Supermicro SuperStorageSystem SSG-2028R-DN2R40L User manual

User's Manual
Revision 1.0
SuperStorageSystem
SSG-2028R-DN2R40L

iii
Preface
Preface
About This Manual
This manual is written for professional system integrators and PC technicians.
It provides information for the installation and use of the SSG-2028R-DN2R40L
SuperStorageSystem. Installation and maintenance for this system should be
performed by experienced technicians only.
The SuperStorageSystem SSG-2028R-DN2R40L is a high-end server based on the
SC227STS-R2K05P 2U rackmount chassis and the dual processor X10DSN-TS
serverboard. It has two serverboard nodes, and forty (40) hot-swap 2.5" NVMe
drives.
Manual Organization
Chapter 1: Introduction
The rst chapter provides a checklist of the main components included with the
server system and describes the main features of the X10DSN-TS serverboard and
the SC227STS-R2K05P chassis.
Chapter 2: Server Installation
This chapter describes the steps necessary to install the SuperStorageSystem
SSG-2028R-DN2R40L into a rack and check out the server conguration prior to
powering up the system. If your server was ordered without processor and memory
components, this chapter will refer you to the appropriate sections of the manual
for their installation.
Chapter 3: System Interface
Refer here for details on the system interface, which includes the functions and
information provided by the control panel on the chassis as well as other LEDs
located throughout the system.
Chapter 4: System Safety
You should thoroughly familiarize yourself with this chapter for a general overview
of safety precautions that should be followed when installing and servicing the
SUPERSTORAGESYSTEM SSG-2028R-DN2R40L.
Chapter 5: Advanced Serverboard Setup
Chapter 5 provides detailed information on the X10DSN-TS serverboard, including
the locations and functions of connections, headers and jumpers. Refer to
this chapter when adding or removing processors or main memory and when
reconguring the serverboard.
The information in this User’s Manual has been carefully reviewed and is believed to be accurate.
The vendor assumes no responsibility for any inaccuracies that may be contained in this document,
makes no commitment to update or to keep current the information in this manual, or to notify any
person or organization of the updates. Please Note: For the most up-to-date version of this
manual, please see our web site at www.supermicro.com.
Super Micro Computer, Inc. ("Supermicro") reserves the right to make changes to the product
described in this manual at any time and without notice. This product, including software and
documentation, is the property of Supermicro and/or its licensors, and is supplied only under a
license. Any use or reproduction of this product is not allowed, except as expressly permitted by
the terms of said license.
IN NO EVENT WILL SUPERMICRO BE LIABLE FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL,
SPECULATIVE OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OR INABILITY TO
USE THIS PRODUCT OR DOCUMENTATION, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES. IN PARTICULAR, SUPERMICRO SHALL NOT HAVE LIABILITY FOR ANY
HARDWARE, SOFTWARE, OR DATA STORED OR USED WITH THE PRODUCT, INCLUDING THE
COSTS OF REPAIRING, REPLACING, INTEGRATING, INSTALLING OR RECOVERING SUCH
HARDWARE, SOFTWARE, OR DATA.
Any disputes arising between manufacturer and customer shall be governed by the laws of Santa
Clara County in the State of California, USA. The State of California, County of Santa Clara shall
be the exclusive venue for the resolution of any such disputes. Super Micro's total liability for all
claims will not exceed the price paid for the hardware product.
FCC Statement: This equipment has been tested and found to comply with the limits for a Class
A digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the manufacturer’s instruction manual, may cause harmful
interference with radio communications. Operation of this equipment in a residential area is likely
to cause harmful interference, in which case you will be required to correct the interference at your
own expense.
California Best Management Practices Regulations for Perchlorate Materials: This Perchlorate
warning applies only to products containing CR (Manganese Dioxide) Lithium coin cells. “Perchlorate
Material-special handling may apply. See www.dtsc.ca.gov/hazardouswaste/perchlorate”
WARNING: Handling of lead solder materials used in this
product may expose you to lead, a chemical known to
the State of California to cause birth defects and other
reproductive harm.
Manual Revision 1.0
Release Date: July 27, 2017
Unless you request and receive written permission from Super Micro Computer, Inc., you may not
copy any part of this document.
Information in this document is subject to change without notice. Other products and companies
referred to herein are trademarks or registered trademarks of their respective companies or mark
holders.
Copyright © 2016 by Super Micro Computer, Inc.
All rights reserved.
Printed in the United States of America

