Supero SUPERSTORAGE 5048R-E1CR36L User manual

®
SUPERSTORAGE SYSTEM
5048R-E1CR36L
SUPER
USER’S MANUAL
1.0
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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 docu-
mentation, 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 environ-
ment. 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 warn-
ing 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 repro-
ductive harm.
Manual Revision 1.0
Release Date: August 5, 2014
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 © 2014 by Super Micro Computer, Inc.
All rights reserved.
Printed in the United States of America

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 5048R-E1CR36L. Installation
and maintainance should be performed by experienced technicians only.
The 5048R-E1CR36L is a high-end storage system based on the SC847BE1C-
R1K28LPB chassis and the X10SRH-CLN4F motherboard.
Manual Organization
Chapter 1: Introduction
The rst chapter provides a checklist of the main components included with the
system and describes the main features of the X10SRH-CLN4F motherboard and
the SC847BE1C-R1K28LPB chassis.
Chapter 2: Server Installation
This chapter describes the steps necessary to install the 5048R-E1CR36L 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: Standardized Warning Statements
You should thoroughly familiarize yourself with this chapter for a general overview
of safety precautions that should be followed when installing and servicing the
5048R-E1CR36L.

SUPERSTORAGESYSTEM 5048R-E1CR36L User's Manual
iv
Chapter 5: Advanced Motherboard Setup
Chapter 5 provides detailed information on the X10SRH-CLN4F motherboard,
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 motherboard.
Chapter 6: Advanced Chassis Setup
Refer to Chapter 6 for detailed information on the SC847BE1C-R1K28LPB chassis.
You should follow the procedures given in this chapter when installing, removing or
reconguring SATA or peripheral 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 informa-
tion on running the CMOS Setup Utility.
Appendix A: BIOS Error Beep Codes
Appendix B: System Specications

Notes
Preface
v

vi
Table of Contents
Chapter 1 Introduction
1-1 Overview ......................................................................................................... 1-1
1-2 Motherboard Features..................................................................................... 1-2
Processors ...................................................................................................... 1-2
Memory ........................................................................................................... 1-2
SATA................................................................................................................ 1-2
SAS ................................................................................................................. 1-2
I/O Ports.......................................................................................................... 1-2
PCI Expansion Slots ....................................................................................... 1-2
Onboard Graphics........................................................................................... 1-3
1-3 Server Chassis Features ................................................................................ 1-3
System Power................................................................................................. 1-3
Hard Drives ..................................................................................................... 1-3
Front Control Panel......................................................................................... 1-3
Cooling System............................................................................................... 1-3
1-4 Contacting Supermicro.................................................................................... 1-6
Chapter 2 erver Installation
2-1 Overview ......................................................................................................... 2-1
2-2 Unpacking the System .................................................................................... 2-1
2-3 Preparing for Setup......................................................................................... 2-1
Choosing a Setup Location............................................................................. 2-1
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
Reliable Ground ......................................................................................... 2-3
2-4 Rack Mounting Instructions............................................................................. 2-4
Rack Rails Assembly ...................................................................................... 2-4
Identifying the Inner Rack Rails...................................................................... 2-4
Installing the Inner Rails on the Chassis ........................................................ 2-5
Installing the Outer Rails onto a Rack............................................................ 2-6
Installing the Chassis into a Rack................................................................... 2-8
SUPERSTORAGESYSTEM 5048R-E1CR36L User's Manual

vii
Chapter 3 System Interface
3-1 Overview ......................................................................................................... 3-1
3-2 Control Panel Buttons ..................................................................................... 3-1
Reset............................................................................................................... 3-1
Power .............................................................................................................. 3-1
3-3 Control Panel LEDs ........................................................................................ 3-2
Power Fail ....................................................................................................... 3-2
Overheat/Fan Fail ........................................................................................... 3-2
NIC1 ................................................................................................................ 3-2
NIC2 ................................................................................................................ 3-3
HDD................................................................................................................. 3-3
Power .............................................................................................................. 3-3
3-4 Drive Carrier LEDs.......................................................................................... 3-3
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
Chapter 5 Advanced Motherboard Setup
5-1 Handling the Motherboard .............................................................................. 5-1
Precautions ..................................................................................................... 5-1
Unpacking ....................................................................................................... 5-1
5-2 Processor and Heatsink Installation................................................................ 5-2
Installing an LGA 2011 Processor................................................................... 5-2
Installing an Active CPU Heatsink .................................................................. 5-5
Removing the Heatsink................................................................................... 5-5
5-3 Connecting Cables.......................................................................................... 5-6
Connecting Data Cables ................................................................................. 5-6
Table of Contents

