Dell SC180 User manual

Dell Storage Center
SC180 Expansion Enclosure
Owner's Manual
Regulatory Model: E11J
Regulatory Type: E11J001

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 - 03
Rev. A00

Contents
About this Guide.......................................................................................................5
Revision History..................................................................................................................................... 5
Audience................................................................................................................................................ 5
Contacting Dell......................................................................................................................................5
Related Publications..............................................................................................................................5
1 About the SC180 Expansion Enclosure.............................................................7
SC180 Expansion Enclosure Overview................................................................................................. 7
SC180 Expansion Enclosure Monitoring and Diagnostics...................................................................7
SC180 Expansion Enclosure Front-Panel Features and Indicators..................................................... 7
SC180 Expansion Enclosure Back-Panel Features and Indicators......................................................9
SC180 Expansion Enclosure EMM Features and Indicators.........................................................10
SC180 Expansion Enclosure Fan Module Features and Indicators.............................................. 11
SC180 Expansion Enclosure PSU Features and Indicators.......................................................... 12
SC180 Expansion Enclosure Drives.................................................................................................... 12
2 Replacing SC180 Components........................................................................ 14
Safety Precautions...............................................................................................................................14
Installation Safety Precautions...................................................................................................... 14
Electrical Safety Precautions......................................................................................................... 15
Electrostatic Discharge Precautions............................................................................................. 15
General Safety Precautions........................................................................................................... 15
Pre-Replacement Procedures............................................................................................................ 16
Sending Diagnostic Data Using Dell SupportAssist......................................................................16
Contacting Dell Technical Support Services................................................................................16
Shutting Down the Storage System and Expansion Enclosures..................................................16
Replacing PSUs.................................................................................................................................... 17
Identifying the Failed PSU..............................................................................................................17
Replacing a PSU ............................................................................................................................18
Replacing Cooling Fan Modules........................................................................................................ 20
Identifying the Failed Cooling Fan Module.................................................................................. 20
Replacing a Cooling Fan Module..................................................................................................21
Replacing Hard Drives.........................................................................................................................23
SC180 Expansion Enclosure Drive Numbering............................................................................23
Identifying the Failed Hard Drive.................................................................................................. 23
Replacing a Hard Drive..................................................................................................................24
Replacing an Enclosure Management Module.................................................................................. 27
3

Identifying the Failed Enclosure Management Module...............................................................28
Replacing an Enclosure Management Module............................................................................ 29
Replacing Rack Rails........................................................................................................................... 30
Post-Replacement Procedures...........................................................................................................31
Start Up the Storage System and Expansion Enclosure...............................................................31
Sending Diagnostic Data Using Dell SupportAssist...................................................................... 31
Contact Dell Technical Support Services..................................................................................... 31
3 Troubleshooting SC180 Components............................................................32
Troubleshooting Fan Modules............................................................................................................32
Troubleshooting PSUs........................................................................................................................ 32
Troubleshooting Disk Drives...............................................................................................................32
Troubleshooting EMMs.......................................................................................................................33
4 SC180 Technical Specifications.......................................................................34
Technical Specifications..................................................................................................................... 34
4

Preface
About this Guide
This guide describes how to perform service and maintenance on an SC180 expansion enclosure.
Revision History
Document Number: MV429
Revision Date Description
A00 March 2015 Initial release
Audience
The information provided in this Owner’s Manual 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 SC180 expansion enclosure.
•Dell Storage Center SC180 Expansion Enclosure Getting Started Guide
Provides information about an SC180 expansion enclosure, such as installation instructions and
technical specifications.
•Dell Storage Center Release Notes
Contains information about new features and known and resolved issues for the Storage Center
software.
•Dell Storage Center SCv2000 Series Virtual Media Update Instructions
Describes how to install Storage Center software on an SCv2000/SCv2020 storage system using
virtual media. Installing Storage Center software using the Storage Center Virtual Media option is
intended for use only by sites that cannot update Storage Center using standard methods.
•Dell Storage Center Software Update Guide
Describes how to upgrade Storage Center software from an earlier version to the current version.
•Dell Storage Center Command Utility Reference Guide
5