Preface
vvi
Table of Contents
Chapter 1 Introduction
1-1 Overview ......................................................................................................... 1-1
1-2 Motherboard Features..................................................................................... 1-2
Processors ...................................................................................................... 1-2
Memory ........................................................................................................... 1-2
Serial ATA........................................................................................................ 1-2
PCI Expansion Slots ....................................................................................... 1-2
I/O Ports ......................................................................................................... 1-3
Graphics Controller ......................................................................................... 1-3
1-3 Server Chassis Features ................................................................................ 1-3
System Power................................................................................................. 1-3
NVMe Subsystem ........................................................................................... 1-3
Front Control Panel......................................................................................... 1-4
Cooling System............................................................................................... 1-4
Mounting Rails ................................................................................................ 1-4
1-4 ACPI Features................................................................................................. 1-4
Intel® Intelligent Power Node Manager (NM)................................................. 1-4
Manageability Engine (ME)............................................................................. 1-4
1-5 Contacting Supermicro.................................................................................... 1-6
1-6 System Notes.................................................................................................. 1-7
Nodes.............................................................................................................. 1-7
System Power................................................................................................. 1-7
NVMe Backplane/Drives ................................................................................. 1-7
Chapter 2 Server Installation
2-1 Overview ......................................................................................................... 2-1
2-2 Unpacking the System .................................................................................... 2-1
2-3 Preparing for Setup......................................................................................... 2-1
Choosing a Setup Location............................................................................. 2-2
2-4 Warnings and Precautions.............................................................................. 2-2
Rack Precautions............................................................................................ 2-2
Server Precautions.......................................................................................... 2-2
Rack Mounting Considerations ....................................................................... 2-3
Ambient Operating Temperature ................................................................ 2-3
Reduced Airow ......................................................................................... 2-3
Mechanical Loading ................................................................................... 2-3
Circuit Overloading..................................................................................... 2-3
SUPERSTORAGESYSTEM SSG-2028R-DN2R40L User's Manual
Chapter 6: Advanced Chassis Setup
Refer to Chapter 6 for detailed information on the SC227STS-R2K05P server
chassis. You should follow the procedures given in this chapter when installing,
removing or reconguring NVMe drives and when replacing system power supply
units and cooling fans.
Chapter 7: BIOS
The BIOS chapter includes an introduction to BIOS and provides detailed information
on running the CMOS Setup Utility.
Appendix A: BIOS Error Beep Codes
Appendix B: System Specications

vii
Reliable Ground ......................................................................................... 2-3
2-5 Installing the System into a Rack ................................................................... 2-4
Identifying the Sections of the Rack Rails...................................................... 2-4
Releasing the Inner Rail ................................................................................. 2-5
Installing The Inner Rails on the Chassis ...................................................... 2-6
Installing the Outer Rails on the Rack............................................................ 2-7
Installing into the Rack.................................................................................... 2-8
Removing the Chassis From the Rack........................................................... 2-9
Removing the Outer Rails From the Rack.................................................... 2-10
2-6 Installing the Cable Management Arm ..........................................................2-11
Chapter 3 System Interface
3-1 Overview ......................................................................................................... 3-1
Power .............................................................................................................. 3-2
3-3 Control Panel LEDs ........................................................................................ 3-2
Power .............................................................................................................. 3-2
Heartbeat......................................................................................................... 3-2
NIC1 ................................................................................................................ 3-2
3-2 Control Panel Button....................................................................................... 3-2
NIC2 ................................................................................................................ 3-3
Power Fail ....................................................................................................... 3-3
Overheat/Fan Fail: .......................................................................................... 3-3
3-4 Drive Carrier LEDs.......................................................................................... 3-4
Chapter 4 Standardized Warning Statements for AC Systems
4-1 About Standardized Warning Statements....................................................... 4-1
Warning Denition ........................................................................................... 4-1
Installation Instructions.................................................................................... 4-4
Circuit Breaker ................................................................................................ 4-5
Power Disconnection Warning ........................................................................ 4-6
Equipment Installation..................................................................................... 4-8
Restricted Area................................................................................................ 4-9
Battery Handling............................................................................................ 4-10
Redundant Power Supplies .......................................................................... 4-12
Backplane Voltage ........................................................................................ 4-13
Comply with Local and National Electrical Codes........................................ 4-14
Product Disposal........................................................................................... 4-15
Hot Swap Fan Warning................................................................................. 4-16
Power Cable and AC Adapter ...................................................................... 4-18
Table of Contents
viii
Chapter 5 Advanced Motherboard Setup
5-1 Handling the Motherboard .............................................................................. 5-1
Precautions ..................................................................................................... 5-1
Unpacking ....................................................................................................... 5-1
5-2 Connecting Cables.......................................................................................... 5-2
Connecting Data Cables ................................................................................. 5-2
5-3 Control Panel Connectors and I/O Ports ........................................................ 5-2
5-4 Processor and Heatsink Installation................................................................ 5-3
Installing a Passive CPU Heatsink ................................................................. 5-7
Removing the CPU and the Heatsink............................................................. 5-8
5-5 Installing Memory............................................................................................ 5-9
Installing & Removing DIMMs......................................................................... 5-9
Removing Memory Modules ......................................................................... 5-10
Memory Support............................................................................................ 5-10
Maximum Memory......................................................................................... 5-10
5-6 Adding PCI Expansion Cards ....................................................................... 5-12
5-7 Motherboard Details...................................................................................... 5-13
5-8 Connector Denitions.................................................................................... 5-15
5-9 Jumper Settings ............................................................................................ 5-17
Explanation of Jumpers ................................................................................ 5-17
5-10 Onboard Indicators........................................................................................ 5-19
5-11 Serial ATA Connections................................................................................. 5-20
5-12 Installing Drivers............................................................................................ 5-21
SuperDoctor 5............................................................................................... 5-22
5-13 Serverboard Battery ...................................................................................... 5-24
Chapter 6 Advanced Chassis Setup
6-1 Static-Sensitive Devices.................................................................................. 6-1
Precautions ..................................................................................................... 6-1
Unpacking ....................................................................................................... 6-1
6-2 Control Panel .................................................................................................. 6-3
6-3 Removing the Power Cord.............................................................................. 6-3
6-4 Removing the Front Cover.............................................................................. 6-4
6-5 Removing the Rear Cover .............................................................................. 6-5
6-6 Installing Hard Drives...................................................................................... 6-6
6-7 Motherboard Installation.................................................................................. 6-8
Removing the Motherboard Modules.............................................................. 6-8
Motherboard Installation.................................................................................. 6-9
Permanent and Optional Standoffs............................................................... 6-10
SUPERSTORAGESYSTEM SSG-2028R-DN2R40L User's Manual