viii
Connecting Power Cables .............................................................................. 5-6
Connecting the Control Panel......................................................................... 5-6
5-4 I/O Ports.......................................................................................................... 5-7
5-5 Installing Memory............................................................................................ 5-8
5-6 Installing Add-on Cards................................................................................. 5-10
5-7 Motherboard Details.......................................................................................5-11
X10SRH-CLN4F Quick Reference.................................................................5-11
5-8 Connector Denitions.................................................................................... 5-13
5-9 Jumper Settings ............................................................................................ 5-20
5-10 Onboard Indicators........................................................................................ 5-22
5-11 SATA Drive Ports........................................................................................... 5-23
5-12 Installing Software......................................................................................... 5-24
SuperDoctor® 5 ............................................................................................ 5-25
5-13 Onboard Battery............................................................................................ 5-26
Chapter 6 Advanced Chassis Setup
6-1 Static-Sensitive Devices.................................................................................. 6-1
Precautions ..................................................................................................... 6-1
Unpacking ....................................................................................................... 6-1
6-2 Control Panel .................................................................................................. 6-2
6-3 Removing the Chassis Cover ......................................................................... 6-3
6-4 System Fans ................................................................................................... 6-4
System Fan Failure......................................................................................... 6-4
Replacing System Fans .................................................................................. 6-4
6-5 Drive Bay Installation/Removal ....................................................................... 6-5
Accessing the Drive Bays ............................................................................... 6-5
SATA/SAS Drive Installation ........................................................................... 6-6
Hard Drive Backplane ................................................................................ 6-7
Removing the Air Shroud................................................................................ 6-8
6-6 Installing Optional Fixed Hard Drives ............................................................ 6-9
6-7 Power Supply................................................................................................ 6-10
Power Supply Failure.................................................................................... 6-10
DC Power.......................................................................................................6-11
6-8 Attaching a JBOD Expansion Chassis...........................................................6-11
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
SUPERSTORAGESYSTEM 5048R-E1CR36L User's Manual

ix
7-2 Main Setup...................................................................................................... 7-2
7-3 Advanced Setup Congurations...................................................................... 7-4
7-4 Event Logs .................................................................................................... 7-34
7-5 IPMI............................................................................................................... 7-36
7-6 Security Settings ........................................................................................... 7-38
7-7 Boot Settings................................................................................................. 7-39
7-8 Save & Exit ................................................................................................... 7-42
Appendix A BIOS Error Beep Codes
Appendix B System Specications
Table of Contents

SUPERSTORAGESYSTEM 5048R-E1CR36L User's Manual
Notes
x

Chapter 1
Introduction
1-1 Overview
The 5048R-E1CR36L is a high-end storage system comprised of two main subsys-
tems: the SC847BE1C-R1K28LPB 4U/rackmount chassis and the X10SRH-CLN4F
motherboard. Please refer to our web site for information on operating systems that
have been certied for use with the system (www.supermicro.com).
In addition to the motherboard and chassis, various hardware components have
been included with the 5048R-E1CR36L, as listed below:
•One active CPU heatsink (SNK-P0048AP4)
•Seven 8-cm system fans (FAN-0126L4)
•One air shroud (MCP-310-49004-0N)
•SATA Accessories
Two SATA backplanes (BPN-SAS3-826EL1, BPN-SAS3-846EL1)
Thirty-six drive carriers (MCP-220-00075-0B)
•One rackmount kit (MCP-290-00057-0N)
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
•Product safety info: http://super-dev/about/policies/safety_information.cfm
•If you have any questions, please contact our support team at:
[email protected]
Chapter 1: Introduction
1-1

1-2
SUPERSTORAGESYSTEM 5048R-E1CR36L User's Manual
1-2 Motherboard Features
The 5048R-E1CR36L is built around the X10SRH-CLN4F, a single processor moth-
erboard based on Intel's C612 Express chipset. Below are the main features of the
X10SRH-CLN4F (see Figure 1-1 for a block diagram of the chipset).
Processors
The X10SRH-CLN4F supports an Intel®E5-2600 v3 processor in an LGA 2011
socket (R3 Socket). Please refer to the motherboard description pages on our web
site for a complete listing of supported processors.
Memory
The X10SRH-CLN4F has eight DIMM sockets that can support up to 256 GB of
RDIMM (registered DIMM) or 512 GB of load-reduced DIMMs (LRDIMMs) DDR4-
1866/1600/1333/1066/800 memory. Please refer to Chapter 5 for installing memory.
SATA
An on-chip SATA controller is integrated into the X10SRH-CLN4F to provide ten
SATA 3.0 ports, which are RAID 0, 1 and 10 supported. The SATA drives are
hot-swappable units.
SAS
SAS is provided by a built-in LSI 3008 SAS controller, which supports eight SAS
3.0 connections. The SAS drives are hot-swappable units.
I/O Ports
The rear I/O ports include one COM port, a VGA (monitor) port, two USB 3.0 ports,
two USB 2.0 ports and four gigabit Ethernet ports. A dedicated IPMI LAN port is
also included.
PCI Expansion Slots
The X10SRH-CLN4F features one PCI-Express 2.0 x2 (in a x4 slot), one PCI-
Express 2.0 x4 (in a x8 slot), one PCI-Express 3.0 x4 (in a x8 slot), one PCI-Express
3.0 x8 (in a x16 slot), and two PCI-Express 3.0 x8 slots.

