Dell Storage Center SC200 User manual

Storage Center™
SC200 and SC220 Enclosures
Service Guide

Storage Center SC200 and SC220 Enclosures Service Guide
Document Number: 690-030-001
Notes, Cautions, and Warnings
Copyright Notice and Trademarks
© 2012 Dell Inc.
Trademarks used in this text: Dell™, the Dell logo, and Compellent™ are trademarks of Dell Inc.
Contacting Dell Technical Support Services
For technical support, go to support.dell.com/compellent/.
Revision Date Description
A September 2012 Initial release.
B December 2012 Updated the document template.
Note: Indicates important information that helps you complete a procedure.
Caution: Indicates either potential damage to hardware or loss of data and tells you how to avoid
the problem.
Warning: Indicates that failure to follow directions could result in property damage, personal injury,
or death.

Dell Compellent iii
Contents
1 About the SC200/220 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SC200 and SC220 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SC200 and SC220 Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SC200 and SC220 Monitoring and Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Front-Panel Features and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Back-Panel Features and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Enclosure Management Module Features and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Hard Drive Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Replacing SC200/220 Components . . . . . . . . . . . . . . . . . . . . . . . 7
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
General Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrostatic Discharge Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Pre-Replacement Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Phone Home . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Contact Dell Technical Support Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Shut Down the Controller(s) and Enclosure(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Replacing the Front Bezel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Replacing Power Supply/Cooling Fan Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Identifying the Failed Power Supply/Cooling Fan Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Replacing a Power Supply/Cooling Fan Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Replacing Hard Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Hard Drive Numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Identifying the Failed Hard Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Replacing Hard Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Replacing an Enclosure Management Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Identifying the Failed Enclosure Management Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Replacing an Enclosure Management Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Replacing the Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Replacing the Backplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Replacing Rack Rails . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Post-Replacement Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Start Up the Controller(s) and Enclosure(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Phone Home . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Contact Dell Technical Support Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3 Troubleshooting SC200/220 Components . . . . . . . . . . . . . . . . . . 25
Troubleshooting Power Supply/Cooling Fan Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

iv Storage Center SC200 and SC220 Enclosures Service Guide
Contents
Troubleshooting Hard Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Troubleshooting Enclosure Management Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Troubleshooting the Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4 SC200/SC220 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Dell Compellent 1
1 About the SC200/220
The SC200 and SC220 Enclosures Service Guide provides information about enclosure
service and maintenance. The information provided in this Service Guide is intended to be
used only by Dell-certified service engineers.
Contents
SC200 and SC220 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Front-Panel Features and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Back-Panel Features and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Enclosure Management Module Features and Indicators . . . . . . . . . . . . . . . . . . . . . . . 4
Hard Drive Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SC200 and SC220 Overview
A Storage Center enclosure holds the physical disks that provide storage. The interface
between the controller IO cards and the enclosure is referred to as back-end connectivity.
SC200 and SC220 Hardware
TheStorageCenter SC200andSC220are 2Usize SAS enclosures.The SC200enclosure
supports up to 12 3.5-inch hard drives installed in a four-column, three-row configuration.
The SC220 enclosure supports up to 24 2.5-inch hard drives installed vertically side-by-
side. The SC200 and SC220 enclosures ship with two power supply/cooling fan modules
and two redundant enclosure management modules (EMMs).
SC200 and SC220 Monitoring and Diagnostics
The Storage Center OS generates alert messages for temperature, IO module, fan, disk,
and power conditions for Storage Center components. Use the Storage Center System
Manager to view these alerts.
The SC200 and SC220 enclosures also have LED indicators to notify you of a possible
problem with the enclosure.
Note: Dell OpenManage Server Administrator is not available for SC200 and
SC220 enclosures.

Chapter 1 About the SC200/220
2Storage Center SC200 and SC220 Enclosures Service Guide
Front-Panel Features and Indicators
The front panel shows the enclosure and power status.
Figure 1. SC200 Front Panel Features and Indicators
Figure 2. SC220 Front Panel Features and Indicators
Item Name Icon Description
1 Enclosure status
indicator Lights when the enclosure power is on.
•Off: No power
•On steady blue: Normal operation
•Blinking blue: Indicates that Storage Center is identifying
the enclosure
•On steady amber: Enclosure is turning on or was reset
•Blinking amber: Enclosure is in the fault state
2 Power status
indicator Lights when at least one power supply is supplying power to the enclosure.
•Off: Both power supplies are off
•On steady green: At least one power supply is providing
power to the enclosure
3 Hard drives • SC200: Up to 12 3.5-inch hard drives
• SC220: Up to 24 2.5-inch hard drives
2
1
3
2
1
3