ix
6-8 Installing the Expansion Cards ......................................................................6-11
Installing Expansion Cards ............................................................................6-11
6-9 Changing the Power Supplies....................................................................... 6-12
6-10 Power Distributor Board ............................................................................... 6-13
6-11 System Fans ................................................................................................. 6-14
6-12 Removing and Installing the Backplanes...................................................... 6-15
Removing the First and Second Backplanes................................................ 6-15
Installing the First and Second Backplanes.................................................. 6-16
6-13 Removing and Installing the Midplane.......................................................... 6-17
Removing the Midplane ................................................................................ 6-17
Installing the Midplane .................................................................................. 6-18
Chapter 7 BIOS
7-1 Introduction...................................................................................................... 7-1
Starting BIOS Setup Utility.............................................................................. 7-1
How To Change the Conguration Data ......................................................... 7-1
How to Start the Setup Utility ......................................................................... 7-2
7-2 Main Setup...................................................................................................... 7-2
7-3 Advanced Setup Congurations...................................................................... 7-4
4-4 Event Logs .................................................................................................... 7-31
4-5 IPMI............................................................................................................... 7-33
4-6 Security Settings ........................................................................................... 7-35
4-7 Boot Settings................................................................................................. 7-38
4-8 Save & Exit ................................................................................................... 7-40
Appendix A BIOS POST Error Codes
Appendix B System Specications
Table of Contents

Chapter 1
Introduction
1-1 Overview
The SSG-2028R-DN2R40L is a high-end Super Storage Bridge Bay (SBB) system
comprises the SC227STS-R2K05P chassis, its components and the X10DSN-TS
serverboard in each of its two nodes.
In addition to the chassis, various hardware components have been included with
the SSG-2028R-DN2R40L, as listed below. Quantities indicate the number included
in the whole system.
• Four (4) 1U passive CPU heatsinks (SNK-P0047PS)
• Five (5) 8-cm midplane cooling fans (FAN-0168L4)
• Four (4) 4-cm node counter-rotating fans (FAN-0167L4)
• NVMe Accessories:
• One (1) Midplane for power distribution and PCI-E pass-through
(BPN-NVME3-227SSB)
• Two (2) NVMe base boards (BPN-NVMe3-227SNB)
• Four (4) NVMe PLX Gen 3 PCI-E switch daughter boards
(BPN-NVMe3-227SNL)
• Eight (8) 2.5" hard disk drive carriers (MCP-220-00047-0B)
• Forty (40) 2.5" NVMe HDD carriers (MCP-220-00121-0B)
• Eight (8) 55-cm 34AWG OCuLink PCI-E NVMe SSD cables
(CBL-SAST-0818)
• Four (4) 65-cm 34AWG OCuLink PCIe NVMe SSD cables
(CBL-SAST-0819)
Four (4) 85-cm 34AWG OCuLink PCIe NVMe SSD cables
(CBL-SAST-0820)
• Two (2) 1U storage riser cards (RSC-X-68-C)
• One (1) set of auto-latch rail set hardware (MCP-290-00139-0N)
Note: For your system to work properly, please follow the links below to download
all necessary drivers/utilities and the user’s manual for your server.
• Supermicro product manuals: http://www.supermicro.com/support/manuals/
• Product drivers and utilities: ftp://ftp.supermicro.com
Chapter 1: Introduction
1-1