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 via the PowerShell interactive shell, scripts, and PowerShell hosting
applications. Help for individual cmdlets is available online.
•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 SC180 Expansion Enclosure
An SC180 expansion enclosure provides expansion storage for an SCv2080 storage controller.
The SC180 connects directly to the SAS ports on the back of the storage system.
SC180 Expansion Enclosure Overview
The SC180 is a 5U SAS expansion enclosure that supports up to 84 internal 3.5‐inch hard drives installed
in a two‐drawer, three‐row, 14‐column configuration.
The SC180 expansion enclosure ships with two redundant power supply units, five redundant cooling
fans, and two redundant Enclosure Management Modules (EMMs).
SC180 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 SC180 also has LED indicators to notify you of a possible problem with the expansion enclosure.
NOTE: Dell OpenManage Server Administrator is not available for the SC180.
SC180 Expansion Enclosure Front-Panel Features and
Indicators
The SC180 front panel shows the expansion enclosure and power status.
Figure 1. SC180 Front-Panel Features and Indicators
About the SC180 Expansion Enclosure 7

Item Name Panel Description
1 Drawer-specific
anti-tamper locks
Locks the drawer shut using a Torx T20
screwdriver until the red arrows point to the
locked icon (away from the center of the
chassis).
2 Drawer-specific left
and right side
status indicators
•Sideplane OK/Power Good:
– Off — Sideplane card or cable fault
– Green — Sideplane card and cable are
functional (though a fault may be
indicated by one or more of the
following LEDs)
•Drawer Fault: Amber — Sideplane card
fault or drive failure causing loss of
availability or redundancy
•Logical Fault:
– Amber (steady) — Host indicated drive
fault
– Amber (flashing) — Arrays in impacted
state
•Cable Fault: Amber — Cable fault
3Drawer-specific left
and right side
expansion
enclosure activity
indicators
Activity Bar Graph: Six variable-intensity
LEDs dynamically displaying access of the
drives in that specific drawer.
4 Status indicator for
expansion
enclosure
•Unit ID Display: A numerical display
whose primary function is to display the
unit identification number.
•Input Switch: Not currently used (though
it can be used to set the Unit ID Display,
the ID will be automatically reset by the
Storage Center Operating System)
•Power On/Standby:
– Off — The expansion enclosure does
not have power
– Green — The expansion enclosure is
on (operational)
– Amber — The expansion enclosure is
in standby (not operational)
•Module Fault: Amber when there is a
hardware fault (additionally, an LED may
be lit on a PSU, drawer, DDIC, fan
module, or IO module indicating the part
at fault)
8About the SC180 Expansion Enclosure

Item Name Panel Description
•Logical Status: Amber when there is a
change of status or fault from something
other than the expansion enclosure itself
(this may be from an external RAID
controller or HBA, but is usually
associated with a disk drive as indicated
by its own fault LED)
•Drawer 1 Fault: Amber when a drive,
cable, or sideplane fault has occurred in
drawer 1
•Drawer 2 Fault: Amber when a drive,
cable, or sideplane fault has occurred in
drawer 2
NOTE:
Both drawer fault LEDs (and all contained
DDIC LEDs) will flash when the expansion
enclosure indicator is set to On in Storage
Client.
SC180 Expansion Enclosure Back-Panel Features and
Indicators
The SC180 back panel shows power, connectivity, and fault indicators.
Figure 2. SC180 Back-Panel Features and Indicators
About the SC180 Expansion Enclosure 9

Item Name Icon Description
1 Optional cable
retention positions
(4)
— Locations for optional cable retention brackets.
2 Expansion
Enclosure Modules
(2)
— Each EMM contains SAS ports and status indicators.
3 Cooling fans (5) — Fans that provide cooling for the expansion enclosure.
4 Power supply units
(2)
— 2.8 kW power supply that provides power for the expansion
enclosure.
5 Optional cable
retention positions
(4)
— Locations for optional cable retention brackets.
6 Power switch (2) — Controls power for the expansion enclosure. There is one
switch for each power supply.
SC180 Expansion Enclosure EMM Features and Indicators
An SC180 expansion enclosure includes two Enclosure Management Modules (EMMs) in two Storage
Bridge Bay (SBB) interface slots.
Figure 3. SC180 EMM Features and Indicators
Item Control/
Feature Icon Description
1 Fault LED •Off — Module OK
•Amber — Module fault
2 Power LED •Green (steady) — Module OK
•Green (flashing) — Vital product data (VPD) fault
•Off: Module fault
3 Console port Not for customer use.
4 SAS ports Connect to the storage system
10 About the SC180 Expansion Enclosure

