the same operational infrastructure.
Environmental considerations
The data center must meet certain environmental conditions to ensure efficient rack implementation.
Thermal considerations
The racks should be configured and arranged in a data center to ensure proper airflow.
Configuring a rack for proper airflow
The increasing power of new high-performance processor technology requires increased cooling efficiency for rack-mounted servers. HPE G2
Rack Infrastructure maximizes available open space for efficient cooling. The power load maximum is dependent on the cooling method
deployed.

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Rack openings and perforations
Slots, openings, and perforations (up to 81% in HPE Advanced G2 rack front and rear doors) allow for maximum air flow through the rack,
promote reliable operation, and prevent overheating. They should never be blocked or covered. To provide proper front-to-back airflow, any
open “U” space in the front of a rack must be covered with an HPE filler or blanking panel.
HPE Accessories that support Airflow Management
The following HPE options can improve airflow through the rack:
•Airflow Optimization Kit—Seals air gaps inside the rack, in between bayed racks, and the clearance from the floor to the rack to prevent hot
and cold air from mixing, thus optimizing the temperature at which the chilled air enters the racked servers.
•Side Panels—The lightweight, locking side panels come in two sections for better handling
•Blanking Panels—These panels are designed to be installed without tools. The use of blanking panels is recommended to ensure proper
airflow.
•Roof mount Rack Fan Kits—The Rack Fan Kit mounted extractor fan kit enhances natural convection cooling by increasing airflow in the rack.
The Rack Roof Mount Fan Kit is not compatible with 14U racks.
Back-pressure airflow condition
Certain rack configurations, such as racks with extreme cable or server density, may cause a back-pressure situation to occur. When a back-
pressure situation occurs, heated exhaust air is forced around the side of the server components and back into the server inlet. Contact an
authorized service provider if you suspect a back-pressure situation is occurring in a rack.
Third-party thermal considerations
If a third-party rack is used, observe the following additional requirements to ensure adequate airflow and to prevent damage to the equipment:
•Front and rear doors: If the 42U server rack includes closing front and rear doors, allow 5350 sq. cm (830 sq. in) of hole evenly distributed
from top to bottom to permit adequate airflow (equivalent to the required 64 percent open area for ventilation). Be sure that the option
equipment does not impede airflow to the rack-mountable servers or increase the internal rack temperature beyond the specified maximum
rating.
•Side: The clearance between the installed rack component and the side panels of the rack must be a minimum of 7 cm (2.75 in)
Caution
Always use blanking or filler panels to fill all remaining empty front panel U-spaces in the rack. This arrangement facilitates proper airflow. Using
a rack without installing blanking panels to fill empty U-spaces results in improper cooling that can lead to thermal damage.
Caution
Be sure that the option equipment installed does not exceed the manufacturer’s maximum recommended ambient operating temperature.
Note
For additional information, refer to the Setup and Installation Guide or the documentation CD provided with the server, or to the server
documentation located in the Support section at hpe.com/info/proliant
Power considerations
Power is best managed within the rack by the use of a power distribution unit (PDU). Depending on the configuration, it may be necessary or
desirable to use multiple PDUs to connect all devices inside the rack.
Each PDU should be connected to a dedicated (unshared) branch circuit that is suitably rated for the continuous load of all the equipment
connected to it. The total power load for a PDU should not exceed 80 percent of the branch circuit rating.
If a PDU is not used, each piece of equipment within the rack should be connected to a dedicated branch circuit.

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Compatibility
HPE PDUs are guaranteed to fit with HPE Racks (See Figure 5). Developed and tested for use in HPE racks, these HPE PDUs eliminate typical
installation issues found with third-party PDUs. HPE PDU compatibility speeds-up deployment with tool-less mounting system supported by
PDU trays in the rear of HPE G2 racks. Support for mounting between the Radio Electronics Television Manufacturers Association (RETMA) rails
reduces space requirements (only supported in HPE racks).
Figure 5. HPE PDU compatibility
Grounding and earth leakage current
For proper operation and safety, rack components must be properly grounded in accordance with any local and regional building codes.
Furthermore, make sure that all power distribution devices used in the installation, such as branch wiring and receptacles, are listed or certified
grounding-type devices.
Because of the high ground-leakage currents associated with multiple servers connected to the same power source, a reliable grounded
(earthed) connection is essential. HPE recommends the use of a PDU that is either permanently wired to the building’s branch circuit or is
provided with a non-detachable cord that is wired to an industrial style plug. National Electrical Manufacturers Association (NEMA) locking-style
plugs or those complying with International Electrotechnical Commission (IEC) 60309 are considered suitable for this purpose. HPE does not
recommend using common power outlet strips for this equipment.
Observe the following limits when connecting the product to AC power distribution devices:
•For UPS products and PDUs that have permanently attached AC power cords or are directly wired to the building power, the total combined
leakage current should not exceed 5 percent of the total input current required for the connected products.
•For UPS products and PDUs that have detachable AC power cords, the total combined leakage current should not exceed 3.5 mA per PDU or
UPS.
HPE created the Power Advisor Tool to provide meaningful estimates of the power needs for HPE ProLiant, HyperScale, Synergy and Integrity
servers. The tool is used for estimating power use of the major components within a rack to determine power distribution, power redundancy,
and battery backup requirements for computer facilities. You can use the Power Advisor to:
•Accurately estimate power consumption of your HPE server and storage products
•Select the appropriate power supplies and other system components
•Configure and plan power usage at a system, rack, and multi-rack level
The HPE Power Advisor is available at: hpe.com/info/rackandpower.

