Dell, the DELL logo, the DELL badge, PowerEdge, EqualLogic, PowerVault, PowerConnect, OpenManage,
KACE, and ReadyRails are trademarks of Dell, Inc. Citrix and XenServer are trademarks of Citrix Systems, Inc.
and/or one or more of its subsidiaries, and may be registered in the United States Patent and Trademark Office
and in other countries. Intel and Xeon are registered trademarks of Intel Corporation in the U.S. and other
countries. HP is a trademark of Hewlett-Packard Company. Broadcom is a registered trademark and
NetXtreme is a trademark of Broadcom Corporation and/or its affiliates in the United States, certain other
countries and/or the EU. Matrox is a registered trademark of Matrox Electronic Systems Ltd. Microsoft,
Windows, Windows Server, SQL Server, and BitLocker, and Hyper-V are either registered trademarks or
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trademark of PCI-SIG. Red Hat is a registered trademark of Red Hat, Inc. in the United States and other
countries. SUSE is a registered trademark of Novell, Inc., in the United States and other countries. Linux is a
registered trademark of Linus Torvalds. QLogic is a registered trademark of QLogic Corporation. VMware,
vSphere, vCenter, ESX, and ESXi are registered trademarks or trademarks of VMware, Inc. in the United States
and/or other jurisdictions. Other trademarks and trade names may be used in this document to refer to either
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©Copyright 2012 Dell Inc. All rights reserved. Reproduction or translation of any part of this work beyond that
permitted by U.S. copyright laws without the written permission of Dell Inc. is unlawful and strictly forbidden.
February 2012 | Rev 1.0
ii
PowerEdge R720 and R720xd Technical Guide
Table of contents
1 System overview ................................................................................................................................................................. 6
Introduction ........................................................................................................................................................................ 6
New technologies .............................................................................................................................................................. 7
2 System features .................................................................................................................................................................. 8
Specifications ..................................................................................................................................................................... 8
Comparison of PowerEdge systems ............................................................................................................................ 10
3 Chassis views and features .............................................................................................................................................. 11
Chassis views ..................................................................................................................................................................... 11
Chassis features ................................................................................................................................................................14
4 Processors ..........................................................................................................................................................................18
Processor features ............................................................................................................................................................18
Supported processors ......................................................................................................................................................19
GPU support ......................................................................................................................................................................19
Chipset ............................................................................................................................................................................... 20
5 Memory ............................................................................................................................................................................... 21
Supported memory .......................................................................................................................................................... 21
Memory configurations .................................................................................................................................................. 22
Memory speed ................................................................................................................................................................. 23
Memory RAS features...................................................................................................................................................... 24
6 Storage ............................................................................................................................................................................... 25
Internal storage ................................................................................................................................................................ 25
External storage ............................................................................................................................................................... 27
Storage controllers .......................................................................................................................................................... 27
Optical drives .................................................................................................................................................................... 29
Tape drives ........................................................................................................................................................................ 29
7 Networking and PCIe ...................................................................................................................................................... 30
Select Network Adapters ................................................................................................................................................ 30
PCIe expansion ................................................................................................................................................................ 32
8 Power, thermal, and acoustics ...................................................................................................................................... 34
Power consumption and energy efficiency ................................................................................................................ 34
Power supply units .......................................................................................................................................................... 35
Thermal and acoustics.................................................................................................................................................... 36
9 Rack rails and cable management ................................................................................................................................ 39
Sliding and static rail systems ........................................................................................................................................ 39
Cable management arm..................................................................................................................................................41
10 Operating systems and virtualization ........................................................................................................................... 42
Supported operating systems........................................................................................................................................ 42
Supported virtualization ................................................................................................................................................. 43
11 Dell OpenManage systems management .................................................................................................................... 44
Systems management solutions ................................................................................................................................... 44
OpenManage systems management ........................................................................................................................... 45
Dell server management operations ............................................................................................................................ 49
Appendix A.
Additional specifications .......................................................................................................................... 52
Chassis dimensions ......................................................................................................................................................... 52
Chassis weight.................................................................................................................................................................. 52
Power supply specifications .......................................................................................................................................... 53
Environmental specifications ........................................................................................................................................ 53
Video specifications ........................................................................................................................................................ 54
Rack rail specifications ................................................................................................................................................... 55
USB peripherals ................................................................................................................................................................ 55
iii
PowerEdge R720 and R720xd Technical Guide
Appendix B.
Standards compliance ............................................................................................................................. 56
Appendix C.
Additional resources................................................................................................................................. 57
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Table 12.
Table 13.
Table 14.
Table 15.
Table 16.
Table 17.
Table 18.
Table 19.
Table 20.
Table 21.
Table 22.
Table 23.
Table 24.
Table 25.
Table 26.
Table 27.
Table 28.
Table 29.
Table 30.
Table 31.
Table 32.
Table 33.
Table 34.
Table 35.
Table 36.
New technologies ................................................................................................................................................. 7
Technical specifications ...................................................................................................................................... 8
Comparison of PowerEdge R710, R720, and R720xd ................................................................................. 10
Chassis features ...................................................................................................................................................14
Security features ..................................................................................................................................................16
Supported processors ........................................................................................................................................19
Memory technologies supported ..................................................................................................................... 21
DIMMs supported ............................................................................................................................................... 22
Memory speed capabilities ............................................................................................................................... 23
Memory RAS features ........................................................................................................................................ 24
Chassis options ................................................................................................................................................... 25
Supported hard drives ....................................................................................................................................... 26
Supported external storage device types....................................................................................................... 27
RAID controllers ................................................................................................................................................. 28
Supported Select Network Adapter options and features ........................................................................... 31
PCIe expansion slots .......................................................................................................................................... 32
Supported NICs and HBAs ................................................................................................................................ 32
Supported PCIe expansion cards .................................................................................................................... 33
Power tools and technologies ......................................................................................................................... 34
Power supply efficiency .................................................................................................................................... 36
R720 acoustical performance (2.5-inch chassis) ......................................................................................... 38
R720xd acoustical performance (2.5-inch chassis) ..................................................................................... 38
Supported rack rail system ............................................................................................................................... 40
Primary operating system support .................................................................................................................. 42
Virtual guest operating system support ......................................................................................................... 43
Virtualization support ........................................................................................................................................ 43
iDRAC7 with Lifecycle Controller functions and benefits ........................................................................... 45
Feature comparison for iDRAC7 Express and Enterprise ............................................................................ 46
One-to-one and one-to-many operations .................................................................................................. 50
Chassis weight .................................................................................................................................................... 52
Power supply specifications ............................................................................................................................. 53
Environmental specifications ........................................................................................................................... 53
Supported video modes .................................................................................................................................... 54
Rail adjustability ranges ..................................................................................................................................... 55
Industry standard documents .......................................................................................................................... 56
Additional resources .......................................................................................................................................... 57
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
R720 front view (2.5” chassis with bezel) ........................................................................................................ 11
R720 front view (2.5” chassis without bezel) .................................................................................................. 11
R720xd front view (with bezel) ......................................................................................................................... 12
R720xd front view (2.5-inch chassis without bezel) ..................................................................................... 12
R720 back view .................................................................................................................................................... 12
R720xd back view................................................................................................................................................ 13
R720 internal chassis view ................................................................................................................................. 13
R720xd internal chassis view .............................................................................................................................14
R720 LCD control panel..................................................................................................................................... 15
R720xd LED panel ............................................................................................................................................... 15
QRL code inside chassis.....................................................................................................................................16
Rack network daughter card (NDC) ................................................................................................................ 30
iv
PowerEdge R720 and R720xd Technical Guide
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Figure 17.
Figure 18.
750W power supply unit (R720) ...................................................................................................................... 36