Chapter 1: IntroductionSUPERSTORAGESYSTEM SSG-2028R-DN2R40L User's Manual
1-2 1-3
• Product safety info: http://www.supermicro.com/about/policies/safety_
information.cfm
• If you have any questions, please contact our support team at:
[email protected]
1-2 Motherboard Features
At the heart of the SuperStorageSystem SSG-2028R-DN2R40L is the X10DSN-TS,
a dual processor motherboard based on the C612 chipset. Below are the main
features of the system (See Figure 1-1 for a block diagram of the motherboard).
Processors
The motherboard supports dual E5-2600 v3/v4 series processors in two Socket
R3-LGA 2011 sockets. Please refer to the motherboard description pages on
the Supermicro web site for a complete listing of supported processors (www.
supermicro.com).
Memory
The motherboard has sixteen (16) DIMM slots that can
support up to 1 TB RDIMM or 2 TB 3DS LRDIMM of
DDR4 (288-pin) ECC 2400/2133/1866/1600 MHz speed memory at 1.2v
voltage. Modules of the same size and speed are recommended. DIMM sizes
of 4 GB, 8 GB, 16 GB, 32 GB, 64 GB, 128 GB (3DS LRDIMM only) size are
supported See Chapter 5 for details.
Serial ATA
Two (2) SATA 3.0 connectors that support Super DOMs (with power pins built-in)
(S-SATA 0/1). The system supports RAID 0, 1, 5 and 10. Note: The operating
system you use must have RAID support to enable the hot-swap capability and
RAID function.
PCI Expansion Slots
The motherboard has the following PCI-E slots available on the serverboard:
• One (1) PCI-Express 3.0 x16 low-prole slots
• One (1) PCI-Express 3.0 x8 low-prole slots
• One (1) SIOM slot
I/O Ports
The rear I/O LAN ports include: one Intel X540 10-Gigabit Ethernet Dual-Channel
Controller for 10G-LAN (TLAN) 1/10G-LAN (TLAN) and one IPMI-dedicated LAN
supported by the ASpeed AST2400 BMC
Two (2) USB 3.0 ports on the rear I/O panel (USB 0/1) and one (1) Type A USB 3.0
connector for front access (USB 2) are provided. Additionally, one (1) VGA connector
and one (1) serial header on the serverboard are available.
Graphics Controller
The X10DSN-TS features an integrated ASpeed 2400 BMC Video Controller.
Notes:
Note 1: The CPU maximum thermal design power (TDP) is subject to chassis
and heatsink cooling restrictions. For proper thermal management, please check
the chassis and heatsink specications for proper CPU TDP sizing.
Note 2: For IPMI conguration instructions, please refer to the Embedded IPMI
Conguration User's Guide available at http://www.supermicro.com/support/
manuals/.
Note 3: It is strongly recommended that you change BMC log-in information upon
initial system power-on. The manufacture default username is ADMIN and the
password is ADMIN. For proper BMC conguration, please refer to http://www.
supermicro.com/products/info/les/IPMI/Best_Practices_BMC_Security.pdf.
1-3 Server Chassis Features
System Power
The SSG-2028R-DN2R40L SuperStorageSystem features a redundant Titanium
Level 2000 Watt power supply composed of two separate power modules. This
power redundancy feature allows you to replace a failed power module without
shutting down the system.
NVMe Subsystem
The SSG-2028R-DN2R40L SuperStorageSystem supports up to 40 2.5" dual
port NVMe drives. These drives are hot-swappable units and are connected to a
midplane that provides power and control.

