Dell SC400 User manual

Dell Storage Center
SC400 and SC420 Expansion Enclosure
Owner's Manual
Regulatory Model: E03J, E04J
Regulatory Type: E03J001, E04J001

Notes, Cautions, and Warnings
NOTE: A NOTE indicates important information that helps you make better use of your computer.
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you
how to avoid the problem.
WARNING: A WARNING indicates a potential for property damage, personal injury, or death.
Copyright ©2015 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and
intellectual property laws. Dell™and the Dell logo are trademarks of Dell Inc. in the United States and/or other
jurisdictions. All other marks and names mentioned herein may be trademarks of their respective companies.
2015 - 10
Rev. A

Contents
About this Guide.......................................................................................................5
Revision History..................................................................................................................................... 5
Audience................................................................................................................................................ 5
Contacting Dell......................................................................................................................................5
Related Publications..............................................................................................................................5
1 About the SC400/SC420 Expansion Enclosure...............................................7
SC400/SC420 Expansion Enclosure Overview....................................................................................7
SC400/SC420 Expansion Enclosure Monitoring and Diagnostics......................................................7
SC400/SC420 Expansion Enclosure Front-Panel Features and Indicators........................................ 7
SC400/SC420 Expansion Enclosure Back-Panel Features and Indicators.........................................9
SC400/SC420 Expansion Enclosure EMM Features and Indicators................................................. 10
Enclosure Failover when Two EMMs are Installed........................................................................11
SC400/SC420 Expansion Enclosure Drives........................................................................................11
2 Replacing SC400/SC420 Expansion Enclosure Components....................13
Safety Precautions............................................................................................................................... 13
Installation Safety Precautions...................................................................................................... 13
Electrical Safety Precautions......................................................................................................... 13
Electrostatic Discharge Precautions.............................................................................................14
General Safety Precautions........................................................................................................... 14
Pre-Replacement Procedures.............................................................................................................15
Send Diagnostic Data Using Dell SupportAssist........................................................................... 15
Replacing the Front Bezel................................................................................................................... 15
Replacing Hard Drives ........................................................................................................................16
SC400/SC420 Expansion Enclosure Drive Numbering............................................................... 16
Identifying the Failed Hard Drive...................................................................................................16
Replacing a Hard Drive..................................................................................................................18
Replacing Rack Rails........................................................................................................................... 20
Post-Replacement Procedures...........................................................................................................21
Send Diagnostic Data Using Dell SupportAssist........................................................................... 21
3 Troubleshooting Storage System Components........................................... 22
Troubleshooting Power Supply/Cooling Fan Modules..................................................................... 22
Troubleshooting Hard Drives..............................................................................................................22
Troubleshooting Enclosure Management Modules.......................................................................... 23
Troubleshooting the Control Panel....................................................................................................23
4 SC400/SC420 Expansion Enclosure Technical Specifications..................24
3

Technical Specifications..................................................................................................................... 24
4

Preface
About this Guide
This guide describes how to perform service and maintenance on the SC400/SC420 expansion
enclosure.
Revision History
Document Number: 680-105-001
Revision Date Description
A October 2015 Initial release
Audience
The information provided in this guide is intended for use by Dell end users.
Contacting Dell
Dell provides several online and telephone-based support and service options. Availability varies by
country and product, and some services may not be available in your area.
To contact Dell for sales, technical support, or customer service issues, go to www.dell.com/support.
• For customized support, enter your system Service Tag on the support page and click Submit.
• For general support, browse the product list on the support page and select your product.
Related Publications
The following documentation is available for the SC400/SC420 expansion enclosure.
•Dell Storage Center SC400 and SC420 Expansion Enclosure Getting Started Guide
Provides information about an SC400/SC420 expansion enclosure, such as installation instructions
and technical specifications.
•Dell Storage Center Software Update Guide
Describes how to update Storage Center software from an earlier version to the current version.
•Dell Storage Center Command Utility Reference Guide
Provides instructions for using the Storage Center Command Utility. The Command Utility provides a
command-line interface (CLI) to enable management of Storage Center functionality on Windows,
Linux, Solaris, and AIX platforms.
•Dell Storage Center Command Set for Windows PowerShell
Provides instructions for getting started with Windows PowerShell cmdlets and scripting objects that
interact with the Storage Center using the PowerShell interactive shell, scripts, and PowerShell hosting
applications. Help for individual cmdlets is available online.
5

•Dell Storage Client Administrator’s Guide
Provides information about the Dell Storage Client and how it can be used to manage a Storage
Center.
•Dell Enterprise Manager Administrator’s Guide
Contains in-depth feature configuration and usage information.
•Dell TechCenter
Provides technical white papers, best practice guides, and frequently asked questions about Dell
Storage products. Go to http://en.community.dell.com/techcenter/storage/.
6