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Equipment clearance and floor loading
A clearance of 1219mm (48 in) in front of a configured rack and 762mm (30 in) to the rear of a configured rack is recommended. All buildings
and raised computer room floors are engineered to provide a specific floor loading.
Warning
When configuring a solution, make sure that the floor loading specifications are followed. Failure to do so may result in physical injury or damage
to the equipment and the facility.
Figure 6 illustrates the footprint of an extended depth HPE Advanced Series Rack.
Figure 6. HPE Advanced Series Rack

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Rack and accessory footprints
When accessories, such as stabilizing kits are added to a particular rack, the footprint of the rack will extend into rack rear row and infringe upon
necessary clearances. See figure 7 and 8.
Figure 7. Footprint for a 600mm x 1075mm rack
Figure 8. Footprint for a 600mm x 1200mm rack with standard stabilizer kit with standard stabilizer kit

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Front door clearance
When racks are bayed together, the design of the front door limits the extent to which the rack door on the right may open. If there is insufficient
space to allow for the necessary work, open the door on the left side or remove the door from the rack-receiving service. There are slight
differences between the opening allowances of the Infrastructure Racks and HPE G2 Advanced Series Racks due to the different geometries and
construction of the doors.
Figure 9. Access with one door closed
Figure 10. Access with both doors open

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Qualified shipping
All HPE G2 Racks can be shipped in two standard shipping configurations, depending on the shipping environment and configuration. Shipment
of empty racks is typically done on a standard wooden pallet. Racks for shipping configured loads are on a shock pallet.
Ensure all of the following conditions are met when shipping a configured rack:
•All configured racks must be shipped on a shock pallet.
•Designated hardware must be configured in the rack.
•Shipping recommendations of this document must be followed.
•The configured rack must be shipped in an upright position.
Contact the HPE Rack Configuration Center for special shipment situations that require additional protection. Table 4 lists the shipping options
for HPE racks.
Table 4. Shipping options for HPE G2 Racks
STANDARD PALLET CTO SHOCK PALLET
22U x 600mm x
1075mm Yes Yes
36U x 600mm x 1075mm
Yes Yes
42U x 600mm x 1075mm
Yes Yes
42U x 600mm x 1200mm
Yes Yes
42U x 800mm x 1075mm
Yes Yes
42U x 800mm x 1200mm
Yes Yes
48U x 800mmx 1075mm
Yes Yes
Qualification of rack components for shipping
A component is a term used in this document to mean a physical device intended to be mounted in the rack. Examples of components include
but are not limited to:
•Slide or rail-mounted devices such as server or storage units
•Shelved devices such as keyboards and displays
•KVM Switches
•Side-mounted zero-U PDUs
•Rear-mount PDUs
•Fan kits that mount to the rack roof
•Rack light kit
Components must be qualified prior to consideration for shipment within racks; this means the component is successfully tested under common
carrier simulations. HPE recommends the use of padded van carriers with air ride suspensions to avoid some potential damage handling
scenarios. The qualification process is an ongoing effort to evaluate components as they are introduced.
Prior to a successful qualification, a component should be shipped in its individual shipping container; shipment of an unqualified system in a rack
or any system without the proper shock pallet will void the warranty.
Rack shipping enclosures
HPE Racks are designed to support high capacity weight loads that include the weight of the rack and all the equipment installed. All HPE racks
are tested to provide the following maximum weight loads:

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•Shipping—Rack including shipping packaging and materials.
•Static Load—Maximum loaded weight that a rack can support when stationary.
•Dynamic Load (rolling) —Maximum loaded weight a rack can support when moved (or rolled).
•Dynamic Load (Shipping/configured) —Maximum loaded weight a rack can support when shipped – this includes services such as HPE
Factory Express.
•Shipping – Max configured—Maximum loaded weight that a rack can support including rack and packaging.
HPE Racks are rated for Static Loads of up to 3000 lbs. If you require a rack that can be moved or shipped while fully loaded with equipment,
HPE Enterprise Series Racks can support a Dynamic Load (Rolling and configured) weight capacity of up to 3000 lbs. For complete information
on maximum weight loads, see the HPE Advanced Series Rack QuickSpecs at: hpe.com/h20195/v2/GetPDF.aspx/c04123187.pdf
Standard shipping pallet
Racks ship on a standard wooden pallet with plastic shrink wrap around the rack. Component installation must occur on the customer site. This
pallet and rack configuration is designed for shipping an empty rack. It does not support any component-shipping configuration.
Note
Wooden components of the pallets have been properly treated to comply with the pest-free certifications required by foreign countries.
CTO shock pallet
Racks ship on a CTO shock pallet. The shock pallet is designed to allow the rack to be shipped while fully loaded and configured with
components. The shock pallet enables the rack to handle the weight of the installed components during shipment without damaging the rack or
the equipment within. With each rack on a shock pallet, a pallet ramp is included to support the dismount of the rack from the pallet.
Note
Each of the packing and unpacking procedures takes less than half an hour and requires at least two people to complete.
Note
The Infrastructure Racks use different shock pallets based on their depth. These pallets have been designed to accommodate the increased
shipping load capabilities of the Infrastructure.
An HPE shock pallet spares kit is recommended and can be obtained when moving a data center or relocating preconfigured racks. Contact your
local HPE reseller for information on spares kits.
Shipping specifications
See rack QuickSpecs for shipping dimensions and capacities at HPE Advanced Series Rack QuickSpecs.
Note
Due to safety and stability factors, the 48U CTO rack requires unique handling and order management. Customer site surveys and additional
order lead time is standard. Special restrictions exist for air transport.
Packing materials and shipping requirements
Figure 11 shows the typical packaging material shipped with the empty rack upon arriving at the customer configuration site. Refer to the Bill of
Materials for shipment of the various racks, sorted by rack height.