Chapter 1: IntroductionSUPERSTORAGESYSTEM SSG-2028R-DN2R40L User's Manual
1-4 1-5
Front Control Panel
Two control panels are included on each end of the SSG-2028R-DN2R40L
SuperStorageSystem to provide you with system monitoring and control. LEDs
indicate system power, network (NIC) activity, system overheat and power supply
failure. Each set of LEDs are associated with the node/serverboard on the same
side of the chassis. A single power button is located on the left side control panel.
When pressed, both nodes will power on or off according to the BIOS setup settings.
Cooling System
The SC227STS-R2K05P chassis has ve (5) 8-cm behind the HDD backplane and
two (2) 4-cm counter-rotating fans at the rear of each node. This counter-rotating
action works to dampen vibration levels while generating exceptional airow.
Each power supply module also includes a cooling fan.
Mounting Rails
The SC227 includes a set of rails, and can be placed in a rack for secure storage
and use. To setup your rack, follow the step-by-step instructions included in this
manual in Chapter 2.
1-4 ACPI Features
Intel® Intelligent Power Node Manager (NM)
The Intel® Intelligent Power Node Manager (IPNM) provides your system with
real-time thermal control and power management for maximum energy efciency.
Although IPNM Specication Version 1.5 is supported by the BMC (Baseboard
Management Controller), your system must also have IPNM-Compatible
Manageability Engine (ME) rmware installed to use this feature.
Manageability Engine (ME)
The Manageability Engine, which is an ARC controller embedded in the IOH (I/O
Hub), provides Server Platform Services (SPS) to your system. The services
provided by SPS are different from those provided by the ME on client platforms.
Figure 1-1. C612 Chipset Block Diagram
SPI
RGMII
Debug Card
SYSTEM POWER
CTRL
FAN SPEED
PCI-E X1
G2
USB 2.0
#6/7 USB2.0
PCH
6.0 Gb/S
USB 3.0
LPC
USB
#1
#0
SATA
BIOS
SPI
SPI
Temp Sensor
EMC1402-1 *2 at diff SMBUS
TPM HEADER
USB 3.0
USB
BIOS
HEADER
SPI
AST2400
BMC
#5
COM1
Header
VGA Header
BMC Boot
Flash
DDR3
1333/2133
P1
P1
P0
P0
#2-1
DDR4
QPI
9.6G
CPU0
PCI-E X16 G3
DMI2
PCI-E X16 G3
PCI-E X4 G3
DMI2
CPU1
SNB CORE
DDR4
SNB CORE
DDR4
QPI
9.6G
4GB/s
PCI-E X4 G3 PCI-E X16 G3
PCI-E X16 G3
PCI-E X8 G3
#2-2
#2-3
#2-4
#2-5
#2-6
#2-7
#2-8
PVCCIO
(1.05/0.95)
from 3.3v
REAR IO
SIOMLUIO
LAN
X540
XL710
HB
#0
#1
Type-A
Mux
RMII/NCSI
LAN3
RTL8211E
-VB-CG
Rear RJ45
LAN4
RTL8211E
-VB-CG
IPMI
LAN
SWITCH GPIOH6
Rear RJ45
SHARED
LAN
MAC1MAC2
BMC
HB
X86 HB
COM1COM2
LUIO
LPC
Midplane
#3 #2 #1A#1B DMI2
#3 #2 #1
1333/2133
#1-1
DDR4
#1-2
#1-3
#1-4
#1-5
#1-6
#1-7
#1-8
Notes:
Note 1: This is a general block diagram and may not exactly represent the
features on your motherboard. See the Motherboard Features pages for the
actual specications of each motherboard.
Note 2: Both CPUs need to be installed for full access to the PCI-E slots, DIMM
slots, and onboard controllers. Refer to the block diagram above to determine
which slots or devices may be affected.

Chapter 1: IntroductionSUPERSTORAGESYSTEM SSG-2028R-DN2R40L User's Manual
1-6 1-7
1-5 Contacting Supermicro
Headquarters
Address: Super Micro Computer, Inc.
980 Rock Ave.
San Jose, CA 95131 U.S.A.
Tel: [phone]
Fax: [phone]
Email: [email protected] (General Information)
[email protected] (Technical Support)
Website: www.supermicro.com
Europe
Address: Super Micro Computer B.V.
Het Sterrenbeeld 28, 5215 ML
's-Hertogenbosch, The Netherlands
Tel: [phone]
Fax: [phone]
Email: [email protected] (General Information)
[email protected] (Technical Support)
[email protected] (Customer Support)
Website: www.supermicro.nl
Asia-Pacic
Address: Super Micro Computer, Inc.
3F, No. 150, Jian 1st Rd.
Zhonghe Dist., New Taipei City 235
Taiwan (R.O.C)
Tel: [phone]
Fax: [phone]
Email: [email protected]
Website: www.supermicro.com.tw
1-6 System Notes
The SSG-2028R-DN2R40L Super SBB was designed to function as a fully
redundant, fault-tolerant "cluster-in-a-box" system with hot-swappable nodes for all
active components.
Nodes
The SSG-2028R-DN2R40L features a dedicated B2B connection using an Intel
XL710 private LAN connecting the bottom server module with the top server
module. This connection is used for high speed data transfers between nodes for
High Availability/server fail-over. This fail-over capability is fully dependent on the
software/OS installed and how the chosen software uses the connection (Active-
Active or Active-Passive). The SSG-2028R-DN2R40L hardware is supplied without
a storage OS or fail-over software.
Equipped with 2000 Watt 80+ Titanium Level redundant power supplies and
redundant cooling fans, the SSG-2028R-DN2R40L offers fully redundant, high
availability while maintaining energy efcient operation.
Note: A guide pin is located between the upper and lower nodes on the inner chassis
wall. This guide pin also acts as a “stop” when a node is fully installed.
System Power
Dual 2000 Watt power supplies are used to provide the power for all serverboards.
Each serverboard however, can be shut down independently of the other with the
power button on its own control panel.
NVMe Backplane/Drives
As a system, the SuperStorageSystem SSG-2028R-DN2R40L supports the use of
forty (40) 2.5" NVMe drives. The NVMe backplane works to apply system-based
control for power and fan speed functions. See the Drive Bay Installation/Removal
section in Chapter 6 for the logical hard drive and node conguration.

