Dell Storage Center
SC180 Expansion Enclosure
Owner's Manual
Regulatory Model: E11J
Regulatory Type: E11J001
Contents
About this Guide.......................................................................................................5
Revision History..................................................................................................................................... 5
Audience................................................................................................................................................ 5
Contacting Dell......................................................................................................................................5
Related Publications..............................................................................................................................5
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
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
Troubleshooting Fan Modules............................................................................................................32
Troubleshooting PSUs........................................................................................................................ 32
Troubleshooting Disk Drives...............................................................................................................32
Troubleshooting EMMs.......................................................................................................................33
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
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
3
Drawer-specific left
and right side
expansion
Activity Bar Graph: Six variable-intensity
LEDs dynamically displaying access of the
drives in that specific drawer.
enclosure activity
indicators
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)
About the SC180 Expansion Enclosure
8
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
4
Cooling fans (5)
—
—
Fans that provide cooling for the expansion enclosure.
Power supply units
(2)
2.8 kW power supply that provides power for the expansion
enclosure.
5
6
Optional cable
retention positions
(4)
—
—
Locations for optional cable retention brackets.
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
4
Console port
SAS ports
Not for customer use.
Connect to the storage system
About the SC180 Expansion Enclosure
10
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
Module OK
—
Press the release latch to remove the fan module.
2
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
PSU fault
—
Press the release latch to remove the PSU.
2
•
•
Amber (steady) — PSU fault, PSU not supplying
power
Amber (flashing) — PSU firmware is downloading
3
4
AC fault
•
•
Amber (steady) — AC power is not detected
Amber (flashing) — PSU firmware is downloading
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
6
Power outlet
Power switch
—
—
Power outlet for the expansion enclosure.
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.
About the SC180 Expansion Enclosure
12
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.
Replacing SC180 Components
14
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.
Replacing SC180 Components
16
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.
Replacing SC180 Components
18
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.
Replacing SC180 Components
20
6. Select the failed cooling fan. The location of the failed cooling fan module is displayed in the Fan
View tab.
Figure 12. Rear View of the Enclosure Showing the Failed the Cooling Fan Module
Replacing a Cooling Fan Module
Use this procedure to replace a failed cooling fan module.
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 cooling fan modules one at a time without shutting down the expansion enclosure.
Steps
1. Press the release tab and pull the fan module out of the chassis using the handle.
CAUTION: The fan modules are heavy. To avoid injury, use both hands while removing the
module.
Replacing SC180 Components
21
Figure 13. Removing a Fan Module
1. Fan module
2. Release tab
2. Rotate the replacement fan module so that the release tab and handle are on the right side.
3. Slide the replacement fan module into the chassis until it is fully seated and the release tab clicks into
place.
NOTE: Allow several seconds for the enclosure to recognize the fan module and determine its
status. When functioning properly, the fan module’s Module OK LED turns green and the
Battery fault and Fan fault LEDs are off. In addition, the cooling fan status indicator turns green
in the Dell Storage Client.
4. In the Dell Storage Client, make sure that the replacement fan module 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 SC180 Components
22
Replacing Hard Drives
The SC180 expansion enclosure supports up to 84 3.5‐inch hot‐swappable hard drives installed in a two‐
drawer, three‐row, 14‐column configuration. Hard drives are connected to a backplane using Disk Drive in
Carrier (DDIC) hard drive carriers.
SC180 Expansion Enclosure Drive Numbering
In an SC180 expansion enclosure the drives are installed in a two‐drawer, three‐row, 14‐column
configuration.
The drive slots are numbered 1–42 in the top drawer and 43–84 in the bottom drawer. Dell Storage
Client identifies drives as XX-YY, where XX is the number of the unit ID of the expansion enclosure, and
YY is the drive position inside the expansion enclosure.
Figure 14. Hard Drive Drawers and Numbering
1.
Bottom drawer
2.
Top drawer
Identifying the Failed Hard Drive
To determine which hard drive 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 hard
drive.
4. In the Hardware tab navigation pane, expand the enclosure identified in the previous step and select
Disks. The status of each disk drawer is displayed in the Disks tab.
5. Expand the drawer with the failed hard drive and select the failed hard drive. The location of the
failed hard drive is displayed in the Disk View tab.
Replacing SC180 Components
23
Figure 15. Inside Drawer View Showing the Failed Hard Drive
Replacing a Hard Drive
Use this procedure to replace a failed hard drive.
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
Hard drives can be replaced one at a time without shutting down the expansion enclosure.
Steps
1. Find the SC180 and drawer containing the failed drive. The drawer fault LED will be lit.
CAUTION: Before opening a drawer, ensure that the Dell Storage Client does not display a
temperature warning. This issue needs to be rectified first to avoid potential drive failure and
data loss.
2. Push and hold both drawer latches toward the center of the drawer and pull the drawer all the way
out until it stops.