Back-Panel Features and Indicators
Dell Compellent 3
Back-Panel Features and Indicators
The back panel shows power indicators.
Figure 3. SC200/SC220 Back Panel Features and Indicators
!!
Compellent SC2
Compellent SC2
4
2
1
56
3
Item Control/Feature Icon Description
1 DC power indicator • Green: Normal operation. The power supply
module is supplying DC power to the enclosure.
•Off: Power switch is off, the power supply is not
connected to AC power, or there is a fault condition
2 Power supply/cooling
fan indicator •Amber: Power supply/cooling fan fault is detected
•Off: Normal operation
3 AC power indicator • Green: Power supply module is connected to a
source of AC power, whether or not the power
switch is on
•Off: Power supply module is disconnected from a
source of AC power
4 Power switches (2) Controls power for the enclosure. There is one switch
for each power supply/cooling fan module.
5 Power supply/cooling
fan modules (2) Contains a 700 W power supply and fans that provide cooling for the enclosure
6 EnclosureManagement
Modules (2) EMMs provide the data path and enclosure management functions for the enclosure

Chapter 1 About the SC200/220
4Storage Center SC200 and SC220 Enclosures Service Guide
Enclosure Management Module Features and Indicators
SC200 and SC220 enclosures include two EMM IO modules in two interface slots.
Figure 4. SC200/SC220 EMM Features and Indicators
Item Control/Feature Icon Description
1 System status indicator Not used on SC200/SC220
2 Debug port For engineering use only
3 SAS port A (in) Connect to the controller or to other enclosures
4 In port link status
indicator •Green: All the links to the port are connected
•Amber: One or more links are not connected
•Off: Enclosure is not connected
5 SAS Port B (out) Connect to the controller or to other enclosures
6 Out port link status
indicator •Green: All the links to the port are connected
•Amber: One or more links are not connected
•Off: Enclosure is not connected
7 EMM status indicator • Steady green: Normal operation
•Amber: Enclosure did not boot or is not properly
configured
•Blinking green: Auto update in process
•Blinks amber twice: Enclosure is unable to
communicate with other enclosures
•Blinks amber four times: Firmware update failed
•Blinks amber five times: Firmware versions are
different between the two EMMs
Compellent SC2
127
3456

Hard Drive Indicators
Dell Compellent 5
Hard Drive Indicators
The hard drives include status indicators.
Figure 5. SC200 Hard Drive Indicators
Figure 6. SC220 Hard Drive Indicators
Item Feature Indicator Code
1 Hard drive activity indicator • Blinking green: Indicates drive activity
•Steady green: Indicates no drive activity
2 Hard drive status indicator • Steady green: Normal operation
•Off: No power to the drive
•Blinks amber four times per second: Drive failed
2
1
2
1

Chapter 1 About the SC200/220
6Storage Center SC200 and SC220 Enclosures Service Guide

Dell Compellent 7
2 Replacing SC200/220 Components
This section describes how to replace field replaceable units (FRUs) inside the SC200 and
SC220 enclosures. This document assumes the installer has already received and is ready
to install the appropriate replacement part in the enclosure.
Contents
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Pre-Replacement Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Replacing the Front Bezel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Replacing Power Supply/Cooling Fan Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Replacing Hard Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Replacing an Enclosure Management Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Replacing the Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Replacing the Backplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Replacing Rack Rails . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Post-Replacement Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Safety Precautions
Always follow these safety precautions to avoid injury and damage to the enclosure.
Electrical Safety Precautions
Always follow electrical safety precautions to avoid injury and damage to the enclosure.
• Know the locations of the equipment power switches and the room'semergency power-
off switch, disconnection switch, or electrical outlet.
• Do not work alone when working with high voltage components.
• Do not use mats designed to decrease electrostatic discharge as protection from
electrical shock. Instead, use rubber mats that have been specifically designed as
electrical insulators.
Warning: Disconnect power from the enclosure when removing or installing
components that are not hot-swappable. When disconnecting power, first power
down the controller(s) and enclosure(s) using the Storage Center System Manager
and then unplug the power cords from all the power supply/cooling fan modules in
the enclosure.