Chapter 2: Server Installation
2-1
Chapter 2
Server Installation
2-1 Overview
This chapter provides a quick setup checklist to get your SSG-2028R-DN2R40L up
and running. Following these steps in the order given should enable you to have
the system operational within a minimum amount of time. This quick setup assumes
that your system has come to you with the processors and memory preinstalled. If
your system is not already fully integrated with a serverboard, processors, system
memory etc., then please turn to the chapter or section noted in each step for details
on installing specic components.
2-2 Unpacking the System
You should inspect the box the SSG-2028R-DN2R40L was shipped in and note
if it was damaged in any way. If the server itself shows damage you should le a
damage claim with the carrier who delivered it.
Decide on a suitable location for the rack unit that will hold the SSG-2028R-DN2R40L.
It should be situated in a clean, dust-free area that is well ventilated. Avoid areas
where heat, electrical noise and electromagnetic elds are generated. You will also
need it placed near a grounded power outlet. Read the Rack and Server Precautions
in the next section.
2-3 Preparing for Setup
The box the SSG-2028R-DN2R40L was shipped in should include two sets of rail
assemblies, two rail mounting brackets and the mounting screws you will need to
install the system into the rack. Follow the steps in the order given to complete
the installation process in a minimum amount of time. Please read this section in
its entirety before you begin the installation procedure outlined in the sections that
follow.

Chapter 2: Server Installation
2-32-2
SUPERSTORAGESYSTEM SSG-2028R-DN2R40L User's Manual
Choosing a Setup Location
• Leave enough clearance in front of the rack to enable you to open the front door
completely (~25 inches) and approximately 30 inches of clearance in the back
of the rack to allow for sufcient airow and ease in servicing.
• This product is for installation only in a Restricted Access Location (dedicated
equipment rooms, service closets and the like).
• This product is not suitable for use with visual display work place devices
according to §2 of the German Ordinance for Work with Visual Display Units.
2-4 Warnings and Precautions
Rack Precautions
• Ensure that the leveling jacks on the bottom of the rack are fully extended to
the oor with the full weight of the rack resting on them.
• In single rack installation, stabilizers should be attached to the rack. In multiple
rack installations, the racks should be coupled together.
• Always make sure the rack is stable before extending a component from the
rack.
• You should extend only one component at a time - extending two or more
simultaneously may cause the rack to become unstable.
Server Precautions
• Review the electrical and general safety precautions in Chapter 4.
• Determine the placement of each component in the rack before you install the
rails.
• Install the heaviest server components on the bottom of the rack rst, and then
work up.
• Use a regulating uninterruptible power supply (UPS) to protect the server from
power surges, voltage spikes and to keep your system operating in case of a
power failure.
• Allow any hot plug drives and power supply modules to cool before touching
them.
• Always keep the rack's front door and all panels and components on the servers
closed when not servicing to maintain proper cooling.
Rack Mounting Considerations
Ambient Operating Temperature
If installed in a closed or multi-unit rack assembly, the ambient operating
temperature of the rack environment may be greater than the ambient temperature
of the room. Therefore, consideration should be given to installing the equipment
in an environment compatible with the manufacturer’s maximum rated ambient
temperature (Tmra).
Reduced Airow
Equipment should be mounted into a rack so that the amount of airow required
for safe operation is not compromised.
Mechanical Loading
Equipment should be mounted into a rack so that a hazardous condition does not
arise due to uneven mechanical loading.
Circuit Overloading
Consideration should be given to the connection of the equipment to the power
supply circuitry and the effect that any possible overloading of circuits might have
on overcurrent protection and power supply wiring. Appropriate consideration of
equipment nameplate ratings should be used when addressing this concern.
Reliable Ground
A reliable ground must be maintained at all times. To ensure this, the rack
itself should be grounded. Particular attention should be given to power supply
connections other than the direct connections to the branch circuit (i.e. the use of
power strips, etc.).
Warning! To prevent bodily injury when mounting or servicing this unit in a
rack, you must take special precautions to ensure that the system remains stable. The
following guidelines are provided to ensure your safety:
• This unit should be mounted at the bottom of the rack if it is the only unit in
the rack.
• When mounting this unit in a partially lled rack, load the rack from the bottom
to the top with the heaviest component at the bottom of the rack.