Item Control/
Feature Icon Description
5 SAS port link
status
indicators
•Green (steady) — Connected, but no activity
•Green (flashing) — Connected plus activity
•Off — Not connected
SC180 Expansion Enclosure Fan Module Features and Indicators
SC180 expansion enclosures include five fan modules in five interface slots.
Figure 4. SC180 Fan Module Features and Indicators
Item Control/
Feature Icon Description
1 Release latch — Press the release latch to remove the fan module.
2 Module OK Green — Module OK
3 Fan fault Amber — Loss of communication with the fan module, or
reported fan speed is out of tolerance
About the SC180 Expansion Enclosure 11

SC180 Expansion Enclosure PSU Features and Indicators
SC180 expansion enclosures include two Power Supply Units (PSUs) in two interface slots.
Figure 5. SC180 PSU Features and Indicators
Item Control/Feature Icon Description
1 Release latch — Press the release latch to remove the PSU.
2 PSU fault •Amber (steady) — PSU fault, PSU not supplying
power
•Amber (flashing) — PSU firmware is downloading
3 AC fault •Amber (steady) — AC power is not detected
•Amber (flashing) — PSU firmware is downloading
4 Power OK •Green (steady) — This PSU is providing power
•Green (flashing) — AC power is present, but this
PSU is in standby mode (the other PSU is providing
power)
5 Power outlet — Power outlet for the expansion enclosure.
6 Power switch — Controls power for the expansion enclosure.
Separate and unique conditions are indicated if all three LEDs are in the same state:
• If all three LEDs are off, then there is no AC power to either PSU.
• If all three LEDs are on, then the General Enclosure Management (GEM) software has lost
communication with the PSU.
SC180 Expansion Enclosure Drives
Dell Enterprise hard disk drives (HDDs) and Enterprise Solid-State Drives (eSSDs) are the only drives that
can be installed in an SC180 expansion enclosure. If a non-Dell Enterprise drive is installed, Storage
Center prevents the drive from being managed.
Each drive is installed in Disk Drive In Carrier (DDIC) and each DDIC includes one status indicator.
12 About the SC180 Expansion Enclosure

Figure 6. DDIC and Status Indicator
Item Feature Indicator Code
1 DDIC fault indicator Amber — Drive fault
Amber (flashing) — Flashes in one second intervals when drive
or enclosure indicator is set to On in Dell Storage Client. With
the drive indicator, the containing drawer fault LED will also
flash; with the enclosure indicator, all drives’ and both
drawers’ fault LEDs will flash.
About the SC180 Expansion Enclosure 13

2
Replacing SC180 Components
This section describes how to remove and install components of an SC180 expansion enclosure.
This document assumes that the customer has received the replacement component and is ready to
install it.
Safety Precautions
Always follow these safety precautions to avoid injury and damage to Storage Center equipment.
If equipment described in the document is used in a manner not specified by Dell, the protection
provided by the equipment may be impaired. For your safety and protection, observe the rules described
in the following sections.
NOTE: See the safety and regulatory information that shipped with each Storage Center
component. Warranty information may be included within this document or as a separate
document.
Installation Safety Precautions
Follow these safety precautions:
• Dell recommends that only individuals with rack-mounting experience install an SC180 expansion
enclosure in a rack.
• You need at least two people to lift the expansion enclosure chassis from the shipping box and three
people to install it in the rack. The empty chassis weighs approximately 62kg (137 lbs).
• Make sure the expansion enclosure is fully grounded at all times to prevent damage from electrostatic
discharge.
• When handling the expansion enclosure hardware, you should use an electrostatic wrist guard (not
included) or a similar form of protection.
The expansion enclosure chassis MUST be mounted in a rack; the following safety requirements must be
considered when doing so:
• The rack construction must be capable of supporting the total weight of the installed chassis and the
design should incorporate stabilizing features suitable to prevent the rack tipping or being pushed
over during installation or in normal use.
• When loading a rack with chassis, fill from the bottom up; empty from the top down.
• To avoid danger of the rack toppling over, do not slide more than one chassis out of the rack at a
time.
• The expansion enclosure must be operated with low-pressure rear exhaust installation [back pressure
created by rack doors and obstacles not to exceed 5 Pascals (0.5 mm water gauge)].
• The rack design should take into consideration the maximum operating ambient temperature for the
unit, which is 35°C.
14 Replacing SC180 Components