Replacing SC180 Components
24
Figure 16. Opening a DDIC Drawer
1. Drawer latches (2 per drawer)
2. Drawer (2 per chassis)
CAUTION: If the SC180 operates for too long (depending on altitude) with drive drawers
open, the enclosure can overheat, causing potential drive failure and data loss. Such use may
invalidate the warranty.
3. Find the failed DDIC by the lit LED.
4. Press the release button to unlatch the DDIC.
5. Wait about ten (10) seconds for the drive to spin down.
6. Slide the DDIC up and out until it is free of the DDIC slot.
Replacing SC180 Components
25
Figure 17. Removing a DDIC
1. Drive fault LED
3. DDIC
2. Release button
NOTE: Leave the drive in the carrier. The replacement drive will come in a carrier and
attempting to remove the carrier can cause the carrier to break.
7. Lower the replacement DDIC into the slot then push and hold the DDIC down while sliding it toward
the back of the enclosure until the DDIC latches to the backplane.
CAUTION: If the DDIC fails to latch, do not use it and request a replacement. If a faulty DDIC
unlatches within a closed drawer, it can make the drawer unable to be opened.
CAUTION: To maintain proper airflow, the drawers must be populated with drives in whole
rows at a time (there are three rows of 14 drives per drawer). The minimum number of drives
in an enclosure is 28 (one full, front row in the top drawer and one full, front row in the
bottom drawer), the number of populated rows between drawers must not differ by more
than one. Populate the rows from the front to the rear of the enclosure.
Replacing SC180 Components
26
Figure 18. Closing a Drawer
8. Close the drawer.
a. Push and hold both drawer releases then push the drawer in slightly.
b. Let go of the releases and push the drawer the rest of the way in until it clicks shut.
9. In the Dell Storage Client, make sure that the replacement hard drive is recognized and shown as up
and running. If the Dell Storage Client informs you that there are unassigned disks, see the Dell
Storage Client Administrator’s Guide for instructions on managing unassigned disks.
NOTE: Allow several seconds for the enclosure to recognize the hard drive and determine its
status. When functioning properly, the hard drive indicator turns green in the Dell Storage Client
and the LED on the DDIC is off.
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 have completed a repair.
Replacing an Enclosure Management Module
The SC180 expansion enclosures support redundant hot-swappable Enclosure Management Modules
(EMMs).
EMMs provide the following data path and enclosure management functions for the expansion
enclosure:
•
Monitoring and controlling expansion enclosure environment elements such as temperature, fan,
power supplies, and expansion enclosure LEDs
•
•
Controlling access to hard drives
Communicating expansion enclosure attributes and states to Storage Center
Replacing SC180 Components
27
Identifying the Failed Enclosure Management Module
To determine which EMM 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 EMM
(IO Module).
Figure 19. Hardware Alert Identifying the Enclosure with the Failed EMM
4. In the Hardware tab navigation pane, expand the enclosure identified in the previous step.
5. Select I/O Modules. The status of each EMM is displayed in the I/O Modules tab.
6. Select the failed EMM to the display its location in the I/O Module View tab.
Replacing SC180 Components
28
Figure 20. Rear View of the Enclosure Showing the Failed EMM
Replacing an Enclosure Management Module
Use this procedure to replace a failed EMMs.
Prerequisites
1. Use SupportAssist to send diagnostic data to Dell Technical Support Services.
About this task
EMMs can be replaced one at a time without shutting down the storage system.
Steps
1. Disconnect the SAS cables connected to the EMM.
NOTE: Make sure all of the cables are labeled before disconnecting them from the EMM.
2. Push the release tab to the right and pull the release lever away from the chassis.
3. Grasp the release lever and pull the EMM away from the chassis.
Replacing SC180 Components
29
Figure 21. Replacing an EMM
1. EMM
2. EMM release tab and lever
4. Insert the replacement EMM into the bay until it is fully seated.
5. Push the release lever toward the chassis until it clicks into place.
6. Reconnect the SAS cables to the EMM.
Next steps
1. Use SupportAssist to send diagnostic data to Dell Technical Support Services.
Replacing Rack Rails
Rack rails are used to install the SC180 expansion enclosure into a rack.
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 replacing the rack rails.
3. Shut down the expansion enclosure and expansion enclosure.
About this task
NOTE: Replacing rack rails must be performed during a scheduled maintenance window when the
Storage Center system is unavailable to the network.
Steps
1. Remove the Hold Down Brackets (HDBs).
Replacing SC180 Components
30
a. Remove the fixing screws from the rear of the expansion enclosure.
b. Remove the HDBs from the rear of the rack.
2. Remove the expansion enclosure from the rack rails.
WARNING: Do not attempt to the lift the expansion enclosure by yourself. Always get
assistance when lifting the expansion enclosure. If installed above the lower 20U of a rack, a
customer-provided mechanical lift must be used to avoid injury.