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• If the rack is provided with stabilizing devices, install the stabilizers before
mounting or servicing the unit in the rack.
2-5 Installing the System into a Rack
This section provides information on installing the SC227 chassis into a rack unit
with the quick-release rails provided. There are a variety of rack units on the market,
which may mean the assembly procedure will differ slightly. You should also refer to
the installation instructions that came with the rack unit you are using.
Note: This rail will t a rack between 26.5" and 36.4" deep.
Identifying the Sections of the Rack Rails
The chassis package includes two rail assemblies in the rack mounting kit. Each
assembly consists of three sections: An inner rail that secures directly to the chassis,
an outer rail that secures to the rack, and a middle rail that slides in the outer rail.
These assemblies are specically designed for the left and right side of the chassis.
Figure 2-1. Identifying the Inner Rails, Middle Rails and Outer Rails
Middle Rails,
Front
Outer Rails,
Rear
Right Outer
Rail
Left Outer
Rail
Inner Rails
Inner Rails
Releasing the Inner Rail
It is necessary to release the inner rail from the middle and outer rails before
installing the inner rail on the chassis.
Releasing the Inner Rail from the Middle and Outer Rails
1. Lift the front latch on the inner rail and pull the inner rail out of the middle rail,
and the middle rail out of the outer rail until the rails are fully extended.
2. Press down the locking lever on the inside of the inner rail to release the
inner rail. Continue to pull the inner rail out of the middle rail.
Figure 2-2. Extending the Rails and Releasing the Inner Rail
Middle Rail
Locking Lever
on Inner Rail
Outer Rail
Inner Rail
Front Latch
Front Latch on
Inner Rail
Locking Lever on
Middle Rail
(on inside of rail)

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Installing The Inner Rails on the Chassis
Installing the Inner Rails
1. Conrm that the left and right inner rails have been correctly identied.
2. Place the inner rail rmly against the side of the chassis, aligning the pins on
the side of the chassis with the slotted thru holes in the inner rail.
3. Slide the inner rail toward the rear of the chassis until the pins are at the end
of the narrow slot, which secures the inner rail to the chassis. An optional
screw may be added for extra security.
4. Repeat for the other inner rail.
Figure 2-3. Installing the Inner Rails
3
2
Warning: Do not pick up the server with the front handles. They are designed
to pull the system from a rack only.
Installing the Outer Rails on the Rack
Installing the Outer Rails
1. Conrm that the left and right outer rails have been correctly identied.
2. Release the small locking lever on the inside of the middle rail and push the
middle rail back into the outer rail.
3. Insert the square pins at the front of the outer rail into the square holes on
the front of the rack. Push until the latch snaps into place.
4. The outer rail is actually two pieces that slide to lengthen. Pull out the rear of
the outer rail, adjusting the length until the square pin assembly passes, then
ts against the back of the rear post. Be careful to keep the rail level.
5. Insert the square pins at the rear of the outer rail into the square holes on the
rear of the rack. Push until the latch snaps into place.
6. Repeat for the other outer rail.
Figure 2-4. Installing the Outer Rails
Locking Lever on
Middle Rail
Stability Hazard: The rack stabilizing mechanism must be in place, or the
rack must be bolted to the oor before you slide the unit out for servicing. Failure to
stabilize the rack can cause the rack to tip over.

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Figure 2-5. Installing the Chassis into the Rack
Installing into the Rack
After the rails are installed on the chassis and on the rack, the server can be installed
in the rack. It is heavy and requires two to three people to lift.
Installing the Chassis into a Rack
1. Pull both middle rails out the front of the outer rail until each clicks to a stop.
2. Align the inner rails on the chassis with the front of the middle rails.
3. Slide the inner rails on the chassis into the middle rails, keeping the pressure
even on both sides. When partially in, the locking levers will stop further
progress.
4. Press down the locking levers on the inside of the inner rails and push the
chassis all the way into the rear of the rack. The front latches will click into
place.
Note: Figures are for illustrative purposes only. Your actual chassis may differ.
Always install servers into racks from the bottom up.
The server is now mounted in the rack. It can be pulled partially out for service by
lifting both front latches.
1
3
Figure 2-6. Removing the Chassis
Removing the Chassis From the Rack
Caution: The server is heavy and requires two to three people to lift it out.
Removing the Chassis
1. Lift the right and left front latches which are just below the LED control panels
on the front edges of the chassis.
2. Pull the chassis forward until it clicks to a stop.
3. Press down the locking lever on the inside of the inner rail (Figure 2-2) to
release the server. Continue to pull the server out of the middle rails.
1
2
1