Electrical Safety Precautions
Always follow electrical safety precautions to avoid injury and damage to Storage Center equipment.
WARNING: Disconnect power from the expansion enclosure when removing or installing
components that are not hot-swappable. When disconnecting power, first power down the
storage system using the Dell Storage Client and then unplug the power cords from all the power
supplies in the expansion enclosure.
• Provide a suitable power source with electrical overload protection. All Storage Center components
must be grounded before applying power. Make sure that there is a safe electrical earth connection to
power supply cords. Check the grounding before applying power.
• The plugs on the power supply cords are used as the main disconnect device. Make sure that the
socket outlets are located near the equipment and are easily accessible.
• Know the locations of the equipment power switches and the room's emergency power-off switch,
disconnection switch, or electrical outlet.
• Do not work alone when working with high-voltage components.
• Use rubber mats specifically designed as electrical insulators.
• Do not remove covers from the power supply unit. Disconnect the power connection before
removing a power supply from the expansion enclosure.
• Do not remove a faulty power supply unless you have a replacement model of the correct type ready
for insertion. A faulty power supply must be replaced with a fully operational module power supply
within 24 hours.
• Unplug the storage system chassis before you move it or if you think it has become damaged in any
way. When powered by multiple AC sources, disconnect all supply power for complete isolation.
Electrostatic Discharge Precautions
Always follow electrostatic discharge (ESD) precautions to avoid injury and damage to Storage Center
equipment.
Electrostatic discharge (ESD) is generated by two objects with different electrical charges coming into
contact with each other. The resulting electrical discharge can damage electronic components and
printed circuit boards. Follow these guidelines to protect your equipment from ESD:
• Dell recommends that you always use a static mat and static strap while working on components in
the interior of the storage system chassis.
• Observe all conventional ESD precautions when handling plug-in modules and components.
• Use a suitable ESD wrist or ankle strap.
• Avoid contact with backplane components and module connectors.
• Keep all components and printed circuit boards (PCBs) in their antistatic bags until ready for use.
General Safety Precautions
Always follow general safety precautions to avoid injury and damage to Storage Center equipment.
• Keep the area around the expansion enclosure chassis clean and free of clutter.
• Place any system components that have been removed away from the expansion enclosure chassis or
on a table so that they are not in the way of foot traffic.
• While working on the expansion enclosure chassis, do not wear loose clothing such as neckties and
unbuttoned shirt sleeves, which can come into contact with electrical circuits or be pulled into a
cooling fan.
Replacing SC180 Components 15

• Remove any jewelry or metal objects from your body because they are excellent metal conductors
that can create short circuits and harm you if they come into contact with printed circuit boards or
areas where power is present.
• Do not lift a expansion enclosure chassis by the handles of the power supply units (PSUs). They are
not designed to hold the weight of the entire chassis, and the chassis cover may become bent.
• Before moving a expansion enclosure chassis, remove the PSUs to minimize weight.
• Do not remove drives until you are ready to replace them.
NOTE: To ensure proper expansion enclosure cooling, hard drive blanks must be installed in any
hard drive slot that is not occupied.
Pre-Replacement Procedures
Perform the procedures described in this section before replacing a component of an SC180 expansion
enclosure.
Sending Diagnostic Data Using Dell SupportAssist
Use Dell SupportAssist to send diagnostic data to Dell Technical Support Services.
1. Click Send SupportAssist Data Now. The Send Support Assist Data Now dialog box appears.
2. Select Storage Center Configuration and Detailed Logs.
3. Click OK.
Contacting Dell Technical Support Services
Contact Dell Technical Support Services to let them know that you are performing a repair.
Request that Dell Technical Support Services suspend alerts for the expansion enclosure and ask for a
pre‐installation system check.
Shutting Down the Storage System and Expansion Enclosures
If the replacement component is not hot-swappable, use the Dell Storage Client to shut down the
storage system and expansion enclosures. Shutting down the storage system and expansion enclosures
results in a system outage, so plan to perform these procedures during a maintenance window.
1. Before shutting down the storage system and expansion enclosures, make sure you identify the
failed part.
2. From the Actions menu, select System→ Shutdown/Restart. The Shutdown/Restart dialog box
appears.
3. Select Shutdown and click OK.
4. When the storage system and expansion enclosures are shut down, switch off both power switches
and unplug the power cables from the expansion enclosure.
16 Replacing SC180 Components