3. Remove the rack rails from the rack.
4. Install the replacement rack rails in the rack.
5. Install the expansion enclosure in the rack rails.
6. Install the HDBs.
7. Start up the storage system and expansion enclosure.
Post-Replacement Procedures
After replacing a component in the SC180 expansion enclosure, start up the SCv2080 storage controllers
and the SC180 expansion enclosures if they were previously shut down, then use SupportAssist to send
diagnostic data to Dell Technical Support Services.
Start Up the Storage System and Expansion Enclosure
If the storage system and expansion enclosure were previously shut down, perform this procedure to
start them up.
1. Plug the power cables into the PSUs of the storage system and expansion enclosure.
2. Turn on the expansion enclosure by pressing the power switches on the PSUs.
NOTE: Always turn on the expansion enclosure before turning on the storage system.
3. Turn on the storage system by pressing the power switches on the PSUs.
4. Use the Dell Storage Client to make sure the replacement part is recognized and shown as up and
running.
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.
Contact Dell Technical Support Services
Contact Dell Technical Support Services to let them know that you completed a repair, and request that
they re‐enable alerts for the enclosure.
•
Ask Dell Technical Support Services for a post‐installation system check.
Replacing SC180 Components
31
3
Troubleshooting SC180 Components
This section contains basic troubleshooting steps for components inside the SC180 expansion
enclosures.
Troubleshooting Fan Modules
Use these steps to troubleshoot fan modules.
1. Check the status of the fan module using the Dell Storage Client.
2. Determine the status of the fan module LEDs.
If the fan fault indicator is lit, the fan module has failed.
3. Reseat the fan module by removing and reinstalling it.
NOTE: Allow several seconds for the expansion enclosure to recognize the fan module and
determine its status.
Troubleshooting PSUs
Use these steps to troubleshoot Power Supply Units (PSUs).
1. Check the status of the PSU using the Dell Storage Client.
2. Determine the status of the PSU LEDs.
•
•
If the PSU fault indicator is lit, the PSU has failed.
If the Power OK LED is not lit, check the power cord and power source into which the power
supply is plugged:
–
–
–
Connect another device to the power source and check whether the device works.
Connect the power cord to a different power source.
Replace the power cord.
•
If the AC fault LED is lit, this PSU is not supplying power, though the other PSU may still be
supplying power.
3. Reseat the PSU by removing and reinstalling it.
NOTE: Allow several seconds for the expansion enclosure to recognize the PSU and determine
its status.
Troubleshooting Disk Drives
Use these steps to troubleshoot disk drives in carriers (DDICs).
1. Check the status of the disk drive using the Dell Storage Client.
2. Determine the status of the DDIC LED.
•
If the DDIC fault LED is lit, the hard drive has failed.
Troubleshooting SC180 Components
32
CAUTION: Confirm that the particular drive contains no user data. The Fault LED alone is
not an indication the drive can be safely removed.
•
If the DDIC fault LED is not lit, proceed to the next step.
3. Check the connectors and reseat the DDIC.
CAUTION: Perform this only on unmanaged drives or after you confirm that the particular
drive contains no user data. The Fault LED alone is not an indication that you can safely
remove the drive.
a. Remove the DDIC.
b. Check the DDIC and the backplane to ensure that the connectors are not damaged.
c. Reinstall the DDIC. Make sure the DDIC contacts the backplane.
Troubleshooting EMMs
Use these steps to troubleshoot Enclosure Management Modules (EMMs).
1. Check the status of the EMM using the Dell Storage Client.
2. Check the pins and reseat the EMM.
a. Remove the EMM.
b. Verify that the pins on the backplane and the EMM are not bent. If any pins are bent, do not
attempt to correct them, instead, contact Dell Technical Support Services for further instruction.
c. Reinstall the EMM.
3. Determine the status of the EMM power and fault LEDs. If the fault LED is lit, the EMM has failed.
4. Verify link status. If the link status LEDs are not green, check the cables.
a. Reseat the cables on the expansion enclosure and storage system.
b. Recheck the link status LEDs. If the link status LEDs are not green, replace the cables.
5. Reseat the EMM by removing and reinstalling it.
NOTE: Allow several seconds for the expansion enclosure to recognize the EMM and determine
its status.
Troubleshooting SC180 Components
33
4
SC180 Technical Specifications
This section contains technical specifications of the SC180 expansion enclosure.
Technical Specifications
The technical specifications of the SC180 expansion enclosure are displayed in the following tables.