1-3
Chapter 1: Introduction
Onboard Graphics
The X10SRH-CLN4F provides onboard grpahics with a AST 2400 graphics control-
ler.
1-3 Server Chassis Features
The SC847BE1C-R1K28LPB is a 4U form factor chassis designed to be used in
a storage conguration. The following is a general outline of the main features of
the chassis.
System Power
The SC847BE1C-R1K28LPB features a redundant (two separate power modules)
1280W high-efciency power supply with I2C. This power redundancy feature allows
you to replace a failed power supply without shutting down the system.
Hard Drives
The SC847BE1C-R1K28LPB chassis was designed to support 36 dual-channel
SATA/SAS hard drives (24 on the front of the chassis and 12 located on the rear
of the chassis), which are hot-swappable units.
Front Control Panel
The control panel on the front of the chassis provides you with system monitoring
and control. LEDs indicate system power, HDD activity, network activity, system
overheat/fan fail and power supply failure. A main power button and a system reset
button are also included. In addition, two USB ports and a COM port have been
incorporated into the front of the chassis for convenient access.
Cooling System
The SC847BE1C-R1K28LPB chassis includes seven 8-cm hot-plug system cooling
fans located in the middle section of the chassis. An air shroud channels the airow
from the system fans to efciently cool the processors and memory. Two additional
8-cm fans are located at the back of the chassis to expel hot air from the system.
Each power supply module also includes a cooling fan.

1-4
SUPERSTORAGESYSTEM 5048R-E1CR36L User's Manual
Figure 1-1. Intel C612 Express Chipset:
System Block Diagram
Note: This is a general block diagram. Please see Chapter 5 for details.
SPI
LAN3
RGRMII
Debug Card
FRONT PANEL
SYSTEM POWER
CTRL
FAN SPEED
PCI-E X1 Gen2
USB 2.0
13 (USB2.0)
1/2/3/4
PCH
Wellsburg
6.0 Gb/S
USB 2.0
LPC
USB
1
0
SATA
5
4
RTL8211E-VB-CG
3
2
RJ45
BIOS
SPI
SPI
Temp Sensor
EMC1402-1 *2 at diff SMBUS
TPM HEADER
USB 3.0
USB
AST2400
BMC
5/6
7
RMII / NCSI
COM1
Connector
COM2
Header
VGA CONN
BMC BootFlash
DDR3
5 PHASE
145W
VR12.5
Haswell
PCI-E X8 Gen3
DMI2
PCI-E X8 Gen3
PCI-E X8 Gen3
DMI2
Skt-R3
LGA2011-3
3A
i350
LAN
PCI-E X4 Gen2
C2
A2A1
6789
1333/1600/2133
0-4
0-3
0-2
0-1
DDRIV
1333/1600/2133
DDRIV
0-8
0-7
0-6
0-5
3D
PCIe3.0 x8SLOT4
LSI SAS3008
PCI-E X8 Gen3
PCIe3.0 X16
( X8 in X16 )SLOT6
SLOT2
PCIe2.0 x8
(x4 in x8)
PCI-E X4 Gen2
PCI-E X2 Gen2
SLOT3
PCIe2.0 x4
(x2 in x4)
1
2
5
6
01234567
RJ45
RJ45
PCI-E X4 Gen3
PCIe3.0 X8
( X4 in X8 )SLOT7
3C
MINI SAS HD
MINI SAS HD
9
10
11
12
PCIe3.0 x8
SLOT5
MUX