Replacing PSUs
The SC180 expansion enclosure supports two hot-swappable power supply units (PSUs). If one unit fails,
the second unit continues to provide power to the expansion enclosure.
Identifying the Failed PSU
To determine which power supply unit (PSU) failed, use the Dell Storage Client.
1. Click the Hardware tab.
2. In the Hardware tab navigation pane, select the Storage Center.
3. In the Hardware Alerts area, find the hardware alert that identifies the enclosure with the failed
power supply.
Figure 7. Hardware Alert Identifying the Enclosure with the Failed Power Supply
4. In the Hardware tab navigation pane, expand the enclosure identified in the previous step.
5. Select Power Supplies. The status of each power supply is displayed in the Power Supplies tab.
6. Select the failed power supply. The location of the failed power supply is displayed in the Power
Supply View tab.
Replacing SC180 Components 17

Figure 8. Rear View of the Enclosure Showing the Failed the Power Supply
Replacing a PSU
Use this procedure to replace a failed power supply unit (PSU).
Prerequisites
1. Use SupportAssist to send diagnostic data to Dell Technical Support Services.
2. Contact Dell Technical Support Services to let them know that you are performing a repair.
About this task
You can replace power supply units one at a time without shutting down the expansion enclosure.
Steps
1. Press the power switch to turn off the PSU.
2. Remove the power cable from the securing clip and disconnect the power cable from the PSU.
3. Push the release tab on the PSU to the right and slide it out of the chassis using the handle.
CAUTION: The PSUs are heavy. To avoid injury, use both hands while removing the module.
18 Replacing SC180 Components

Figure 9. Removing a PSU
1. Release tab 2. Handle
4. Slide the replacement power supply unit into the chassis until it is fully seated and the release tab
clicks into place.
5. Connect the power cable to the power supply unit and make sure the cable is plugged into a power
outlet.
6. Secure the power cable using the clip.
Figure 10. Securing the Power Cable
7. Press the power switch to turn on the PSU.
Replacing SC180 Components 19

NOTE: Allow several seconds for the expansion enclosure to recognize the PSU and determine
its status. When the PSU is functioning properly, the Power OK indicator turns green and the
PSU fault and AC fault indicators are off.
8. In the Dell Storage Client, make sure that the replacement PSU is recognized and shown as up and
running.
Next steps
1. Use SupportAssist to send diagnostic data to Dell Technical Support Services.
2. Contact Dell Technical Support Services to let them know that you completed a repair.
Replacing Cooling Fan Modules
The SC180 expansion enclosure supports five cooling fan modules. If one cooling fan module fails, the
remaining fan modules continue to cool the expansion enclosure.
NOTE: When a cooling fan module fails, the fan speed in the remaining modules increases
significantly to provide adequate cooling. The fan speed decreases gradually when a new cooling
fan module is installed.
Identifying the Failed Cooling Fan Module
To determine which cooling fan module failed, use the Dell Storage Client.
1. Click the Hardware tab.
2. In the Hardware tab navigation pane, select the Storage Center.
3. In the Hardware Alerts area, find the hardware alert that identifies the enclosure with the failed
cooling fan.
Figure 11. Hardware Alert Identifying the Enclosure with the Failed Cooling Fan
4. In the Hardware tab navigation pane, expand the enclosure identified in the previous step.
5. Select Cooling Fans. The status of each cooling fan is displayed in the Cooling Fans tab.
20 Replacing SC180 Components