Sliding rails with optional CMA ........................................................................................................................ 39
Static rails ............................................................................................................................................................. 40
Dell systems management solutions .............................................................................................................. 44
Systems management server lifecycle ........................................................................................................... 50
Chassis dimensions ............................................................................................................................................ 52
.
v
PowerEdge R720 and R720xd Technical Guide
The Dell™ PowerEdge™ R720 and R720xd are Dell’s latest 2-socket, 2U rack servers that are
designed to run complex workloads using highly scalable memory, I/O capacity, and flexible
network options. Both systems feature the Intel® Xeon® processor E5-2600 product family,
up to 24 DIMMS, PCI Express® (PCIe) 3.0 enabled expansion slots, and a choice of NIC technologies.
The PowerEdge R720 is a general-purpose platform with highly expandable memory (up to 768GB)
and impressive I/O capabilities to match. The R720 can readily handle very demanding workloads,
such as data warehouses, e-commerce, virtual desktop infrastructure (VDI), databases, and high
performance computing (HPC) as a data node.
In addition to the R720’s capabilities, the R720xd offers extraordinary storage capacity, making it well
suited for data-intensive applications that require storage and I/O performance, like medical imaging
and email servers.
Keep pace with the explosion of data in the virtual age with the flexible I/O and storage capabilities
of the R720 and R720xd. The R720 supports up to sixteen internal hard drives to increase your
capacity, while optional hot-plug, front-access Express Flash PCIe solid-state drives (up to four)
enable performance-enhancing, in-box storage tiering.
The PowerEdge R720xd allows you to quickly access and process vast amounts of data with up to
twenty-six internal hot-plug hard disks. The R720xd is a great solution for any mid-size or large
business that requires scalability in storage capacity.
The R720 and R720xd allow you to tailor your network throughput to match your application needs,
enabling added I/O performance. Select Network Adapters, Dell’s flexible NIC technology, let you
choose the right network fabric without using up a valuable PCI slot. You can pick speed,
technology, vendor and other options, like switch independent partitioning (SIP) that lets you share
and manage bandwidth on 10GbE connections.
Maximize your data center’s application capacity by expanding your virtual environment using the
large memory footprint of the R720 and R720xd. Choose an industry-leading hypervisor and take
advantage of our system management capability to manage both physical and virtual assets.
Redundant failsafe hypervisors can also help maximize your virtual machines’ uptime. Dell’s Virtual
Integrated System™ (VIS) solution lets you enable complex virtualization environments in just a few
mouse clicks.
The Dell OpenManage™ systems management portfolio includes the Integrated Dell Remote Access
Controller (iDRAC) with Lifecycle Controller. Dell embedded server management features help IT
Administrators manage Dell servers in physical, virtual, local and remote environments, operating
in-band or out-of-band, with or without a systems management software agent. OpenManage also
integrates with and connects to third-party systems management solutions so you can maintain
your single point of control and capitalize on your existing investment. OpenManage solutions
6
PowerEdge R720 and R720xd Technical Guide
simplify the lifecycle of deploying, updating, monitoring, and maintaining your Dell PowerEdge
servers.
New technologies featured on the PowerEdge R720 and R720xd systems are detailed in Table 1.
New technologies
Detailed descriptions
Intel Xeon processor
E5-2600 product family
This new family of Intel processors has embedded PCIe lanes for improved I/O
performance. See the Processors section for details.
Intel C600 series chipset
The Intel Platform Controller Hub (PCH) chip is used on the R720 and R720xd.
1600 MT/s DDR3
memory
Certain models of E5-2600 series processors support 1600 MT/s memory. The
R720 and R720xd support two DIMMs per channel at 1600 MT/s with these
processors. See the Memory section for details.
LRDIMM
This new memory option, load reduced DIMM (LRDIMM), is designed with a buffer
chip (or chips) to replace the register to help minimize loading. LRDIMMs can
increase overall server system memory capacity and speed. See the Memory
section for more information.
Flexible LOM
Dell’s Select Network Adapter options allow you to customize your LAN port
combinations from your choice of controller vendors. See the Networking and
PCIe section for details.
Next generation PERC
options
The R720 and R720xd support new PERC controller cards with improved
functionality and faster performance. See the Storage section for details.
PERC S110 software
RAID solution
This new software RAID solution supports RAID 0, 1, 5 and 10 and supports a
maximum of four hot-plug SATA HDDs or SSDs. See the Storage section for details.
Express Flash drives
1
Dell Express Flash PCIe solid-state drives provide fast performance without
requiring processor resources or capturing DRAM. The R720 supports up to four
Express Flash drives. The R720xd does not support Express Flash drives.
iDRAC7 with Lifecycle
Controller
The new embedded system management solution for Dell servers features
hardware and firmware inventory and alerting, in-depth memory alerting, faster
performance, a dedicated gigabit port and many more features. See the Dell
OpenManage systems management section for details.
Internal GPU support
The R720 supports internal graphics processing units (GPUs) for extreme
computing power to solve high performance computing (HPC) needs. The R720xd
does not support internal GPUs. See the Processors section for details.
Advanced power
management
The R720 and R720xd support advanced power monitoring and power capping
tools that can help manage power consumption.
DC power supply
1
A new 1100W DC power supply option will be available for the R720 and R720xd.
Failsafe hypervisors
The internal dual SD module enables Dell's unique Failsafe Virtualization
architecture, ensuring uptime by providing failover capability for embedded
®
hypervisors, such as VMware ESXi™.
Fresh air cooling
Dell has tested and validated an integrated data center solution that enables you to
operate at higher temperatures or even chiller-less. See the Power, thermal, and
acoustics section for details.
1
Available Q2 2012
7
PowerEdge R720 and R720xd Technical Guide
Compared to the previous generation of Dell™ PowerEdge™ servers, the R720 and R720xd have
more drive bay options, more PCIe slots, a larger memory footprint, flexible I/O, Express Flash PCIe
solid-state drives (available Q2 2012), advanced system management, and hot-plug redundant
cooling. The R720 also supports optional dual internal RAID controllers and up to four optional
internal GPUs.
Table 2 lists the technical specifications for the PowerEdge R720 and R720xd systems. For the latest
information on supported features, visit Dell.com.
Feature
Specification
Form factor
2U rack
Processors
Intel Xeon processor E5-2600 product family
Processor sockets
2
Front side bus (FSB)
2 Intel QuickPath Interconnect (QPI) links; 6.4 GT/s; 7.2 GT/s; 8.0 GT/s
Cache
2.5MB per core; core options: 2, 4, 6, 8
Chipset
Intel C600
Memory
1
®
®
Up to 768GB (24 DIMM slots): 2GB/4GB/8GB/16GB/32GB DDR3 up to 1600MT/s
PCIe slots
R720:
7 PCIe slots:
One x16 full-length, full-height
Three x8 full-length, full-height
Three x8 half-length, half-height
RAID controller
Internal controllers:
PERC S110 (software RAID; R720 only)
PERC H310
PERC H710
PERC H710P
R720xd:
6 PCIe slots:
Two x16 full-length, full-height
One x8 full-length, full-height
Three x8 half-length, half-height
External HBAs (RAID):
PERC H810
External HBAs (non-RAID):
6Gbps SAS HBA
R720 drive bay options:
 Up to 16 x 2.5“
 Up to 8 x 2.5” + 8 x 2.5” (with dual RAID controllers)
 Up to 8 x 2.5”
2
 Up to 8 x 2.5” + 4 x 2.5” Express Flash or up to 8 x 3.5”
Hard drives
(hot-plug)
R720xd drive bay options:
 Up to 24 x 2.5” (front) + 2 x 2.5” (back) or
 Up to 12 x 3.5” (front) + 2 x 2.5” (back)
Hard drive options:
 2.5” SAS SSD, SATA SSD, SAS (15K, 10K), nearline SAS (7.2K), SATA (7.2K)
2
 2.5” Express Flash PCIe SSD (R720 only)
 3.5” SAS (15K), nearline SAS (7.2K), SATA (7.2K)
Self-encrypting drives (SEDs) available
8
PowerEdge R720 and R720xd Technical Guide
Feature
Specification
Integrated NIC
Select Network Adapter options:
®
Broadcom Quad Port 1GbE BASE-T (no TOE or iSCSI offload)
Intel Quad Port 1GbE BASE-T (no TOE or iSCSI offload)
Intel Dual Port 10GbE BASE-T with 2 x 1GbE (FCoE capability enabled on the
10GbE ports)
Broadcom Dual Port 10GbE SFP+ with 2 x 1GbE (TOE and iSCSI offload available on
10GbE ports)
Power supply
Auto-ranging, Platinum efficiency 495W, 750W, 1100W AC or
2
Gold efficiency 1100W DC
Availability
High-efficiency, hot-plug, redundant power supplies; hot-plug drive bays; TPM; dual
internal SD support; hot-plug redundant fan; optional bezel; luggage-tag; ECC
®
memory, interactive LCD screen; extended thermal support; ENERGY STAR
compliant; switch independent partitioning
Remote management
iDRAC7 with Lifecycle Controller
iDRAC7 Express (default), iDRAC7 Enterprise (upgrade option)
8GB vFlash media (upgrade option), 16GB vFlash media (upgrade option)
Systems management
Dell OpenManage™ Essentials and Dell Management Console
Dell OpenManage Power Center
OpenManage Connections:
®
 OpenManage Integration Suite for Microsoft System Center
®
 Dell Management Plug-in for VMware vCenter™
®
®
 OpenManage Connections for HP Operations Manager, IBM Tivoli Netcool , and
CA Network and Systems Management
IPMI 2.0 compliant
Rack support
ReadyRails™ sliding rails with optional cable management arm for 4-post racks
®
Microsoft Windows Server 2008 R2 SP1, x64 (includes Hyper-V™ v2)
®
Microsoft Windows HPC Server 2008
Microsoft Windows Small Business Server 2011
®
®
SUSE Linux Enterprise Server
®
Red Hat Enterprise Linux
Operating systems
Optional embedded hypervisors:
®
Citrix XenServer™
VMware vSphere™
For more information on the specific versions and additions, visit
Dell.com/OSsupport.
1
GB means 1 billion bytes and TB means 1 trillion bytes; actual capacity varies with preloaded material and operating
environment and will be less
2
Available Q2 2012
9
PowerEdge R720 and R720xd Technical Guide
The PowerEdge R720 and R720xd are replacements for the predecessor R710 system, three systems
which are compared in Table 3. For the latest information on supported features, visit Dell.com.
Feature
PowerEdge R710
PowerEdge R720 (new)
PowerEdge R720xd (new)
Chassis
2U rack
2U rack
2U rack
Processors
Intel Xeon processors 5500 Intel Xeon processor E5-2600 Intel Xeon processor E5-2600
and 5600 series
product family
product family
Front Side Bus (FSB)
Intel QuickPath Interconnect
Intel QuickPath Interconnect
Intel QuickPath Interconnect
18 x DDR3 RDIMM and
UDIMM
Up to 288GB
24 x DDR3 RDIMM, UDIMM,
and LRDIMM
Up to 768GB
24 x DDR3 RDIMM, UDIMM,
and LRDIMM
Up to 768GB
Hard drive bays
(hot plug)
Up to 8 x 2.5” or 6 x 3.5”
Up to 16 x 2.5“ or 8 x 3.5”
Up to 24 x 2.5“+ 2 x 2.5” or 12 x
3.5” + 2 x 2.5”
RAID controller
PERC 6/i, SAS 6/iR, PERC 6/E,
H200, H700, H800
PERC S110, H310, H710,
H710P, H810 (external);
supports multiple (2) internal
RAID controllers
PERC H310, H710, H710P,
H810 (external)
PCI slots
4 PCIe 2.0
7 PCIe 3.0
6 PCIe 3.0
Not supported
Up to 4
Not supported
Onboard NICs
4 x 1GbE with optional TOE
Select Network Adapter:
minimum configuration of
4 x 1Gb, 10GbE (optional)
Select Network Adapter:
minimum configuration of
4 x 1Gb, 10GbE (optional)
Power supplies
Hot-plug, redundant power
supply units: 570W or 870W
Hot-plug, redundant power
supply units: 495W, 750W,
1
1100W, 1100W DC
Hot-plug, redundant power
supply units: 495W, 750W,
2
1100W, or 1100W DC
Power efficiency
Gold
Platinum
Platinum
Systems
management
Dell OpenManage™
Dell Management Console
Lifecycle Controller 1.x
Dell OpenManage Essentials
Dell Management Console
Lifecycle Controller 2.x
OpenManage Power Center
Dell OpenManage Essentials
Dell Management Console
Lifecycle Controller 2.x
OpenManage Power Center
Remote
management
iDRAC6 (Express or Enterprise) iDRAC7 (Express or Enterprise) iDRAC7 (Express or Enterprise)
with Lifecycle Controller 1.x
with Lifecycle Controller 2.x
with Lifecycle Controller 2.x
Internal GPU
Not supported
2 x 300W (double wide) or
4 x 150W (single wide)
Not supported
Availability
Hot-plug drives,
redundant cooling,
hot-plug, redundant power
supply units,
internal SD module
Hot-plug drives,
hot-plug redundant cooling,
hot-plug redundant power
supply units,
internal dual SD module
Hot-plug drives,
hot-plug redundant cooling,
hot-plug redundant power
supply units,
internal dual SD module
®
Memory
1
Express Flash drives
2
®
1
GB means 1 billion bytes and TB means 1 trillion bytes; actual capacity varies with preloaded material and operating
environment and will be less
2
Available Q2 2012
10
PowerEdge R720 and R720xd Technical Guide
The Dell™ PowerEdge™ R720 and R720xd implement a new chassis design which supports an
increased number of DIMMs, PCIe slots, and hard drives, relative to their predecessor servers. The
following sections provide external and internal views of the systems and describe the chassis
features.
For information on features and descriptions for these systems, see the Dell PowerEdge R720 and
R720xd Owner's Manual on Support.Dell.com/Manuals.
The R720 and R720xd are available in several chassis options with varying numbers of drive bays.
Note that a chassis cannot be reconfigured or upgraded after point of purchase.
The R720 supports up to sixteen 2.5” or up to eight 3.5” front-accessible, hot-plug hard drives that
are secured by a removable front bezel. Other front-panel features include an interactive LCD
control panel, two USB connectors, a video connector, and a vFlash media card slot.
11
PowerEdge R720 and R720xd Technical Guide
The R720xd supports up to twenty-four 2.5” or up to twelve 3.5” front-accessible, hot-plug hard
drives that are secured by a removable front bezel. Other front-panel features include an LED
control panel, a USB connector, and a video connector.
The R720 back panel includes features such as redundant hot-plug power supply units (PSUs), four
Ethernet connectors, PCI expansion slots, and many other features that are described in the rest of
this guide.
12
PowerEdge R720 and R720xd Technical Guide
In addition to the R720 back-panel features, the R720xd also includes two optional 2.5-inch
hot-plug drives in the back of the system.
The chassis design of the R720 and R720xd is optimized for easy access to components and for
airflow for effective and efficient cooling. The R720 and R720xd support up to 24 DIMMs, 2
processors, hot-plug redundant fans, and many other components and features that are described
in this guide.
13
PowerEdge R720 and R720xd Technical Guide
For additional system views, see the Dell PowerEdge R720 and R720xd Systems Owner’s Manual on
Support.Dell.com/Manuals.
Table 4 lists the chassis features for the R720 and R720xd systems. For additional information on
these features, see the Dell PowerEdge R720 and R720xd Systems Owner’s Manual on
Support.Dell.com/Manuals.
Feature
Description
Power button and indicator
ACPI-complaint power button with an integrated green power LED
Recessed non-maskable interrupt (NMI) button used to troubleshoot
software and device driver errors; use only if directed to do so by
qualified support personnel or by the operating system's documentation
Buttons on the back and front of a system to help identify the unit in a
data center environment
NMI button
System identification button
Hard drive activity LEDs
Indicate the status and activity of the hard drives
USB connectors
Two (R720) or one (R720xd) front, two back, and one internal USB
connector
vFlash media reader
Supports one vFlash media card (the R720 slot is located in the front of
the system and the R720x slot is located in the back); functionality is
activated only when iDRAC Enterprise is enabled
Video connector
Connects a monitor to the system
LCD control panel
Provides user access to buttons, display, and I/O interfaces (R720 only)
LED panel
Indicates the status of system conditions (R720xd only)
Hard drives
Front-accessible, hot-plug hard drives plus two optional
back-accessible hot-plug hard drives (R720xd only)
14
PowerEdge R720 and R720xd Technical Guide
Feature
Description
Optical drive (optional)
The R720 supports one optional slimline SATA DVD-ROM drive or
DVD+/-RW drive; R720xd does not support an internal optical drive
System identification panel
Serial connector
iDRAC7 Enterprise port
Security cable slot
Slide-out label panel for system information
Connects a serial device to the system and for console redirect
Dedicated management port for optional iDRAC7 Enterprise
Connects cable lock to system
PCIe expansion card slots
The R720 supports up to seven PCIe expansion cards; R720xd supports
up to six PCIe expansion cards
Ethernet connectors
Power supply units
Power supply indicators
NIC indicators
Quick Resource Locator (QRL)
Choice of network connectors through Select Network Adapter family
Up to two back-accessible, hot-plug power supplies
Indicate whether system has power
Indicate network activity and status
This code on the chassis can be scanned by a phone application to
access information about the server
The R720 system control panel is located on the front of the chassis to provide user access to
buttons, display, and I/O interfaces. For more information on the R720 LCD control panel, see the
Dell PowerEdge R720 and R720xd Owner's Manual on Support.Dell.com/Manuals.
The R720xd LED panel is located on the front of the chassis to indicate the status of system
conditions. For more information on the R720xd LED panel, see the Dell PowerEdge R720 and
R720xd Systems Owner's Manual on Support.Dell.com/Manuals.
15
PowerEdge R720 and R720xd Technical Guide
A useful feature included with Dell™ PowerEdge 12th generation servers is the Quick Resource
Locator (QRL)—a model-specific Quick Response (QR) code that is located on the server (shown in
Figure 11). Just use your phone to access the Dell QRL application to learn more about the server.
This QRL code allows you to:

View step-by-step videos, including overviews of system internals and externals, as well as
detailed, concise, task-oriented videos and installation wizards

Locate reference materials, including searchable owner’s manual content, LCD diagnostics, and
an electrical overview

Look up your service tag so you can quickly gain access to your specific hardware configuration
info and warranty information

Contact Dell directly (by link) to get in touch with technical support and sales teams and provide
feedback to Dell
These codes provide an easy way to retrieve the critical support information you need when you
need it, making you more efficient and effective in managing your hardware.
The latest generation of PowerEdge servers has the features listed in Table 5 to help ensure the
security of your data center.
16
Security feature
Description
Cover latch
A tooled latch is integrated in the top cover to secure it to the rack chassis.
Front bezel
An optional metal bezel is mounted to the chassis front to provide the Dell ID.
A lock on the bezel is used to protect un-authorized access to hard drives.
System status is viewable on the LCD or LED panel when the bezel is installed.
PowerEdge R720 and R720xd Technical Guide
17
Security feature
Description
TPM
The Trusted Platform Module (TPM) is used to generate/store keys,
protect/authenticate passwords, and create/store digital certificates. It also
supports the Intel Xeon TXT functionality. TPM can also be used to enable the
®
BitLocker™ hard drive encryption feature in Windows Server 2008. TPM 1.2 is
supported. No TPM version is available for China or Russia.
Power-off security
BIOS has the ability to disable the power button function.
Intrusion alert
An internal switch is used to detect chassis intrusion.
Secure mode
BIOS has the ability to enter a secure boot mode through system setup. This
mode includes the option to lock out the power and NMI switches on the
control panel or set up a system password.
PowerEdge R720 and R720xd Technical Guide
The Dell™ PowerEdge™ R720 and R720xd feature the Intel® Xeon® processor E5-2600 product
family, offering an ideal combination of performance, power efficiency, and cost. These processors
provide high performance no matter what your constraint is—floor space, power, or budget—and
on workloads that range from the most complicated scientific exploration to crucial web-serving
and infrastructure applications. In addition to providing raw performance gains, improved I/O is also
made possible with Intel Integrated I/O, which can reduce latency by adding more lanes and
doubling bandwidth. This helps to reduce network and storage bottlenecks, unleashing the
processor’s performance capabilities.
The new Intel Xeon processor E5-2600 product family not only adds new features, but also
improves upon many features of the predecessor Intel Xeon processor 5600 series, including:

Up to two additional cores and up to 8MB more last level cache

More memory—six additional DIMMs and support for up to 32GB DIMMs, which increases
memory capacity from 288GB (R710) to 768GB (R720/R720xd)

Intel Integrated I/O has support for up to 80 lanes of PCIe 3.0, which can reduce latency

Faster connections are provided throughout the system with support for DDR3 1600 MT/s
memory and 8.0 GT/s QPI

Intel Data Direct I/O (DDIO) allows I/O traffic to skip the main system memory and be directed
straight to the processor cache, which can provide a significant reduction in latency as well as
allowing memory to remain in a low-power state

Intel Advanced Vector Extensions offer up to double the floating point operations per clock
cycle by doubling the length of registers, which can be useful for addressing very complex
problems or dealing with large-number calculations, which are integral to many technical,
financial, and scientific computing problems

Intel Turbo Boost Technology 2.0 delivers up to double the boost than the
previous-generation turbo technology

Continued improvements to both Intel TXT and AES-NI help to better protect systems and data
For more information on the Intel® Xeon® processor E5-2600 product family, visit Intel.com.
18
PowerEdge R720 and R720xd Technical Guide
The R720 and R720xd support up to two processors with up to eight cores per processor. Table 6
lists the Intel Xeon processors supported by the PowerEdge R720 and R720xd. For the latest
information on supported processors, visit Dell.com.
Model
Speed
Cache
QPI
Cores
Turbo
TDP
E5-2690
1
2.9GHz
20M
8.0 GT/s
8
Yes
135W
E5-2680
2.7GHz
20M
8.0 GT/s
8
Yes
130W
E5-2670
2.6GHz
20M
8.0 GT/s
8
Yes
115W
E5-2667
2.9GHz
15M
8.0 GT/s
6
Yes
130W
E5-2665
2.4GHz
20M
8.0 GT/s
8
Yes
115W
E5-2660
2.2GHz
20M
8.0 GT/s
8
Yes
95W
E5-2650L
1.8GHz
20M
8.0 GT/s
8
Yes
70W
E5-2650
2.0GHz
20M
8.0 GT/s
8
Yes
95W
E5-2643
3.3GHz
10M
8.0 GT/s
4
Yes
130W
E5-2640
2.5GHz
15M
7.2 GT/s
6
Yes
95W
E5-2637
3.0GHz
5M
6.4 GT/s
2
Yes
80W
E5-2630
2.3GHz
15M
7.2 GT/s
6
Yes
95W
E5-2630L
2.0GHz
15M
7.2 GT/s
6
Yes
60W
E5-2620
2.0GHz
15M
7.2 GT/s
6
Yes
95W
E5-2609
2.4GHz
10M
6.4 GT/s
4
No
80W
E5-2603
1.8GHz
10M
6.4 GT/s
4
No
80W
1
R720 only; not supported on R720xd.
For information on processor installation and configuration, see the Dell PowerEdge R720 and
R720xd Owner’s Manual on Support.Dell.com/Manuals.
Graphics processing unit (GPU) technology is supported on the R720, which can provide
accelerated performance for a variety of applications, including virtual desktop infrastructure (VDI)
and high-performance computing (HPC) implementations.
The R720xd does not support internal or external GPUs.
The R720 can support two 300W, full-length, double-wide GPUs or up to four 150W, full-length,
single-wide GPUs. Each GPU can support up to 6GB of dedicated GDDR5 memory. Active-cooled
GPU cards are not supported. For a list of supported GPUs, see Table 18.
19
PowerEdge R720 and R720xd Technical Guide
The R720 can connect to the PowerEdge C410x through a host interface card (HIC) and an iPass
cable. Both the NVIDIA® and Dell x16 HIC require one x16 PCIe slot. Each HIC can support up to
four GPUs. The R720 can support up to four GPUs maximum. For a list of supported GPU HICs, see
Table 18.
Some operating systems have not been validated to support GPUs. See Table 24 and Table 25 for
more information on operating system support of GPUs.
The Intel C600 chipset is implemented on the PowerEdge R720 and R720xd. For more information,
visit Intel.com.
20
PowerEdge R720 and R720xd Technical Guide
More memory options are available than ever before with the Dell™ PowerEdge™ R720 and
R720xd—greater capacities, higher frequencies, and more flexibility. The R720 and R720xd support
up to 768GB of memory (24 DIMMs) and speeds up to 1600 MT/s, providing high performance in a
variety of applications. High memory density means there is no compromise when it comes to
virtualization.
Increase your uptime and reduce data loss, due to Dell’s focus on reliability, availability, and
serviceability (RAS) features. RAS aids in the rapid and accurate diagnosis of faults which require
service, increasing your memory reliability. System uptime is reinforced with RAS features like
memory mirroring, sparing, and many others.
In addition to supporting existing unbuffered DIMMs (UDIMMs) and registered DIMMs (RDIMMs), the
R720 and R720xd support load reduced DIMMs (LRDIMMs), which use a buffer to reduce memory
loading and provide greater density, allowing for the maximum platform memory capacity.
Table 7 lists the memory technologies supported by the R720 and R720xd.
21
Feature
UDIMM
RDIMM
LRDIMM
Register
No
Yes
Yes
Buffer
No
No
Yes
Frequencies
800, 1066, 1333, or
1600MT/s
800, 1066, 1333, or
1600MT/s
1066 or 1333MT/s
Ranks supported
1 or 2
1, 2, or 4
4
Capacity per DIMM
2 or 4GB
2, 4, 8, 16, or 32GB
32GB
Maximum DIMMS per
channel
2
3
3
DRAM technology
x8
x4 or x8
x4
Temperature sensor
Yes
Yes
Yes
ECC
Yes
Yes
Yes
SDDC
Yes (with advanced
ECC mode)
Yes
Yes
Address parity
Yes
Yes
Yes
PowerEdge R720 and R720xd Technical Guide
Table 8 lists the DIMMs supported on the R720 and R720xd. For the latest information on supported
memory, visit Dell.com.
Only
Capacity
(GB)
Speed
(MT/s)
Type
Ranks per
DIMM
Data
width
SDDC support
Voltage
2
1333
RDIMM
1
x8
Advanced ECC
1.35
2
1333
UDIMM
1
x8
Advanced ECC
1.35
2
1600
RDIMM
1
x8
Advanced ECC
1.5
4
1333
RDIMM
2
x8
Advanced ECC
1.35
4
1333
RDIMM
1
x4
All modes
1.35
4
1333
UDIMM
2
x8
Advanced ECC
1.35
4
1600
RDIMM
2
x8
Advanced ECC
1.5
8
1333
RDIMM
2
x4
All modes
1.35
8
1600
RDIMM
2
x4
All modes
1.5
16
1333
RDIMM
2
x4
All modes
1.35
16
1600
RDIMM
2
x4
All modes
1.5
32
1333
LRDIMM
4
x4
All modes
1.35
32
1333
RDIMM
4
x4
All modes
1.35
Flexible memory configurations are supported on the R720 and R720xd, ranging from capacities of
2 GB (minimum) to 768 GB (maximum). The R720 and R720xd support up to 12 DIMMs per
processor (up to 24 DIMMs in a dual-processor configuration). Each server has four memory
channels per processor, with each channel supporting up to three DIMMs.
Both systems support a flexible memory configuration, according to the following basic rules:

Speed: If DIMMs of different speeds are mixed, all channels across all processors operate at the
slowest DIMM’s common frequency.