Chapter 2 Replacing SC200/220 Components
8Storage Center SC200 and SC220 Enclosures Service Guide
• The power supply power cord must include a grounding prong and must be plugged into
grounded electrical outlets.
General Safety Precautions
Always follow general safety precautions to avoid injury and damage to the enclosure.
• Keep the area around the chassis clean and free of clutter.
• Place the chassis cover and any system components that have been removed away
from the enclosure or on a table so that they are not in the way of foot traffic.
• While working on the enclosure, 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.
• 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.
• After you are done accessing the inside of the enclosure, close the cover and secure
the enclosure to the rack with the retention screws after ensuring that all connections
have been made.
Electrostatic Discharge Precautions
Always follow electrostatic discharge (ESD) precautions to avoid injury and damage to the
enclosure.
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.
• It is recommended that you always use a static mat and static strap while working on
components in the interior of the enclosure.
• 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.
Pre-Replacement Procedures
Before replacing a FRU in the SC200 and SC220 enclosures, perform a Phone Home and
contact Dell Technical Support Services. In addition, if the FRU is not hot-swappable, the
controller(s) and enclosure(s) must be shut down.
Warning: To avoid injury, do not attempt tothe lift the enclosure by yourself. Always
get assistance when lifting the enclosure.
Caution: To ensure proper enclosure cooling, hard drive blanks must be installed in
any hard drive bay that is not occupied.

Replacing the Front Bezel
Dell Compellent 9
Phone Home
Perform a Phone Home in the Storage Center System Manager to send the current system
information to Dell Technical Support Services. The System Manager displays the Phone
Home status and indicates when the process is completed successfully.
1From the Storage Management menu, select System→Phone Home→
Phone Home. The System Manager displays previous Phone Home events.
2Click Phone Home Now. The Phone Home wizard appears.
3Click OK. The Phone Home wizard displays the status of each item that is being sent.
Items that are being sent will have a status of In Progress. Once completed, this status
will change to Success if the Phone Home has completed successfully, or Failure if the
Phone Home could not be completed.
4When all items have been sent successfully, click Close.
Contact Dell Technical Support Services
Contact Dell Technical Support Services to let them know that you will be performing a
repair, and request that they suspend alerts for the enclosure. Ask Dell Technical Support
Services for a pre-installation system check.
Shut Down the Controller(s) and Enclosure(s)
If the FRU is not hot-swappable, use the Storage Center System Manager to shut down the
controller(s) and enclosure(s). Shutting down thecontroller(s) and enclosure(s) results in a
system outage, so plan to perform these procedures during a maintenance window.
1Before shutting down the controller(s) and enclosure(s), make sure you identify the
failed part.
2From the Storage Management menu, select System→Shutdown/Restart. The
Shutdown/Restart dialog box appears.
3Select Shutdown and click OK.
4When the controller(s) and enclosure(s) are shut down, unplug the power cables from
the enclosure.
Replacing the Front Bezel
The front bezel is a cover for the front panel of the enclosure.
When replacing some FRUs, you may need to remove the front bezel. In these cases, the
replacement procedure in this document refers to these instructions.
1Use the system key to unlock the keylock at the left end of the bezel.
2Lift the release latch next to the keylock.
3Rotate the left end of the bezel away from the front panel.
4Unhook the right end of the bezel and pull the bezel away from the enclosure.

Chapter 2 Replacing SC200/220 Components
10 Storage Center SC200 and SC220 Enclosures Service Guide
Figure 7. Replacing the Front Bezel
5Hook the right end of the replacement bezel onto the enclosure.
6Insert the left end of the bezel into the securing slot until the release latch snaps into
place.
7Secure the bezel with the keylock.
Replacing Power Supply/Cooling Fan Modules
The SC200 and SC220 enclosures support two 700 W AC hot-swappable power supply/
cooling fan modules. The fans that cool the enclosure and the power supplies are
integrated into amodule and cannot be replaced separately.If onemodule fails,thesecond
module continues to provide power to the enclosure.
Identifying the Failed Power Supply/Cooling Fan Module
To determine which power supply/cooling fan module failed, use the Storage Center
System Manager.
1In the System Tree, expand the Enclosures entry.
2Expand the failed enclosure entry (indicated with a red dot).
3Click Power Supplies. The status of each power supply/cooling fan module is
displayed.
4To see the location of the failed module, click on the failed power supply/cooling fan
module entry to display a rear view of the enclosure.
1Front bezel
2Keylock
3Release latch
4Hinge tab
1
2
3
4
Note: Whenapowersupply/cooling fan modulefails,the fanspeedin theremaining
module increases significantly to provide adequate cooling. The fan speed
decreases gradually when a new power supply/cooling fan module is installed.