1-5
Chapter 1: Introduction
Figure 1-2. X10SRH-CLN4F Motherboard
DESIGNED IN USA
1.00REV:
X10SRH-CF
SAS CODE
1
BIOS
LICENSE
IPMI CODE
MAC CODE
BAR CODE
321
123
PCH SLOT2 PCI-E 2.0 X4(IN X8)
LGA2011-3 1
1
PCH
C610
i350
LSI
3008
BMC
BIOS
SP1
I-SATA5
S-SATA2S-SATA1
S-SATA0
I-SATA3I-SATA2
I-SATA1I-SATA0
I-SATA4
S-SATA3
JSTBY1
JPI2C1
FANA
FAN3
FAN2 FA N1
FAN4
FANB
FANC
FAN5
BT1
JBT1
LEDM1
LE2
LE1 JUIDB1
JPWR1
JP4
JIPMB1
JSD2
JSD1
JVR1
JPL1
JVRM1
JVRM2
JBR1
JI2C1
JI2C2
JPB1
JPG1
JWD1
JPME2
JPS1
T-SGPIO3 T-SGPIO2 T-SGPIO1
J23
JD1
JF1
JTPM1
LEDS1
JF2
J33
JOH1 JL1
JPSAS1
J24
SATA DOM
+
POWER
+
POWERSATA DOM
UID-LED
X
LED
2-3:DISABLE
1-2:ENABLE
JPS1:SAS 1-2:ENABLE
2-3:DISABLE
LAN2/LAN4
L-SAS4-7 L-SAS0-3
1-2:ENABLE
2-3:DISABLE
JPB1:BMC
CPU
CPU SLOT6 PCI-E 3.0 X8(IN X16)
CPU SLOT5 PCI-E 3.0 X8
CPU SLOT4 PCI-E 3.0 X8
PCH SLOT3 PCI-E 2.0 X2(IN X4)
JPME2
2-3:MEMANU FACTURING MODE
1-2:Normal
USB0/1
DIMMC2
PWRLED1-3:
JD1:
SPEAKER4-7:
JBR1
1-2:Normal
2-3:BIOSrecove ry
:TPM/PRO80
CHASSIS
INTRUSION
USB8/9
JF1
USB6/7
LED
NMI
PWR
X
USB2/3(3.0)
HDD
NIC
1
JWD1:WatchDog
1-2:RST
2-3:NMI
DIMMA2 DIMMA1
USB10(3.0)
FF
2
NIC
OH
LAN1/LAN3
RST
PWR
USB4/5
ON
1-2:ENABLE
2-3:DISABLE
JPG1:VGA
JI2C1/JI2C2
I2Cbus for PCI-E slot
CPU SLOT7 PCI-E 3.0 X4(IN X8)
COM2
COM1
DIMMB1
DIMMD2
DIMMD1
DIMMC1
IPMI_LAN
UID-SW
USB11(3.0)
SATA DOM POWER
CLEARCMOS
JPL1:LAN1/2/3/4 1-2:ENABLE
VGA
2-3:DISABLE
DIMMB2

1-6
SUPERSTORAGESYSTEM 5048R-E1CR36L User's Manual
1-4 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)
Web Site: 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)
Web Site: 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]
Web Site: www.supermicro.com.tw

Chapter 2: Server Installation
2-1
Chapter 2
Server Installation
2-1 Overview
This chapter provides a quick setup checklist to get your SuperServer 5048R-
E1CR36L 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, pro-
cessors, system memory etc., 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 SuperServer 5048R-E1CR36L 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 SuperServer 5048R-
E1CR36L. 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 SuperServer 5048R-E1CR36L 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.
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.

2-2
SUPERSTORAGESYSTEM 5048R-E1CR36L User's Manual
•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
acccording to §2 of the the German Ordinance for Work with Visual Display Units.
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 si-
multaneously 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.

Chapter 2: Server Installation
2-3
Rack Mounting Considerations
Ambient Operating Temperature
If installed in a closed or multi-unit rack assembly, the ambient operating tempera-
ture of the rack environment may be greater than the room's ambient temperature.
Therefore, consideration should be given to installing the equipment in an environ-
ment 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 connec-
tions 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.
•If the rack is provided with stabilizing devices, install the stabilizers before
mounting or servicing the unit in the rack.

2-4
SUPERSTORAGESYSTEM 5048R-E1CR36L User's Manual
2-4 Rack Mounting Instructions
Rack Rails Assembly
This section provides information on installing the SC846 chassis into a rack unit
with the rails provided. There are a variety of rack units on the market, which may
mean that 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 27" and 34.45" deep.
Identifying the Inner Rack Rails
The chassis package includes a rack rail assembly in the rack mounting kit. Each
assembly consists of an inner rail that secures to the chassis and an outer rail that
is attached directly to the rack.
Figure 2-1. Identifying the Rack Rails
Inner Rail Assembly