Drives
SAS hard drives
Up to 84 3.5-inch SAS hot-swappable hard drives (6.0 Gbps)
Enclosure Management Modules (EMMs)
EMMs
Two hot-swappable IO modules
Connectivity
Configurations
Storage Center supports up to 168 drives on a single redundant-path SAS
chain
An SCv2080 storage system supports one SC180 expansion enclosure
Redundant Array of Independent Disks (RAID)
Storage System
Management
SCv2080
RAID management using Dell Storage Client version 2015 R1
Back-Plane Board
•
•
•
•
84 SAS hard-drive connectors
Two sets of SBB connectors
Connectors
Five cooling fan module connectors
Two power supply connectors
Back-Panel Connectors (per EMM)
•
•
Asymmetric SAS cabling for connecting an expansion enclosure to a
storage system.
SAS connectors
Supports Mini-SAS HD to Mini-SAS cable universally keyed. The following
lengths are currently supported:
SCv2080 to SC180:
–
–
0.5 m
2 m
SC180 Technical Specifications
34
Back-Panel Connectors (per EMM)
–
–
3 m
5 m
NOTE: SAS connectors are SFF-8086/SFF-8088 compliant.
LED Indicators
•
One two-digit LCD indicator for Unit ID, error code, and unit location
identifier
Front panel
•
•
One two-color LED indicator for power status
One single-color LED indicator for module fault status (expansion
enclosure as a whole)
•
One single-color LED indicator for logical fault status (drive, HBA, RAID
controller, and so on)
•
•
One single-color LED indicator for drawer 1 fault status
One single-color LED indicator for drawer 2 fault status
•
•
•
•
•
One single-color LED indicator for sideplane card and power status
One single-color LED indicator for drawer fault status
One single-color LED indicator for logical fault status
One single-color LED indicator for cable fault status
Six single-color LED indicators for data transfer status
Drawer
•
One single-color LED for drive fault status
Disk Drive In Carrier
(DDIC)
6 Gb SAS IO module
14 one-color LED status indicators, four each for the three SAS ports and two
for the module status
•
•
•
One single-color LED indicator for module status
Cooling module
One single-color LED indicator for battery fault status (not currently used)
One single-color LED indicator for fan fault status
•
•
•
One single-color LED indicator for PSU fault status
One single-color LED indicator for AC power fault status
One single-color LED indicator for power status
Power Supply Unit (PSU)
Power Supplies
AC power supply (per power supply)
Wattage
2.8 kW
Voltage
200–240 VAC (16 A)
191-147 W
Heat dissipation
Input frequency
Max input power
Input current
50/60 Hz
1791 VA
7.4 A@241 VAC
SC180 Technical Specifications
35
Power Supplies
Maximum inrush current Under typical line conditions and over the entire system ambient operating
range, the inrush current may reach 55 A per power supply for 10 ms or less
Available Hard Drive Power (per Slot)
Supported hard drive
power consumption
(continuous)
Up to 1.16 A at +5 V
Up to 1.6 A at +12 V
IO Card Power (per Slot)
Maximum power
11 W at +12 V
consumed by IO Card
Maximum available
power
100 W at +12 V
1 W at +5 V (standby)
Minimum available
power
Physical
Height
Width
22.23 cm (8.75 inches)
48.26 cm (19 inches)
91.5 cm (36 inches)
Depth (front mounting
bracket to rear surface)
Depth (front surface to
rear surface)
96 cm (38 inches)
130 kg (287 lb)
62 kg (137 lb)
Full Weight (maximum
configuration)
Weight without drives
Environmental
NOTE: For additional information about environmental measurements for specific configurations,
Temperature
Operating
5° to 35°C (41° to 95°F) with a maximum temperature gradation of 10°C per
hour
NOTE: Maximum 35°C up to 2134 m (7000 ft), derate to 30°C for 2134 m
to 3000 m (7000 ft to 10,000 ft).
Storage
–40° to 70°C (–40° to 158°F) with a maximum temperature gradation of 20°C
per hour
Relative humidity
SC180 Technical Specifications
36
Environmental
Operating
20% to 80% (noncondensing) with a maximum humidity gradation of 10% per
hour
Storage
5% to 100% (noncondensing)
Maximum vibration
Operating
0.21 G at 5–500 Hz for 15 min
1.04 G at 2–200 Hz for 15 min
Storage
Maximum shock
Operating
Half-sine shock 5 G +/- 5% with a pulse duration of 10 ms +/- 10% in
operational orientations only
•
•
Z-axis: 30 g 10 ms half sine
Storage
X- and Y-axes: 20 g 10 ms half sine
Altitude
Operating
–30.5 to 3000 m (–100 to 10,000 ft)
NOTE: Maximum 35°C up to 2134 m (7000 ft), derate to 30°C for 2134 m
to 3000 m (7000 ft to 10,000 ft).
Storage
–300 m to 12,192 m (–1000 ft to 40,000 ft)
Airborne Contaminant Level
Class
G2 or lower as defined by ISA-S71.04-1985
SC180 Technical Specifications
37
|