1
About the SC400/SC420 Expansion
Enclosure
An SC400/SC420 expansion enclosure provides expansion storage for an SC9000 storage system.
The SC400/SC420 connects directly to the SAS ports on the back of the storage system.
SC400/SC420 Expansion Enclosure Overview
The SC400 is a 2U expansion enclosure that supports up to 12 3.5‐inch hard drives installed in a four‐
column, three-row configuration. The SC420 is a 2U expansion enclosure that supports up to 24 2.5‐inch
hard drives installed vertically side by side.
An SC400/SC420 expansion enclosure ships with two redundant power supply/cooling fan modules and
two redundant enclosure management modules (EMMs).
SC400/SC420 Expansion Enclosure Monitoring and
Diagnostics
The Storage Center OS generates alert messages for temperature, I/O module, fan module, disk, and
power conditions for Storage Center components. Use the Dell Storage Client to view these alerts.
The SC400/SC420 also has LED indicators to notify you of possible problems with the expansion
enclosure.
NOTE: Dell OpenManage Server Administrator is not available for the SC400/SC420.
SC400/SC420 Expansion Enclosure Front-Panel Features
and Indicators
The SC400/SC420 front panel shows the expansion enclosure status and power supply status.
Figure 1. SC400 Front-Panel Features and Indicators
About the SC400/SC420 Expansion Enclosure 7

Figure 2. SC420 Front-Panel Features and Indicators
Item Name Icon Description
1 System identification
button
The system identification button on the front control panel
can be used to locate a particular enclosure within a rack.
When the button is pressed, the system status indicators on
the control panel and the Enclosure Management Module
(EMM) blink blue until the button is pressed again.
2 Power LED The power LED lights when at least one power supply unit
is supplying power to the enclosure.
3 Enclosure status LED The enclosure status LED lights when the enclosure power
is on.
• Solid blue during normal operation.
• Blinks blue when a host server is identifying the
enclosure or when the system identification button is
pressed.
• Blinks amber or remains solid amber for a few seconds
and then turns off when the EMMs are starting or
resetting.
• Blinks amber for an extended time when the enclosure
is in a warning state.
• Remains solid amber when the enclosure is in the fault
state.
4Hard disk drives • SC400: Up to 12 3.5-inch SAS hot-swappable hard disk
drives.
• SC420: Up to 24 2.5-inch SAS hot-swappable hard disk
drives.
8About the SC400/SC420 Expansion Enclosure

SC400/SC420 Expansion Enclosure Back-Panel Features
and Indicators
The SC400/SC420 back panel provides controls to power up and reset the expansion enclosure,
indicators to show the expansion enclosure status, and connections for back-end cabling.
Figure 3. SC400/SC420 Expansion Enclosure Back Panel Features and Indicators
Item Name Description
1 Power supply unit and
cooling fan module (PS1)
600 W power supply
2 Enclosure management
module (EMM 0)
The EMM provides a data path between the expansion
enclosure and the host server and manages expansion
enclosure management functions for your expansion
enclosure.
3 Enclosure management
module (EMM 1)
The EMM provides a data path between the expansion
enclosure and the host server and manages enclosure
management functions for your expansion enclosure.
4 Information tag A slide-out label panel, which allows you to record Service
Tag
5 Power switches (2) Controls power for the expansion enclosure. There is one
switch for each power supply.
6 Power supply unit and
cooling fan module (PS2)
600 W power supply
About the SC400/SC420 Expansion Enclosure 9

SC400/SC420 Expansion Enclosure EMM Features and
Indicators
The SC400/SC420 includes two enclosure management modules (EMMs) in two interface slots.
Figure 4. SC400/SC420 Expansion Enclosure EMM Features and Indicators
Item Name Icon Description
1 SAS port status
(1–4)
•Green: All the links to the port are connected
•Amber: One or more links are not connected
•Off: Expansion enclosure is not connected
2 EMM status
indicator
•On steady green: Normal operation
•Amber: Expansion enclosure did not boot or is not properly
configured
•Blinking green: Automatic update in progress
•Blinking amber (two times per sequence): Expansion
enclosure is unable to communicate with other expansion
enclosures
•Blinking amber (four times per sequence): Firmware update
failed
•Blinking amber (five times per sequence): Firmware versions
are different between the two EMMs
3 SAS ports 1–4
(Input or
Output)
Provides SAS connections for cabling the storage controller to
the next expansion enclosure in the chain. (Single Port,
Redundant, and Multi-chain Configuration).
4 USB Mini-B
(serial debug
port)
Not for customer use.
5 Unit ID display Display the enclosure location in the SAS Chain.
10 About the SC400/SC420 Expansion Enclosure