DIMM type: Only one type of DIMM is allowed per system: UDIMM, RDIMM, or LRDIMM. These
types cannot be mixed.
The following additional memory-population guidelines apply to the R720 and R720xd:



Up to two quad-rank (QR) DIMMs and up to three dual-rank (DR) or single-rank (SR) DIMMs may
be populated per channel.
DIMMs must be installed in each channel, starting with the DIMM farthest from the processor.
DIMMs should be installed with largest rank count to smallest. For example, if DR DIMMS are
mixed with SR DIMMs, DR DIMMS should be placed in the lowest DIMM slots, followed by the SR
DIMMs.
For more information on memory configuration and population, see the Dell PowerEdge R720 and
R720xd Systems Owner’s Manual on Support.Dell.com/Manuals.
22
PowerEdge R720 and R720xd Technical Guide
Memory speeds of 1600 MT/s, 1333 MT/s, 1066 MT/s, and 800 MT/s are supported on the R720 and
R720xd, depending on the DIMM types installed and the configuration. All memory on all processors
and channels run at the same speed and voltage. By default, the systems run at the highest speed
for the channel with the lowest DIMM voltage and speed. The operating speed of the memory is
also determined by the maximum speed supported by the processor, the speed settings in the BIOS,
and the operating voltage of the system.
Table 9 lists the memory configuration and performance details for the R720 and R720xd, based on
the population of the number and type of DIMMs per memory channel.
DIMM
type
UDIMM
RDIMM
DIMM 0
DIMM 1
DIMM 2
Speed (MT/s)
800
1066
1333
SR
1
∞
∞
∞
DR
1
∞
∞
∞
1600
SR
SR
2
∞
∞
∞
SR
DR
2
∞
∞
∞
DR
DR
2
∞
∞
∞
SR
1
∞
∞
∞
∞
DR
1
∞
∞
∞
∞
QR
1
∞
∞
∞
SR
SR
2
∞
∞
∞
SR
DR
2
∞
∞
∞
DR
DR
2
∞
∞
∞
QR
SR
2
∞
QR
DR
2
∞
QR
QR
2
∞
SR
SR
SR
3
∞
∞
SR
SR
DR
3
∞
∞
SR
DR
DR
3
∞
∞
DR
DR
DR
3
∞
∞
QR
23
# of
DIMMs
QR
QR
QR
QR
QR
1
∞
∞
2
∞
∞
3
∞
PowerEdge R720 and R720xd Technical Guide
∞
Reliability, availability, and serviceability (RAS) features help keep the system online and operational
without significant impact to performance, and can decrease data loss and crashing due to errors.
RAS aids in rapid, accurate diagnosis of faults which require service. Table 10 describes the memory
RAS features supported on the R720 and R720xd.
Feature
Description
Increased memory reliability can be a result from this selectable platform profile
that adjusts parameters to reduce faults regarding refresh rates, speed,
temperature and voltage
Demand scrubbing is the ability to write corrected data back to the memory once
a correctable error is detected on a read transaction. Patrol scrubbing proactively
searches the system memory, repairing correctable errors.
Recovery from Single DRAM Device Failure (SDDC) provides error checking and
correction that protects against any single memory chip failure as well as multi-bit
errors from any portion of a single memory chip.
This feature provides the ability to identify a specific failing DIMM channel pair,
thereby enabling the user to replace only the failed DIMM pair.
Memory mirroring is a method of keeping a duplicate (secondary or mirrored)
copy of the contents of memory as a redundant backup for use if the primary
memory fails. The mirrored copy of the memory is stored in memory of the same
processor socket.
This feature provides the ability to detect transient errors on the address lines of
the DDR channel.
Memory sparing allocates one rank per channel as a spare. If excessive
correctable errors occur in a rank or channel, they are moved to the spare area
while the operating system is running to prevent the errors from causing an
uncorrectable failure.
This feature helps to optimize power/performance and can also be used to
prevent DIMMs from overheating.
For information on memory mirroring and sparing configurations, see the Dell PowerEdge R720 and
R720xd Owner’s Manual on Support.Dell.com/Manuals. Memory RAID is not supported.
24
PowerEdge R720 and R720xd Technical Guide
The Dell™ PowerEdge™ R720 and R720xd provide storage expandability that allows you to adapt to
your workload and operational demands. With comprehensive storage options, the R720 and
R720xd offer various drive types, internal and external storage controllers, and different chassis and
backplanes for varied numbers of drives.
Due to their massive internal storage capacities, the R720 and R720xd are optimized for a variety of
implementations, including virtual desktop infrastructure (VDI) environments and collaboration
solutions. The R720 supports up to 16 and the R720xd supports up to 26 internal 2.5-inch drives.
Features such as Express Flash PCIe solid-state drives (available Q2 2012) and CacheCade™ provide
vastly accelerated performance over previous technologies. Dell Express Flash drives use PCIe lanes
to connect directly to the processor and chipset and are easily accessible by hot-plug drive bay.
CacheCade uses Dell PERC storage controllers to accelerate performance over hard drives or
traditional solid-state drives.
The R720 and R720xd are available in several hot-plug, hard-drive chassis options, as detailed in
Table 11. Note that the chassis option must be selected at the point of purchase and cannot be
changed or upgraded later.
PowerEdge server
Chassis option
16 x 2.5” drives
8 x 2.5” + 8 x 2.5” drives
(with dual RAID controllers)
8 x 2.5” drives
1
8 x 2.5” + 4 x Express Flash drives
8 x 3.5” drives
24 x 2.5” drives (front) +
2
2 x 2.5” drives (back)
12 x 3.5” drives (front) +
2
2 x 2.5” drives (back)
1
Available Q2 2012
Back-accessible 2.5” drives are optional
2
25
PowerEdge R720 and R720xd Technical Guide
Table 12 lists the internal hard drives supported by the R720 and R720xd. For the latest information
on supported hard drives, visit Dell.com.
Form
factor
3.5”
2.5”
Type
Speed
(rpm)
Capacities
SATA (3Gb)
7.2K
250GB, 500GB, 1TB, 2TB
Nearline SAS (6Gb)
7.2K
1TB, 2TB, 3TB
SAS (6Gb)
15K
300GB, 600GB
SATA (3Gb)
7.2K
250GB, 500GB, 1TB
Nearline SAS (6Gb)
7.2K
500GB, 1TB, 1TB (SED)
SAS (6Gb)
10K
300GB, 600GB, 900GB, 900GB
(SED)
SAS (6Gb)
15K
146GB, 300GB, 300GB (SED)
SAS SSD (SLC, 6Gb)
N/A
200GB, 400GB
SATA SSD (MLC,
3Gb)
N/A
100GB, 200GB
Express Flash
1
PCIe SSD (SLC)
N/A
175GB, 350GB
1
Available Q2 2012
Express Flash drives use PCIe and SSD technologies to provide performance, scalability, and optimal
serviceability. Accelerated performance with high IOPs is made possible without requiring processor
resources or capturing DRAM. Also, Express Flash drives use a standardized, 2.5-inch hot-plug form
factor, which saves critical PCIe slot space by moving drives from the back to the front of the system
and allows a common management process for all drives.
The PowerEdge R720 has an option to support up to four hot-plug Express Flash PCIe SSD drives
(available Q2 2012) in the 2.5-inch chassis.
The R720xd does not support Express Flash drives.
26
PowerEdge R720 and R720xd Technical Guide
Table 13 lists the types of external storage devices supported by the R720 and R720xd.
Device type
Description
Supports connection to external USB tape products (supports boot
from Dell PowerVault™ RD1000)
Supports connection to external SAS tape products
External tape
Supports connection to external FC tape products
Supports connection to external SCSI tape products (legacy support
only)
Supports connection to external iSCSI tape products
NAS / IDM appliance software
Supports NAS software stack
Dell PowerVault NAS
Supports connection to current PowerVault NAS (Network Attached
Storage) products
PowerVault DAS
Supports connection to current PowerVault direct-attach storage
(DAS) (including JBOD and RBOD enclosures) products
PowerVault SAN
Supports connection to current PowerVault storage area network
(SAN) (including Dell EqualLogic™, iSCSI, Dell-EMC arrays, and JBOD
disk enclosures) products
PowerVault IDM
Supports connection to current PowerVault intelligent data
management (IDM) (archive solutions, de-duplication, B2D, and
data-protection appliances) products
Dell provides highly capable RAID options for you to ensure that your data remains safe. Dell’s RAID
controller options offer impressive performance improvements, including the following features:

FastPath™ I/O: This feature can help accelerate performance when operating on SSDs.

Split mirror: This function allows you to break mirrored disk connection in order to quickly
replace a drive.

Physical disk power management (Dimmer Switch™): This feature allows for power control of
spare or idle drives, which can save energy and operating expenses.
The newest line of PowerEdge RAID Controllers (PERCs) offer high I/O performance for a variety of
uses, including database applications and streaming digital media environments.
The PERC S110 is supported on the R720 (3.5-inch chassis only) and is not supported on the
R720xd.
27
PowerEdge R720 and R720xd Technical Guide
Table 14 lists the RAID controllers supported on the R720 and R720xd.
Controller
Description
Features
RAID
modes
Form factor
Usage model
PERC
H810
External
Eight-port, external,
6Gb/s PCIe RAID
controller that supports
up to 192 SATA and SAS
HDDs or SSDs
Includes 1GB NV DDR3
cache, premium
performance and feature
set, security SED/EKMS,
and SSD as cache
0, 1, 10, 5,
50, 6, 60
Adapter
Premium
performance
PERC
H710P
Internal
Eight-port, internal,
6Gb/s PCIe RAID
controller that supports
up to 32 SATA and SAS
HDDs or SSDs
Includes 1GB NV DDR3
cache, premium
performance and feature
set, security SED/EKMS,
and SSD as cache
0, 1, 10, 5,
50, 6, 60
Adapter
Premium
performance
PERC H710
Eight-port, internal,
6Gb/s PCIe RAID
controller that supports
up to 32 SATA and SAS
HDDs or SSDs
Includes 512MB DDR3
cache, advanced feature
set, security SED/EKMS,
and SSD as cache
0, 1, 10, 5,
50, 6, 60
Adapter
Performance
PERC
H310
Eight-port, internal,
6Gb/s PCIe RAID
controller that is a
low-cost, entry-level
solution supporting up
to 32 SATA and SAS
HDDs or SSDs
Supports hot-plug drives,
expansion, tape drives,
pass-thru
0, 1, 10, 5,
50
Adapter
Value
PERC S110
Software
RAID
(R720 only)
3Gb/s SATA software
RAID controller that is a
low-cost, entry-level
solution, supporting up
to four physical disks or
eight virtual disks
Supports hot-plug SATA
drives (4-drive
maximum); no
®
expansion; Microsoft
®
Windows only
0, 1, 5, 10
Motherboard
-embedded
SATA
Entry-level
For more information about the latest PERC offerings, see Dell.com/PERC.
CacheCade is a technology that provides automated storage tiering on SSDs with the PERC H810
and H710P. It works by detecting the most-often accessed data and copying it over time to the
CacheCade SSD(s) where that cached data is accessed directly, instead of accessing the hard disk
drives. This can dramatically increase how your applications respond when they are under peak
traffic times and how they perform when response time is critical.
CacheCade provides cost-effective performance scaling for database-type applications that
perform lots of random reads, and saves the cost of adding extra drives.
28
PowerEdge R720 and R720xd Technical Guide
The PowerEdge R720 supports one of the following internal optical drive options:


DVD-ROM
DVD+RW
The R720xd does not support an internal optical drive.
The R720 supports the Dell PowerVault™ RD1000 internal backup device on the 2.5-inch chassis
only. Internal tape drives are not supported on the R720, and the R720xd does not support any
internal backup device.
29
PowerEdge R720 and R720xd Technical Guide
The Dell™ PowerEdge™ R720 and R720xd offer balanced, scalable I/O capabilities, including
integrated PCIe 3.0-capable expansion slots. Dell Select Network Adapters, Dell’s network daughter
cards, let you choose the right network fabric without using up a valuable PCI slot. Pick the speed,
technology, vendor, and other options, such as switch independent partitioning, which lets you
share and manage bandwidth on 10GbE connections.
The Select Network Adapter family is purpose-built and includes flexible LAN on Motherboard (LOM)
card options for Dell PowerEdge 12th generation servers. The Select Network Adapter form factor
delivers the value of LOM integration with the system, including BIOS integration and shared port for
manageability while providing the flexibility of a modular card.
The PowerEdge R720 and R720xd support one custom network daughter card (NDC), as part of
Select Network Adapters family, to house the complete LOM subsystem. There are two form factors
of Select Network Adapters—one for blade servers and one for rack servers (shown Figure 12). The
rack NDC options supported on the R720 and R720xd include a selection of 1GbE and 10GbE port
cards, such as 1000Base-T, 10GBASE-T and 10Gb SFP+.
30
PowerEdge R720 and R720xd Technical Guide
Table 15 lists the available Select Network Adapter options and supported features for the R720 and
R720xd.
®
Features
®
Broadcom
5720 Base-T
Intel I350
Base-T
Broadcom
57800 SFP+
Intel X540
Base-T
4 x 1Gb
4 x 1Gb
2 x 1Gb +
2 x 10Gb
2 x 1Gb +
2 x 10Gb
1Gb
1Gb
1Gb and 10Gb
1Gb and 10Gb
Not
supported
Not
supported
Not
supported
Supported
(10GE only)
Not
supported
Not
supported
Supported
Supported
Supported
Not
supported
Not
supported
Not
supported
Not
supported
Not
supported
Supported
Not
supported
Not
supported
Supported
Not
supported
Not
supported
Not
supported
Supported
4
Not
supported
Not
supported
Not
supported
Supported
5
1
3
Not
supported
2
Not
supported
1
Only 10GbE ports have iSCSI HBA support.
Only 10GbE ports have FCoE support.
3
Only 10GbE ports have Switch Independent Partitioning support. The maximum number of partitions
supported is four (two partitions per 10Gb port). 1Gb ports do not support switch independent partitioning.
4
Only 10GbE ports have DCB support.
5
Only 10GbE ports have ISCSI TLV support.
2
With R720 and R720xd, the job of deploying, updating, monitoring, and maintaining the Select
Network Adapters is fast and easy. System management integration features include the following:

Pre-boot: Use the Dell Lifecycle Controller graphical user interface (GUI) to set configuration
such as bandwidth allocation or firmware revision level

Post-boot: Agent-free out-of-band or high-speed in-band connection over LOM through the
Operating System/BMC pass-thru feature for sensory information

Automation of firmware and driver version deployment upon component replacement

Automatic monitoring of NIC status and notification on SNMP traps

Local or remote re-configuration of any NIC, physical or virtual
31
PowerEdge R720 and R720xd Technical Guide

PXE boot enabled on all LOM and NDCs for ease of use

Boot from SAN (iSCSI, FCoE) configuration for networking devices through the USC
For information on card installation, requirements, and slot priorities, see the PowerEdge R720 and
R720xd Systems Owner’s Manual on Support.Dell.com/Manuals.
The R720 and R720xd provide greatly expanded PCIe slot capability over their predecessor servers.
This is made possible by the 40 PCIe lanes available from each processor in the system. The R720
and R720xd have been designed to be PCIe 3.0 compliant in order to take full advantage of the
processor capabilities. Table 16 details the R720 and R720xd PCIe slots.
System
Slots
1
Slot types
R720
R720xd
7
6
One x16 full-length, full-height
Three x8 full-length, full-height
Three x8 half-length, half-height
Two x16 full-length, full-height
One x8 full-length, full-height
Three x8 half-length, half-height
1
In a single-processor configuration, slots 1–4 are not usable
The R720 and R720xd support a variety of PCIe expansion cards. Table 17 lists the supported add-in
NICs and HBAs for the R720 and R720xd.
Type
Adapter
Broadcom 5720 2x1Gb (1Gb)
Broadcom 5720 4x1Gb (1Gb)
Intel I350 2x1Gb (1Gb)
Intel I350 4x1Gb (1Gb)
1Gb/10Gb NICs
Broadcom 2x10Gb 57810S SFP+ (10Gb)
Intel X540 2x10Gb SFP+ (10Gb)
Intel X540 2x10Gb BT (10Gb)
®
QLogic QLE8262 2x10G SFP+ (10Gb)
®
Brocade BR1020 2x10G SFP+ (10Gb)
QLogic QLE2460 (4Gb)
FC4/FC8 HBAs
QLogic QLE2462 (4Gb)
QLogic QLE2560 (8Gb)
QLogic QLE2562 (8Gb)
32
PowerEdge R720 and R720xd Technical Guide
Type
Adapter
®
Emulex LPe12000 (8Gb)
Emulex LPe12002 (8Gb)
Brocade BR815 (8Gb)
Brocade BR825 (8Gb)
In addition to the NICs and HBAs listed in Table 17, the supported PCIe expansion cards for the R720
and R720xd are listed in Table 18.
Type
Adapter
®
NVIDIA M2090 (double wide)
NVIDIA M2075 (double wide)
GPUs
(R720 only)
NVIDIA M2070Q (double wide)
NVIDIA M2070 (double wide)
AMD V7800P FirePro™ (single wide)
GPU HICs
(R720 only)
NVIDIA HIC
Dell PLX HIC
®
PCIe SSDs
PCIe bridge
®
Fusion-io IoDrive 640GB V1
Fusion-io PCIe SSD V2
PCIe bridge adapter for front-accessible, hot-plug
Express Flash PCIe SSDs (available Q2 2012)
For the latest information on supported PCIe expansion cards for the R720 and R720xd, visit
Dell.com.
33
PowerEdge R720 and R720xd Technical Guide
Lower overall system-level power draw is a result of Dell’s breakthrough system design. PowerEdge
servers maximize performance per watt through a combination of power and cooling, energy
efficient technologies, and tools. Additionally, PowerEdge servers have an extensive collection of
sensors that automatically track thermal activity, which helps regulate temperature thereby reducing
server noise and power consumption.
With the rise in the cost of energy coupled with increasing data center density, Dell provides tools
and technologies to help you realize greater performance with less energy cost and waste. More
efficient data center usage can reduce costs by slowing the need for additional data center space.
Table 19 lists the tools and technologies Dell offers to help you achieve your data center goals by
lowering power consumption and increasing energy efficiency.
Feature
Description
Power supply units (PSU)
portfolio
Dell’s PSU portfolio includes intelligent features such as dynamically
optimizing efficiency while maintaining availability and redundancy. Find
additional information in the Power supply units section.
Tools for right-sizing
Energy Smart Solution Advisor (ESSA) is a tool that can help you determine
the most efficient configuration possible. With Dell’s ESSA, you can calculate
the power consumption of your hardware, power infrastructure, and storage.
ESSA can help you determine exactly how much power your server will use
at a given workload, and the PSU Advisor can help you choose the best,
most efficient PSU for your workload. Learn more at Dell.com/calc.
Energy Smart Data Center Assessment is a Dell Services offering that uses
infrastructure and thermal analysis to help maximize system efficiency. Learn
more at Dell.com/EnergySmart.
Industry compliance
Power monitoring
accuracy
Power capping
Dell’s servers are compliant with all relevant industry certifications and
®
guidelines, including 80 PLUS, Climate Savers, and ENERGY STAR .
PSU power monitoring improvements include:
 Dell’s power monitoring accuracy is currently 1%, whereas the industry
standard is 5%

More accurate reporting of power

Better performance under a power cap
Use Dell’s systems management to set the power cap limit for your systems
to limit the output of a PSU and reduce system power consumption. Dell is
®
the first hardware vendor to leverage Intel Node Manager for
circuit-breaker fast capping.
iDRAC7 Enterprise provides server-level management that monitors, reports,
and controls power consumption at the processor, memory, and system
level.
Systems management
34
Dell OpenManage™ Power Center delivers group power management at
the rack, row, and data center level for servers, power distribution units, and
uninterruptible power supplies.
PowerEdge R720 and R720xd Technical Guide
Feature
Description
Intel Node Manager is an embedded technology that provides individual
server-level power reporting and power limiting functionality. Dell offers a
complete power management solution comprised of Intel Node Manager
accessed through Dell iDRAC Enterprise and OpenManage Power Center
that allows policy-based management of power and thermals at the
individual server, rack, and data center level.
Active power management
Hot spare reduces power consumption of redundant power supplies.
Thermal control of fan speed optimizes the thermal settings for your
environment to reduce fan consumption and lower system power
consumption.
Idle power enables Dell servers to run as efficiently when idle as when at full
workload.
Fresh air cooling
With the thermal design and reliability of Dell products, you can have the
capability to operate at excursion-based temperatures beyond the industry
standard of 35°C (95°F) without impacting your availability model. This
solution takes into account servers, networking, storage, and other
infrastructure. Find additional information at Dell.com/FreshAir.
Dell offers some of the industry’s highest-efficiency power infrastructure
solutions, including:
 Power distribution units (PDUs)
Rack infrastructure
 Uninterruptible power supplies (UPS)
 Energy Smart containment rack enclosures
Find additional information at: http://content.dell.com/us/en/enterprise/
power-and-cooling-technologies-components-rack-infrastructure.aspx.
Find additional information at Dell.com/PowerAndCooling and Power.com/PowerCenter.
Energy Smart power supplies have intelligent features, such as the ability to dynamically optimize
efficiency while maintaining availability and redundancy. Also featured are enhanced
power-consumption reduction technologies, such as high-efficiency power conversion and
advanced thermal-management techniques, and embedded power-management features,
including high-accuracy power monitoring.
The following power supply unit options are available for the R720 and R720xd:

495W AC

750W AC

1100W AC

1100W DC (available Q2 2012)
35
PowerEdge R720 and R720xd Technical Guide
Figure 13 shows a 750W power supply unit extended from an R720 system.
The PowerEdge R720 and R720xd support up to two AC or DC power supplies with 1 + 1
redundancy, auto sensing, and auto-switching capability.
Dell PSUs have achieved Platinum efficiency levels as shown in Table 20.
Form factor
Redundant 86mm
Output
Efficiency targets by load
Class
10%
20%
50%
100%
495W
Platinum
82.0%
90.0%
94.0%
91.0%
750W
Platinum
82.0%
90.0%
94.0%
91.0%
Platinum+
89.0%
93.0%
94.5%
92.0%
Gold
80.0%
88.0%
92.0%
88.0%
1100W
1
1100W DC
1
1100W DC power supply available Q2 2012.
Thermal management of PowerEdge R720 and R720xd delivers high performance for the right
amount of cooling to components at the lowest fan speeds across a wide range of ambient
temperatures from 10°C to 35°C (50°F to 95°F) and to extended ambient temperature ranges (see
Table 32) . The benefits to you are lower fan power consumption (lower server system power and
data center power consumption) and greater acoustical versatility. The PowerEdge R720 is quiet
enough to be used in an office environment in typical and minimum configurations, and the R720xd
can also operate at a similar level in certain configurations.
The thermal design of the PowerEdge R720 and R720xd reflect the following:

36
Optimized thermal design: The system layout is architected for optimum thermal design.
System component placement and layout are designed to provide maximum airflow coverage to
critical components with minimum expense of fan power.
PowerEdge R720 and R720xd Technical Guide





Comprehensive thermal management: The thermal control system regulates the fan speed
based on several different responses from all system-component temperature sensors, as well as
inventory for system configurations. Temperature monitoring includes components such as
processors, DIMMs, chipset, the inlet air ambient, hard disk drives, NDC, and GPU.
Open and closed loop thermal fan speed control: Open loop thermal control uses system
configuration to determine fan speed based on inlet air ambient temperature. Closed loop
thermal control method uses feedback temperatures to dynamically determine proper fan
speeds.
User-configurable settings: With the understanding and realization that every customer has
unique set of circumstances or expectations from the system, in this generation of servers, we
have introduced limited user-configurable settings residing in the iDRAC7 BIOS setup screen. For
more information, see the PowerEdge R720 and R720xd Systems Owner’s Manual on
Support.Dell.com/Manuals and “Advanced Thermal Control: Optimizing across Environments
and Power Goals” on Dell.com.
Cooling redundancy: The R720 and R720xd allow N+1 fan redundancy, allowing continuous
operation with one fan failure in the system.
Environmental specifications: The optimized thermal management makes the R720 and R720xd
reliable under a wide range of operating environments as shown in Table 32.
The acoustical design of the PowerEdge R720 and R720xd reflect the following:




37
Versatility: The R720 and R720xd save you power draw in the data center but are also quiet
enough for office environment in typical and minimum configurations. Compare the values for
LpA in Table 21 and Table 22 for these configurations, and note that they are lower than ambient
measurements of typical office environments. You may find that the system is sufficiently quiet
where the sound it emits blends into the environment.
Adherence to Dell’s high sound quality standards: Sound quality is different from sound power
level and sound pressure level in that it describes how humans respond to annoyances in sound,
like whistles and hums. One of the sound quality metrics in the Dell specification is prominence
ratio of a tone, which is listed in Table 21 and Table 22.
Noise ramp and descent at bootup from power off: Fan speeds and noise levels ramp during
the boot process (from power-off to power-on) in order to add a layer of protection for
component cooling in the event that the system were not to boot properly. In order to keep the
bootup process as quiet as possible, the fan speed reached during bootup is limited to about half
of full speed.
Noise level dependencies: If acoustics is important to you, several configuration choices and
settings are important to consider:
- For lower acoustical output, use a small number of lower rotational-speed SATA hard drives,
nearline SAS hard drives, or non-rotational devices like SSDs. 15k hard drives generate more
acoustic noise than that of lower rotational-speed hard drives, and noise increases with
number of hard drives.
- Fan speeds and noise may increase from baseline factory configurations if certain profiles are
changed by the user or the system configurations are updated. The following is a list of items
that impact fan speeds and acoustical output:
> iDRAC7 BIOS settings: Performance Per Watt (DAPC or OS) may be quieter than
Performance or Dense Configuration (iDRAC Settings > Thermal > Max. Exhaust
Temperature or Fan speed offset).
PowerEdge R720 and R720xd Technical Guide
>
>
>
>
>
The quantity and type of PCIe cards installed: This affects overall system acoustics.
Installation of more than two PCIe cards results in an increase in overall system acoustics.
Utilization of a GPU card: This results in an increase in overall system acoustics.
PCIe controller-based SSD drives: Drives such as Express flash drives and Fusion-io®
cards require greater airflow for cooling, and result in significantly higher noise levels.
Systems with an H310 PERC: This configuration may be quieter than those with an H710
PERC with battery backup. However, higher noise levels result when a system is
configured as non-RAID.
Hot spare feature of power supply unit: In the system default setting, the Hot Spare
Feature is disabled; acoustical output from the power supplies is lowest in this setting.
Table 21 and Table 22 detail the acoustical performance for the R720 and R720xd.
Configuration
(23 ± 2°C
CPUs
ambient)
Minimum
Typical
Hard drives
Power
supply
unit
1
1 x 250GB
SATA (7.2k)
1x
495W
1x
8GB
1 x PERC
H310
2
6 x 300GB
SAS (10K)
2x
750W
8x
8GB
1 x PERC
H710,
1 x GbE
NIC
Hard drives
Power
supply
unit
1
1 x 250GB
SATA (7.2k)
1x
495W
1x
8GB
1 x PERC
H310
2
14 x 300GB
SAS (10K)
2x
750W
8x
8GB
1 x PERC
H710,
1 x GbE
NIC
Configuration
(23 ± 2°C
CPUs
ambient)
Minimum
Typical
PCI
Memory card/HDD
controller
1
2
Operating
mode
LWA-UL
(bels)
(dBA)
Prominent
3
tones
Idle
4.0
20
None
4.1
20
None
4.4
25
None
4.5
26
None
Stressed
4
Idle
Stressed
4
PCI
Operating
Memory card/HDD
mode
controller
Idle
4
Stressed
Idle
5
4
Stressed
5
LWA-UL
1
LpA
2
LpA
(bels)
(dBA)
Prominent
3
tones
4.7
28
None
4.8
28
None
4.8
28
None
5.0
30
None
1
LwA – UL is the upper limit sound power levels (LwA) calculated per section 4.4.1 of ISO 9296 (1988) and measured in
accordance to ISO 7779 (2010).
2
LpA is the average A-weighted sound pressure level from the four bystander positions calculated per section 4.3 of
ISO9296 (1988) and measured in accordance with ISO7779 (2010). The system is placed in a half rack enclosure (base of
system is 25 cm above reflective floor).
3
Prominent tone: Criteria of D.6 and D.11 of ECMA-74 11th ed. (2010) are followed to determine if discrete tones are
prominent. The system is placed in a half rack enclosure (base of system is 75 cm above reflective floor) and acoustic
transducer is at front bystander position, ref ISO7779 (2010 Section 8.6.2).
4
Idle: Reference ISO7779 (2010) definition 3.1.7; system is running in its OS but no other specific activity.
5
Stressed processor: An operating mode per ISO7779 (2010) definition 3.1.6. The software SPECPower at 50% loading is
activated to stress the processors.
For more information on Dell’s acoustical design, see the Dell Enterprise Acoustics white paper.
38
PowerEdge R720 and R720xd Technical Guide
The rack rail systems for the Dell™ PowerEdge™ R720 and R720xd provide toolless support for
4-post racks with square or unthreaded round mounting holes, including all generations of Dell
racks. Compared to the predecessor R710 sliding rails that required the use of adapter brackets, the
sliding rails for the R720 and R720xd now offer native support for threaded-hole racks with the new
ReadyRails™ II mounting interface.
The optional cable management arm (CMA) can be mounted on either the left or right side of the
sliding rails without the use of tools for fast and easy deployment.
The R720 and R720xd support both sliding rails and static rails. Both rails have a new slim rail design
that supports the wide system chassis.
The sliding rails (shown in Figure 14) allow the system to be fully extended out of the rack for service
and are available with or without the optional cable management arm (CMA).
39
PowerEdge R720 and R720xd Technical Guide
The static rails (shown in Figure 15) support a wider variety of racks than the sliding rails, but do not
support serviceability in the rack and are not compatible with the CMA.
One key factor in selecting the proper rails is identifying the type of rack in which they will be
installed. Both the sliding rails and the static rails support toolless mounting in 19”-wide, EIA-310-E
compliant square hole and unthreaded round-hole 4-post racks. Both also support tooled mounting
in threaded hole 4-post racks, but only the static rails, as the more universal solution, support
mounting in 2-post (Telco) racks.
Table 23 lists the rack rail systems that the R720 and R720xd support.
Rack types supported
System
R720/R720xd
Rail
identifier
Mounting interface
Rail
type
4-post
2-post
Square
Round
Thread
Flush
Center
B6
ReadyRails II
Sliding



X
X
B4
ReadyRails
Static





For detailed information about rail dimensions, see the Rack rail specifications section in Appendix A.
For more information on installing the T620 in a rack, see the Rack Installation Instructions on
Support.Dell.com/Manuals.
40
PowerEdge R720 and R720xd Technical Guide
The optional cable management arm (CMA) for the R720 and R720xd organizes and secures the
cords and cables exiting the back of the server and unfolds to allow the server to extend out of the
rack without having to detach the cables. Some key features of the CMA include:

Large U-shaped baskets to support dense cable loads

Open vent pattern for optimal airflow

Ability to be mounted on either side

Use of hook-and-loop straps rather than plastic tie wraps to eliminate the risk of cable damage
during cycling

Low-profile fixed tray to both support and retain the CMA in its fully closed position
 Ability to mount the CMA and tray without the use of tools, due to snap-in designs
For more information on installing the R720 and R720xd in a rack, see the Rack Installation
Instructions on Support.Dell.com/Manuals.
41
PowerEdge R720 and R720xd Technical Guide
The Dell™ PowerEdge™ R720 and R720xd support a wide range of industry-standard operating
systems and virtualization software.
Table 24 lists the primary operating systems supported on the R720 and R720xd. For the latest
information on supported operating systems, see Dell.com/OSsupport.
Operating System
Platform
Edition
Red Hat Enterprise Linux 5.7
x32
x64
N/A
Red Hat Enterprise Linux 6.1
x64
N/A
Red Hat Enterprise Linux for HPC
x64
N/A
SUSE Linux Enterprise Server 11 SP2
x64
N/A
SUSE Linux Enterprise Server 10 SP4
x64
N/A
x64
Standard
Premium add-on
x86
Web
Standard
Enterprise
x64
(with Microsoft
Hyper-V™ role
enabled)
Web
Standard
Enterprise
Datacenter
x64
(with Hyper-V
role enabled)
Web
Standard
Enterprise
Datacenter
HPC
®
®
®
®
®
Microsoft Windows Small Business
1
Server 2011
®
Microsoft Windows Server 2008
with SP2
Microsoft Windows Server 2008 R2
with SP1
1
Not validated for use with GPUs
42
PowerEdge R720 and R720xd Technical Guide
Support of the operating systems listed in Table 25 is limited to a virtual environment as a guest
operating system. Please contact the software vendor for additional support or questions about
running the operating system in a virtualized environment.
Operating System
Microsoft Windows 2003
1
Microsoft Windows 2003 R2
1
with SP2
Platform
Edition
x86
Web
x86
Standard
Enterprise
x64
Standard
Enterprise
Datacenter
1
Not validated for use with AMD GPUs
One of the key features for virtualization on the R720 and R720xd is the support for a fail-safe
hypervisor. By running the hypervisor on an optional SD card and installing a backup copy on the
other mirrored SD card, you can protect against hardware failure and maximize virtualization
uptime. Table 26 highlights the virtualization support for the R720 and R720xd.
Operating systems
Version
®
VMware
®1
®
®
vSphere v4.1 U2
ESX Classic
vSphere v4.1 U2
ESXi Installable
DIB
vSphere v4.1 U2
ESXi Embedded
FI
vSphere v5.0
ESXi (one version)
DIB
ESXi (one version)
FI/DIB
vSphere v5.0 U1
Citrix
Options
®
2
®
XenServer v6.0
—
DIB
DIB
FI = factory install; DIB = drop in box
1
vSphere Fault Tolerance is supported with these versions for the R720 (not for the R720xd)
2
Available Q2 2012
43
PowerEdge R720 and R720xd Technical Guide
Whether your IT environment consists of a few servers or a few thousand servers,
Dell™ OpenManage™ systems management solutions provide comprehensive management for
evolving IT environments. OpenManage is based on open standards and provides agent-based and
agent-free server lifecycle management functionality for Dell PowerEdge™ servers. OpenManage
solutions help you automate and streamline essential hardware management tasks.
The advanced management capabilities of Dell OpenManage also integrates into offerings from
other popular systems management solutions that you may already use, making Dell platforms easy
to manage and deploy in any IT environment. This ensures your IT services are available when your
business needs them. If you have already standardized on offerings from industry leaders, such as
BMC Software, Microsoft, Symantec, VMware, or other vendors, you can leverage OpenManage
integration and connections developed for use with your existing systems management framework
to efficiently manage Dell servers, storage, business-client PCs, and network devices.
Start with a firm foundation for efficient hardware management using OpenManage tools, utilities,
and management consoles. OpenManage systems management solutions consist of a combination
of embedded management features and software products that help you automate and simplify the
entire server lifecycle: deploy, update, monitor, and maintain. OpenManage solutions are
innovatively designed for simplicity and ease of use to help you reduce complexity, save time,
achieve efficiency, control costs, and empower productivity.
Dell systems management solutions include a wide variety of tools, products, and services that
enable you to leverage an existing systems management framework. As shown in Figure 16, Dell
systems management solutions are centered around OpenManage server management, featuring
iDRAC with Lifecycle Controller.
44
PowerEdge R720 and R720xd Technical Guide
The Dell OpenManage™ systems management portfolio includes powerful hardware and software
management tools and consoles. OpenManage simplifies the lifecycle of deploying, updating,
monitoring, and maintaining your Dell PowerEdge servers.
The Integrated Dell Remote Access Controller 7 (iDRAC7) with Lifecycle Controller is the heart of the
second generation of Dell PowerEdge server embedded management functionality. In addition to
enabling agent-free management, iDRAC7 with Lifecycle Controller provides remote access to the
system—whether or not there is a functioning operating system running on the server. These
embedded features improve all aspects of a typical server lifecycle. Table 27 describes the functions
and benefits of iDRAC7 with Lifecycle Controller.
Feature
Function
Benefit
Out of band
(OOB)
iDRAC7 offers real-time, agent-free OOB
monitoring, inventory, and alerting for
servers, direct-attach storage, and
network cards
Receive hardware notifications and email
alerts, independent of the OS or hypervisor
type or status—even if an OS or hypervisor is
not installed
Single code base
All server types have the same embedded
management hardware and firmware
Simplified and consistent maintenance
across server platforms
Dedicated
GigE port
(PowerEdge
rack and tower
systems)
Gigabit Ethernet replaces 10/100 on
predecessor iDRAC6
Fast throughput for better performance;
compatibility with setup for switches
Email alerts
Simplified, more informative, and
expanded coverage than previous
versions of iDRAC
Explicit, detailed information allows IT
administrators to be more efficient in
diagnosing and remediating an issue; an
embedded URL in e-mail alert notifications
enables launch to iDRAC7 GUI or virtual
console
vFlash media
Enabled with iDRAC7 Enterprise
Allows for use of a non-Dell SD card
Enhanced power
management
Integration with Intel Node Manager
provides data center level power
monitoring and capping
(requires iDRAC7 Enterprise)
Fine tune data center power usage and
report on historical power usage by rack, row
or room using OpenManage Power Center
Electronic
licensing
To obtain a software license key for
iDRAC7 Express or iDRAC7 Enterprise
after server purchase, submit a request to
purchase a software license key through
the Dell Licensing Portal or with a Dell
sales representative
New systems come with digital license
installed in the factory; free 30-day trial
versions are available; uses a license
management portal versus paper-based
licenses to simplify license management
45
PowerEdge R720 and R720xd Technical Guide
iDRAC7 Enterprise is available for the PowerEdge R720 and R720xd, and Dell also offers an option of
iDRAC7 Express. A detailed feature comparison for iDRAC7 Enterprise and iDRAC7 Express is shown
in Table 28.
iDRAC7
Enterprise
iDRAC7
Express
Local configuration with USC
∞
∞
IPMI 2.0
∞
∞
Embedded diagnostics
∞
∞
Local OS install
∞
∞
Local updates
∞
∞
Driver pack
∞
∞
Shared NIC (LOM)
∞
∞
Remote update
∞
∞
Power control
∞
∞
Encryption
∞
∞
∞
∞
IPv6
∞
∞
Auto-discovery
∞
∞
Auto-recovery
∞
∞
Web GUI
∞
∞
Remote CLI
∞
∞
Local/SSH CLI
∞
∞
Serial redirection
∞
∞
Remote configuration
∞
∞
Email alerts
∞
∞
SNMP alerts
∞
∞
Power monitoring
∞
∞
Comprehensive monitoring
∞
∞
Dedicated NIC 1Gbps (100MB in iDRAC6)
∞
Part replacement
∞
Backup and restore configurations
∞
Virtual console (4 user)
∞
Virtual console chat
∞
Support for customer-supplied SD cards for vFlash media
∞
Feature (function)
Crash screen capture
46
1
PowerEdge R720 and R720xd Technical Guide
iDRAC7
Enterprise
Feature (function)
Virtual flash partitions
∞
Virtual media
∞
Virtual folders
∞
Remote file share
∞
Crash video playback
∞
Boot record/playback
∞
Power capping
∞
Enterprise group power management
∞
Directory services (AD, LDAP)
∞
PK authentication
∞
Two-factor authentication
1
2
iDRAC7
Express
∞
2
®
®
®
Requires OMSA agent on target server; Uses Microsoft ActiveX on Internet Explorer only
Most systems management solutions require pieces of software, called agents, to be installed on
each node in order to be managed within the IT environment. Additionally, the same agent is often
used as a local interface into the hardware health and may be accessed remotely as a management
interface, typically referred to as a one-to-one (1:1) interface. For customers that continue to use
agent-based solutions, Dell provides OpenManage Server Administrator.
The Dell OpenManage Server Administrator (OMSA) agent gives you a comprehensive, one-to-one
systems management solution for both local and remote servers and their storage. OMSA can help
simplify single-server monitoring with a secure command-line interface (CLI) or Web-based
management graphical user interface (GUI). It can also be used to view system configuration,
inventory, health, and performance.
Because Dell PowerEdge servers have embedded server lifecycle management, in many cases, there
is no need to install an OpenManage systems management software agent into the operating
system of a Dell PowerEdge server. This greatly simplifies and streamlines the management
footprint.
The central console in a systems management solution is often referred to as the one-to-many
(1:M) console. The central console provides a rapid view and insight into the overall health of all
systems in the IT environment. The Dell systems management portfolio includes several powerful
consoles, depending upon your needs, including the following:

47
Dell OpenManage Essentials— OpenManage Essentials (OME) is a recently released systems
management console that provides a comprehensive view of Dell systems, devices, and
components in an enterprise network. It is used to monitor Dell PowerEdge servers,
EqualLogic™ and PowerVault™ storage, and PowerConnect™ switches; to update and configure
PowerEdge R720 and R720xd Technical Guide
Dell servers; and to create asset reports. OpenManage Essentials also communicates health
status alerts for Dell servers, storage, and network devices to the Dell KACE™ K1000 service
desk. OpenManage Essentials is available as a no-charge software download from
Support.Dell.com.

Dell Management Console—Dell Management Console (DMC) offers sophisticated data-center
management capabilities with comprehensive reporting features. DMC can perform basic
hardware management and can manage operating systems and applications using various plugins from Symantec.

Dell IT Assistant—Dell IT Assistant (ITA) is a console for managing Dell servers, storage arrays,
and other components distributed throughout a network. Dell IT Assistant allows for easy
identification of system issues through alerts, helping to reduce system downtime. Systems
administrators can easily monitor systems anywhere within their network using ITA. ITA is
supported on the R720 and R720xd, however, enhanced functionality is now available with
OpenManage Essentials.
Dell OpenManage systems management tools and utilities consist of the following:

Dell Repository Manager—The Dell Repository Manager (RM) is a standalone GUI-based
productivity tool that helps simplify the process of managing downloads and baseline BIOS,
firmware, and driver updates. Repository Manager can create deployment disks as well as create
and manage customized repositories.

Dell OpenManage Server Update Utility—The Dell Server Update Utility (SUU) is a DVD-based
application for identifying and applying BIOS and firmware updates to your Dell PowerEdge
servers.

Dell OpenManage Systems Build and Update Utility—The Dell System Build and Update Utility
(SBUU) provides one-to-one and one-to-many deployment and single-server update
capabilities in the pre-operating system environment.

Dell Update Packages—The Dell Update Packages (DUP) is a self-contained executable in a
standard package format that updates a software element on a Dell server such as the BIOS, a
driver, firmware and other software updates.

Dell OpenManage Deployment Toolkit—The Dell OpenManage Deployment Toolkit (DTK) is a
CLI-based tool that includes a set of utilities for configuring and deploying Dell PowerEdge
systems, and can be used to build scripted, unattended OS installations to deploy large numbers
of servers in a reliable fashion.

RACADM—The RACADM command-line utility provides a scriptable interface that allows you to
locally or remotely configure iDRAC7.

IPMITool—IPMITool includes scriptable console application programs used to control and
manage remote systems using the IPMI version 1.5 and later protocol.
Dell OpenManage easily integrates with several leading third-party consoles, including:

48
Dell Server Management Pack Suite for Microsoft System Center Operations
Manager (SCOM)—This suite of server management packs enables several functions through
System Center Operations Manager, including in-band discovery and monitoring of racks and
towers, out-of-band discovery and monitoring through iDRAC with Lifecycle Controller, as well
as performance and advanced monitoring.
PowerEdge R720 and R720xd Technical Guide

Dell Lifecycle Controller Integration (DLCI) for Microsoft System Center Configuration
Manager (SCCM)—This pack contains Dell Lifecycle Controller Integration (DLCI), which
integrates OpenManage functions in SCCM to manage the Dell PowerEdge servers, including
auto-discovery, operating system deployment and configuration of hardware elements, (RAID,
NIC, BIOS, iDRAC), OS and hypervisor agnostic updates, firmware management, and system
viewer utilities.

Dell Server PRO Management Pack for Microsoft System Center Virtual Machine
Manager (SCVMM)—This pack manages Dell physical servers and hosts of virtual machines (VMs)
by using Microsoft System Center Operations Manager/System Center Essentials (SCOM/SCE)
and System Center Virtual Machine Manager (SCVMM). It provides guidance for remedial actions
based on alerts to best manage virtual machines and handle the impacts appropriately.

Dell Management Plug-in for VMware® vCenter™—This plug-in allows IT administrators to
monitor, provision, and manage the physical PowerEdge server hardware and firmware from a
dedicated Dell menu accessed through the VMware vCenter console using the same role-based
access control model as vCenter, combining physical server management.

BMC Software—Dell and BMC Software work together to simplify IT by ensuring tight integration
between Dell server, storage, and network management functionality and the BMC Software
process and data center automation products.
Dell OpenManage provides connections with many third-party consoles, including:

Dell OpenManage Connection for Computer Associates Network and
Systems Management—This connection allows you to monitor PowerEdge servers and
PowerVault storage arrays from within the Computer Associates Network and Systems
Management (CA NSM) console.

Dell OpenManage Connection for HP Operations Manager—This connection enables several
functions through HP Operations Manager, including auto-grouping, SNMP trap reception,
global health monitoring, and a context-sensitive launch of OpenManage Server Administrator.

Dell OpenManage Connection for IBM® Tivoli® Netcool/OMNIBus—This connection provides
event monitoring capabilities to monitor Dell PowerEdge servers and Dell EqualLogic systems. It
allows event monitoring, automatic event correlation, and launching device consoles from the
Netcool/OMNIbus console.
Dell OpenManage systems management is centered on automating the server management
lifecycle—deploy, update, monitor, and maintain. To manage an infrastructure properly and
efficiently, you must perform all of these functions easily and quickly. iDRAC7 with Lifecycle
Controller technology provides you with these intelligent capabilities embedded within the server
infrastructure. This allows you to invest more time and energy on business improvements and less
on maintenance. Figure 17 illustrates the various operations that can be performed during the
server’s lifecycle.
49
PowerEdge R720 and R720xd Technical Guide
Table 29 lists the products that are available for one-to-one and one-to-many operations, and
when they are used in the server’s lifecycle:
Operation
One-to-one
 Lifecycle Controller GUI
 DTK
 SBUU
 Symantec Deployment Server
 Dell Management Plug-in for
VMware vCenter
 KACE K1000 Appliance
 Lifecycle Controller Remote
Services
 BMC BladeLogic integration
with Lifecycle Controller
 Dell Server Deployment Pack
(DSDP) for Microsoft System
Center Configuration Manager and
Dell Lifecycle Controller
Integration (DLCI) for Microsoft
System Center Configuration
Manager
 iDRAC7 with LifeCycle
Controller
 Lifecycle Controller GUI
 Repository Manager
 DUP
 SUU
 SBUU
 Dell Management
Plug-in for VMware
vCenter




 Dell Update Catalogs for Microsoft
System Center Configuration
Manager
 Dell Lifecycle Controller
Integration (DLCI) for Microsoft
System Center Configuration
Manager
Deploy
Update
50
One-to-many
Dell OpenManage Essentials
Dell OpenManage ITA
Dell Management Console
Lifecycle Controller Remote
Services
PowerEdge R720 and R720xd Technical Guide
Operation
One-to-one
One-to-many
 iDRAC7
 OMSA
 Dell OpenManage Essentials
 Dell OpenManage ITA
 BMC ProactiveNet
Performance Management
 Dell OpenManage Power
Center
 Dell Management Console
 Dell Management Plug-in for
VMware vCenter
 BMC ProactiveNet
 Dell Server Management Pack Suite
for Microsoft System Center
Operations Manager (SCOM)
 IPMI
 iDRAC7
 Lifecycle Controller GUI
 Lifecycle Controller Remote
Services
Remediate:
 Dell Server PRO Management Pack
for Microsoft System Center Virtual
Machine Manager (SCVMM)
Monitor
Maintain
Replace parts:
 Dell Lifecycle Controller
Integration (DLCI) for Microsoft
System Center Configuration
Manager