Replacing Power Supply/Cooling Fan Modules
Dell Compellent 11
Figure 8. Power Supplies/Cooling Fan Module Status and Rear View of the Enclosure
Replacing a Power Supply/Cooling Fan Module
Use this procedure to replace failed power supply/cooling fan modules.
1Perform a Phone Home and contact Dell Technical Support Services as described on
page 8. Power supply/cooling fan modules can be replaced one at a time without
shutting down the enclosure.
2Turn off the power supply/cooling fan module.
3Remove the hook-and-loop strap that secures the power cable and then disconnect the
power cable from the power supply/cooling fan module.
4Press the release tab and slide the power supply/cooling fan module out of the chassis
using the power supply/cooling fan module handle.
Caution: The power supply/cooling fan modules are heavy. To avoid injury, use
both hands while removing the module.

Chapter 2 Replacing SC200/220 Components
12 Storage Center SC200 and SC220 Enclosures Service Guide
Figure 9. Removing a Power Supply/Cooling Fan Module
5Slide the replacement power supply/cooling fan module into the chassis until it is fully
seated and the release tab clicks into place.
6Connect the power cable to the power supply/cooling fan module and make sure the
cable is plugged into a power outlet.
7Secure the power cable using the hook-and-loop strap.
Figure 10. Securing the Power Cable
8Turn on the power supply/cooling fan module.
1Power supply/cooling fan module
2Release tab
3Power supply/cooling fan module handle
4Power switch
1Hook-and-loop strap
1
23
4
1

Replacing Hard Drives
Dell Compellent 13
9In the Storage Center System Manager, make sure that the replacement power supply
is recognized and shown as up and running.
10 Perform a Phone Home and contact Dell Technical Support Services as described on
page 24.
Replacing Hard Drives
The SC200 and SC220 enclosures support hot-swappable hard drives. The SC200
enclosure supports up to 12 3.5-inch hard drives installed in a four-column, three-row
configuration. The SC220 enclosure supports up to 24 2.5-inch hard drives installed
vertically side-by-side. Hard drives are connected to a backplane through hard drive
carriers. Hard drive blanks are installed in the hard drive bays that are not occupied.
Hard Drive Numbering
Hard drives are numbered on the enclosure.
SC200 hard drives are numbered 0-11, from left to right and top to bottom, starting with 0
on the upper left side.
SC220 hard drives are numbered 0-23, left to right.
Identifying the Failed Hard Drive
To determine which hard drive failed, use the Storage Center System Manager.
1In the System Tree, expand the Enclosures entry.
2Expand the failed enclosure entry (indicated with a red dot).
3Click Disks. The status of each hard drive is displayed.
4To see the location of the failed hard drive, expand the Disks entry, and click on the
failed hard drive entry to display a front view of the enclosure.
Note: Allow several seconds for the enclosure to recognize the power supply/
cooling fan module and determine its status. When functioning properly, the
power supply/cooling fan module’s AC power LED turns green and the power
supply/cooling fan LED is off. In addition, the power supply status indicator turns
green in the Storage Center System Manager.
Table 1. SC200 Hard Drive Numbering
0123
4567
891011
Table 2. SC220 Hard Drive Numbering
0 1 2 3 4 5 6 7 8 9 1011121314151617181920212223

Chapter 2 Replacing SC200/220 Components
14 Storage Center SC200 and SC220 Enclosures Service Guide
Figure 11. Hard Drives Status and Front View of the Enclosure
Replacing Hard Drives
Use this procedure to replace failed hard drives.
1Perform a Phone Home and contact Dell Technical Support Services as described on
page 8. Hard drives can be replaced one at a time without shutting down the
enclosure.
2Remove the front bezel as described on page 9.
3Press the release button to open the hard drive carrier release handle.
4Slide the hard drive out until it is free of the hard drive bay.

Replacing Hard Drives
Dell Compellent 15
Figure 12. Removing an SC200 Hard Drive
1Hard drive
2 Release button
3 Hard drive carrier release handle
1
2
3

Chapter 2 Replacing SC200/220 Components
16 Storage Center SC200 and SC220 Enclosures Service Guide
Figure 13. Removing an SC220 Hard Drive
5Press the release button on the replacement hard drive to open the hard drive carrier
release handle.
6Insert the hard drive carrier into the hard drive bay until the carrier contacts the
backplane.
7Close the hard drive carrier handle to lock the hard drive in place.
1Hard drive
2 Release button
3 Hard drive carrier release handle
Note: Handle the hard drive by the plastic part of the hard drive carrier or the
handle.
Caution: Do not remove the hard drive blanks that are installed in hard drive
bays that are notoccupied. They are needed to ensure properenclosure cooling.
1
2
3