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Removing the Outer Rails From the Rack
In the uncommon event that it is necessary to remove the outer rails from the rack,
follow these instructions. The chassis must be out of the rack.
Releasing the Outer Rails
1. On the front of the outer rail, slide the small plastic safety slider (red in
drawing) up and hold it while pushing the plastic release button (green in
drawing) just below it.
2. While holding the release button in, pull the outer rail forward to disengage
the pins and the front of the rail from the rack.
3. Support the front of the outer and middle rail assembly while releasing the
rear.
4. Remove the outer rail from the rear of the rack in the same way as the front.
Slide the safety slider up and push and hold the release button, then pull the
rear pins out of the rack and remove the rail.
Figure 2-7. Removing the Outer Rails
Safety Slider
Release Button
Note: A small number of customers may have received a different outer rail than
the one pictured. This rail features side release latch on the front of the outer rail,
which opens inward to release the outer rail from the rack. Contact Supermicro's
Technical Support department if you need additional assistance.
Figure 2-8. Cable Management Arm and Velcro Straps
Figure 2-9. Installing the Connectors 1 and 2
2-6 Installing the Cable Management Arm
The SC227 chassis supports a cable management arm (CMA) that allows servicing
while the server is running. The CMA keeps the rear cables organized and clear of
the rail mechanisms when the system is extended out the front of the rack. The kit
includes six fabric Velcro cable ties.
The CMA attaches to the rack mounting rails by means of four connectors. They
are labeled on the connectors 1, 2, 3, and 4.
Installing the Cable Management Arm
1. Slide CMA connector #1 forward onto the two posts on the rear of the right
inner rail (right side when viewed from the front). It snaps into place.
2. Slide CMA connector #2 forward onto the two posts on the rear of the right
middle rail. It snaps into place.
1
21
1
Note: Example only--your
chassis will look different.

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Figure 2-10. Installing the Connectors 3 and 4
Figure 2-11. Routing the Cables
3. Slide CMA connector #3 forward onto the two posts on the rear of the left
middle rail. It snaps into place.
4. For CMA connector #4, align the metal tabs with the slots on the rear of the
left outer rail and push it forward. It snaps into place.
5. Open the six red plastic caps and route the cables into the wire carrier.
6. Use the six Velcro straps to secure the cables to the CMA. Use a strap on
either side of each joint and one on each connector.
7. Slide the chassis forward and backward in the rack to conrm that the cable
management arm is operating smoothly.
1
31
4
If at some time you must remove the cable management arm, follow this procedure.
Removing the Cable Management Arm
1. Remove cables from the CMA, releasing the Velcro straps and the red plastic
caps.
2. For CMA connector #4, pull the metal release tab toward the center of the
rack and slide the connector toward the rear to release it.
3. For CMA connectors #3, #2, and #1, depress the front edge of the yellow
plastic rocker lock, and slide the connector toward the rear to release it.

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Notes

Chapter 3: System Interface
3-1
Chapter 3
System Interface
3-1 Overview
There are several LEDs on two control panels as well as others on the drive carriers
to keep you constantly informed of the overall status of the system as well as the
activity and health of specic components. A main power button is also located on
the right side (only) control panel.
Figure 3-1. Control Panel

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1
2
Overheat/Fan Fail:
When this LED ashes, it indicates a fan failure. When on continuously it indicates
an overheat condition, which may be caused by cables obstructing the airow in
the system or the ambient room temperature being too warm. Check the routing of
the cables and make sure all fans are present and operating normally. You should
also check to make sure that the chassis covers are installed. Finally, verify that
the heatsinks are installed properly (see Chapter 5). This LED will remain ashing
or on as long as the indicated condition exists.
NIC1
Indicates network activity on the LAN1 port when ashing.
NIC2
Indicates network activity on the LAN2 port when ashing.
Heartbeat
On the SSG-2028R-DN2R40L, this is a serverboard heartbeat LED and indicates
that power is being supplied to the serverboard.
Power Fail
Indicates a power supply module has failed. The second power supply module will
take the load and keep the system running but the failed module will need to be
replaced. Refer to Chapter 6 for details on replacing the power supply. This LED
should be off when the system is operating normally.
Power
The single button located on the right control panel is the power on/off button.
Depressing this button will either power both nodes on or off. Turning off the system
power with this button removes the main power but keeps standby power supplied
to the system.
3-3 Control Panel LEDs
The two control panels located on the front of the chassis have several LEDs. With
the exception of the power fail LED, these LEDs provide you with critical information
related to the node on the same side of the chassis. This section explains what each
LED indicates when illuminated and any corrective action you may need to take.
Power
Indicates power is being supplied to the system's power supply units. This LED
should normally be illuminated when the system is operating.
3-2 Control Panel Button

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3-4 Drive Carrier LEDs
The chassis includes externally accessible NVMe drives. Each drive carrier displays
two status LEDs on the front of the carrier.
LED Color State Status
Activity LED Blue Solid On NVMe drive installed
Blue Blinking I/O activity
Status LED Red Solid On Failed drive for NVMe with RSTe
support
Red Blinking at 1 Hz Rebuild drive for NVMe with RSTe
support
Red Blinking with two blinks
and one stop at 1 Hz
Hot spare for NVMe with RSTe support
Red On for ve seconds,
then off
Power on for NVMe with RSTe support
Red Blinking at 4 Hz Identify drive for NVMe with RSTe
support
Green Solid On Safe to remove NVMe device
Amber Blinking at 1 Hz Attention state—do not remove NVMe
device