For additional detailed information on Dell’s systems management portfolio, see the Dell Systems
Management Overview Guide on Support.Dell.com/Manuals.
51
PowerEdge R720 and R720xd Technical Guide
Figure 18 details the dimensions of the Dell™ PowerEdge™ R720 and R720xd chassis.
Xa
482.4mm
Xb
444.0mm
Y
87.3mm
Za
(with bezel)
Za
(without bezel)
32.0mm
18.0mm
Zb
Zc
684.0mm
723.0mm
Table 30 lists the weight of the R720 and R720xd chassis at maximum configuration as well as
empty of any hardware.
Configuration
52
R720
(2.5” chassis)
R720
(3.5” chassis)
R720xd
(2.5” chassis)
R720xd
(3.5” chassis)
29.5kg (64.9lbs)
29.2kg (64.3lbs)
29.5kg (64.9lbs)
32.5kg (71.5lbs)
11.7kg (25.7lbs)
10.3kg (22.7lbs)
11.7kg (25.7 lbs)
10.3kg (22.7lbs)
PowerEdge R720 and R720xd Technical Guide
Table 31 lists power supply specifications for the PowerEdge R720 and R720xd.
Specification
Current
consumption
Supply voltage
Frequency
Heat dissipation
(BTU/hr max.)
1100W DC
1100W AC
750W AC
495W AC
32A (X2)
12A–6.5A
10A–5A
6.5A–3A
-48V to -60V de CC
100–240VAC
-48V to -60V de CC
50/60Hz
50/60Hz
50/60Hz
4416
4100
2891
1908
1
100–240VAC
1
100–240VAC
1
1
Auto-ranging
Table 32 details the environmental specifications for the R720 and R720xd. For the most up-to-date
information, see the PowerEdge R720 and R720xd Systems Owner’s Manual and the PowerEdge
R720 and R720xd Getting Started Guide on Support.Dell.com/Manuals. For additional information
about environmental measurements for specific system configurations, see
Dell.com/environmental_datasheets.
Temperature and humidity
Continuous
operation
Expanded
operation
10°C to 35°C at 10% to 80% relative humidity (RH), with 26°C max dew point. De-rate
maximum allowable dry bulb temperature at 1 °C per 300m above 900 m (1 °F per
550 ft). When using the PowerEdge R720 with internal GPU card(s), the continuous
operation range is 10°C to 30°C at 10% to 80% RH, with 26 °C max dew point.
When operating in the expanded temperature range, system performance may be
impacted. When operating in the expanded temperature range, ambient temperature
warnings may be reported on the LCD and in the System Event Log.
< 10% of annual operating hours: 5 °C to 40 °C at 5% to 85% RH with 26 °C dew
point. Outside the standard operating temperature (10°C to 35°C), the system can
operate down to 5°C or up to 40°C for a maximum of 10% of its annual operating
hours. For temperatures between 35°C and 40°C, de-rate maximum allowable dry
bulb temperature by 1°C per 175 m above 950m (1°F per 319 ft).
< 1% of annual operating hours: –5°C to 45°C at 5% to 90% RH with 26°C dew point.
Outside the standard operating temperature (10°C to 35°C), the system can operate
down to –5°C or up to 45°C for a maximum of 1% of its annual operating hours. For
temperatures between 40°C and 45°C, de-rate maximum allowable dry bulb
temperature by 1°C per 125m above 950m (1°F per 228ft).
Expanded operating temperature restrictions:
 Do not perform a cold startup below 5°C
 The operating temperature specified is for a maximum altitude of 3050m
(10,000ft)
 Express Flash PCIe SSDs, GPUs, and LRDIMMs are not supported
 130W (4 core) processors are not supported
 Redundant power supplies are required
 Non Dell qualified peripheral cards and/or peripheral cards greater than 25W are
not supported
53
PowerEdge R720 and R720xd Technical Guide
Temperature and humidity
For the PowerEdge R720, a maximum 130W processor is supported in either the 8
hard drive or 16 hard drive chassis.
The following additional restrictions apply to PowerEdge R720xd:
 Maximum 95W processor is supported on 3.5-inch hard drive chassis
 Maximum 115 W processor is supported on 2.5-inch hard drive chassis
Only SSDs are allowed in the hard drive slots at the back of the 3.5-inch hard drive
chassis.
°
Storage
°
°
°
°
–40 C to 65 C (-40 to 149 F) with a maximum temperature gradation of 20 C per
hour
Maximum vibration
Operating
0.26Grms at 5-350Hz in all orientations
Storage
1.87Grms at 10-500Hz for 15 minutes (all six sides tested)
Maximum shock
One shock pulse in the positive z axis (one pulse on each side of the system) of 31G
Operating
for 2.6ms in the operational orientation
Six consecutively executed shock pulses in the positive and negative x, y, and z axes
(one pulse on each side of the system) of 71G for up to 2ms
Six consecutively executed shock pulses in the positive and negative x, y, and z axes
Storage
(one pulse on each side of the system) of 32G faired square wave pulse with velocity
change at
270in/s (685cm/s)
Altitude
-15.2m to 3048m (-50ft to 10,000ft) Note: For altitudes above 2950ft, the maximum
Operating
°
operating temperature is derated 1 F/550ft
Storage
-15.2ft to 10,668m (-50ft to 35,000ft)
Airborne contaminant level
G1 as defined by ISA-S71.04-1985
The Dell PowerEdge R720 and R720xd integrated Dell remote access controller (iDRAC)
incorporates an integrated video subsystem. The graphics controller is the 2D Matrox® G200. The
video frame buffer (16MB) is contained within the iDRACRAM (256MB) device.
The R720 and R720xd systems support the 2D graphics video modes listed in Table 33.
54
Resolution
Refresh rate (Hz)
Color depth (bit)
640 x 480
60, 70
8, 16, 32
800 x 600
60, 75, 85
8, 16, 32
1024 x 768
60, 75, 85
8, 16, 32
1152 x 864
60, 75, 85
8, 16, 32
1280 x 800 (UI)
—
—
1280 x 1024
60, 75
8, 16, 32
1440 x 900
60
8, 16, 32
PowerEdge R720 and R720xd Technical Guide
The rack rail adjustability ranges are listed in Table 34.
Server
R720/R720xd
Rail
identifier
Rail
type
Rail adjustability range (mm)
Square
Round
Rail depth (mm)
Threaded
Min
Max
Min
Max
Min
Max
without
CMA
with
CMA
B6
Sliding
676
868
662
861
676
883
714
845
B4
Static
608
879
594
872
604
890
622
—
The adjustment range of the rails is a function of the type of rack in which they are being mounted.
The min-max values listed above represent the allowable distance between the front and rear
mounting flanges in the rack. Rail depth without the CMA represents the minimum depth of the rail
with the outer CMA brackets removed (if applicable) as measured from the front mounting flanges
of the rack.
USB peripherals are supported through the front, back, and internal USB ports. They are USB 2.0
compliant.
55
PowerEdge R720 and R720xd Technical Guide
The R720 and R720xd systems conform to the industry standards in Table 35.
Standard
URL for information and specifications
ACPI
Advance Configuration and Power Interface
Specification, v2.0c
http://www.acpi.info/
Ethernet
IEEE 802.3-2005
http://standards.ieee.org/getieee802/802.3.html
HDG
Hardware Design Guide Version 3.0 for
Microsoft Windows Server
http://www.microsoft.com/whdc/system/platform/pcdesign/
desguide/serverdg.mspx
IPMI
Intelligent Platform Management Interface,
v2.0
http://www.intel.com/design/servers/ipmi/
DDR3 Memory
DDR3 SDRAM Specification,
Rev. 3A
http://www.jedec.org/download/search/JESD79-3C.pdf
LPC
Low Pin Count Interface Specification, Rev.
1.1
http://developer.intel.com/design/chipsets/industry/lpc.htm
PCI Express
PCI Express Base Specification Rev. 2.0 and
3.0
http://www.pcisig.com/specifications/pciexpress/
PMBus
Power System Management Protocol
Specification, v1.2
http://pmbus.info/specs.html
SAS
Serial Attached SCSI, v1.1
http://www.t10.org/ftp/t10/drafts/sas1/sas1r10.pdf
SATA
Serial ATA Rev. 2.6; SATA II, SATA 1.0a
Extensions, Rev. 1.2
https://www.sata-io.org/secure/spec_download.asp
http://www.sata-io.org/docs/S2Ext_1_2_Gold.pdf
SMBIOS
System Management BIOS Reference
Specification, v2.7
http://www.dmtf.org/standards/smbios/
TPM
Trusted Platform Module Specification, v1.2
https://www.trustedcomputinggroup.org/downloads/
specifications/tpm/tpm
UEFI
Unified Extensible Firmware Interface
Specification, v2.1
http://www.uefi.org/specs/
USB
Universal Serial Bus Specification, Rev. 2.0
http://www.usb.org/developers/docs/
Windows Logo
Windows Logo Program System and Device
Requirements, v3.10
http://www.microsoft.com/whdc/winlogo/
hwrequirements.mspx
56
PowerEdge R720 and R720xd Technical Guide
Table 36 provides a list of documents and websites that provide for more information on the Dell™
PowerEdge™ R720 and R720xd.
Resource
Description of contents
Location
PowerEdge R720
and R720xd
Systems Owner’s
Manual
This manual is provided in HTML format on the CD
provided with the R720 or R720xd systems, and also in
HTML and PDF format at the Dell support site. A printed
version is available in Asian languages as a customerorderable option. This manual provides information on
the following:
 Chassis features
Support.Dell.com/Manuals
PowerEdge R720
and R720xd
Getting Started
Guide

System Setup program

System messages

System codes and indicators

System BIOS

Remove and replace procedures

Troubleshooting

Diagnostics

Jumpers and connectors
This guide is printed and shipped with the system, and is
also available in PDF format on the Dell support site. This
guide provides information on the following:
 Initial setup steps

Key system features

Technical specifications
Support.Dell.com/Manuals
Rack Installation
Instructions
This printed document is provided with the rack kits. The
document provides the instructions for installing the
server in a rack.
Support.Dell.com/Manuals
Cable
Management Arm
Installation
Instructions
This printed document is provided with the rack kits. The
document provides the instructions for installing the
cable management arm on the rack.
Support.Dell.com/Manuals
System
Information Label
The system information label documents the system
board layout and system jumper settings.
Inside the system chassis
Quick Resource
Locator (QRL)
code
This code can be scanned by a phone application to
access additional information and resources for the
server, including videos, reference materials, service tag
information, and Dell contact information.
Inside the system chassis
Information
Update
This document provides updated system information and
is printed and shipped with the system. It is also available
in PDF format on the Dell support site.
Support.Dell.com/Manuals
57
PowerEdge R720 and R720xd Technical Guide
Resource
Description of contents
Location
Dell Energy Smart
Data Center
Assessment
uses infrastructure and thermal analysis to help maximize
system efficiency
Dell.com/EnergySmart
Energy Smart
Solution Advisor
(ESSA)
The Dell online advisor console enables easier and more
meaningful estimates to help you determine the most
efficient configuration possible. With Dell’s, you can
calculate the power consumption of your hardware,
power infrastructure, and storage.
Dell.com/ESSA
Power and
cooling
technologies
Provides details for improving energy efficiency in the
data center.
Dell.com/PNC
Energy
management
Provides information on Dell’s fresh air solutions.
Dell.com/FreshAir
Operating system
matrix for Dell
PowerEdge
systems
Provides updated information on which operating
systems are available on which PowerEdge systems.
Dell.com/OSsupport
Processor and
chipset
Provides more information about the R620 processors
and chipset.
Intel.com
Dell PowerEdge
RAID controllers
Provides more information on Dell PowerEdge RAID
controllers (PERC).
Dell.com/PERC
Power distribution
unit (PDU)
Provides help selecting a power distribution unit (PDU).
DellPDU.com
Uninterruptible
power supply
(UPS)
Provides help selecting an uninterruptible power supply
(UPS) model.
DellUPS.com
Dell Enterprise
Acoustics
White paper that explores the mechanisms of, people’s
reaction to, language of, and Dell’s work to control noise
from Enterprise products.
www.dell.com/downloads/g
lobal/products/pedge/en/ac
oustical-education-dellenterprise-white-paper.pdf
Volatility
information
Contact your Dell Sales Representative.
58
PowerEdge R720 and R720xd Technical Guide