Dell SC7020 Owner's Manual
Dell Storage Center
SC7020 Storage System
Owner’s Manual
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.
© 2016 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.
2016 - 08
Rev. A
Contents
About This Manual................................................................................................... 4
Revision History.....................................................................................................................................4
Audience................................................................................................................................................4
Contacting Dell......................................................................................................................................4
1 SC7020 Storage System Hardware.................................................................... 5
SC7020 Storage System Front-Panel Features and Indicators........................................................... 5
SC7020 Storage System Back-Panel Features and Indicators............................................................ 6
SC7020 Storage System Drives.............................................................................................................7
SC7020 Storage System Drive Numbering.......................................................................................... 8
SC7020 Storage Controller Features and Indicators .......................................................................... 8
SC7020 Storage Controller.............................................................................................................8
2 Replacing SC7020 Storage System Components......................................... 11
Safety Precautions............................................................................................................................... 11
Installation Safety Precautions.......................................................................................................11
Electrical Safety Precautions..........................................................................................................11
Electrostatic Discharge Precautions............................................................................................. 12
General Safety Precautions........................................................................................................... 12
Bezel.....................................................................................................................................................13
Remove the Front Bezel................................................................................................................ 13
Install the Front Bezel.................................................................................................................... 13
Hard Drives ..........................................................................................................................................13
Identify the Failed Drive.................................................................................................................14
Remove the Failed Drive................................................................................................................14
Install the Replacement Drive....................................................................................................... 14
Rack Rails............................................................................................................................................. 15
Remove the Rack Rails.................................................................................................................. 15
Install the Rack Rails...................................................................................................................... 16
Power Supply/Cooling Fan Modules.................................................................................................. 16
Identify the Failed Power Supply...................................................................................................17
Identify the Failed Cooling Fan......................................................................................................17
Replace a Power Supply/Cooling Fan Module............................................................................. 17
3 SC7020 Storage System Technical Specifications.......................................20
Technical Specifications..................................................................................................................... 20
3
Preface
About This Manual
This manual describes the features and technical specifications of an SC7020 storage system.
Revision History
Document Number: 680-108-001
Revision Date Description
A August 2016 Initial release
Audience
The information provided in this 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 might 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, type 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.
4
1
SC7020 Storage System Hardware
The SC7020 storage system ships with Dell Enterprise drives, two redundant power supply/cooling fan
modules, and two redundant storage controllers.
Each storage controller contains the front-end, back-end, and management communication ports of the
storage system.
SC7020 Storage System Front-Panel Features and
Indicators
The front panel of the SC7020 contains power and status indicators, and a system identification button.
In addition, the hard drives are installed and removed through the front of the storage system chassis.
Figure 1. SC7020 Storage System Front-Panel View
Item Name Icon Description
1 Power indicator Lights when the storage system power is on
• Off – No power
• On steady green – At least one power supply is providing
power to the storage system
2 Status indicator Lights when at least one power supply is supplying power to
the storage system
• Off – No power
• On steady blue – Power is on and firmware is running
• Blinking amber – Fault detected
SC7020 Storage System Hardware
5
Item Name Icon Description
3 Identification
button
Blinking blue (continuously) – A command was sent by Dell
Storage Manager to the storage system to make the LED blink
so that users can identify the storage system in the rack.
The identification LED blinks on the control panel of the
chassis, to allow users to find the storage system when
looking at the front of the rack.
The identification LEDs on the storage controllers also blink,
which allows users to find the storage system when looking at
the back of the rack.
4 Hard drives — Can have up to 30 internal 2.5-inch SAS hard drives
SC7020 Storage System Back-Panel Features and
Indicators
The back panel of the SC7020 contains the storage controller indicators and power supply indicators.
Figure 2. SC7020 Storage System Back-Panel View
Item Name Icon Description
1 Power supply/
cooling fan module
(PSU) (2)
Contains a 1485 W power supply and fans that provide
cooling for the storage system, with AC input to the power
supply of 200-240 V.
An LED between the top of the handle and the bottom of the
handle indicates whether the PSU has AC/input power.
• Green – A valid power source is connected to the PSU and
the power supply is operational.
• Not lit – The PSU is off or the power source has a fault.
2 Storage controller
(2)
— Each storage controller contains:
• Mezzanine card with four SFP+ ports or four RJ45
10GBASE-T ports
– Left two ports are for file storage.
– Right two ports are for block storage.
• Expansion slots for additional I/O cards
6
SC7020 Storage System Hardware
Item Name Icon Description
– Slots for optional front-end connectivity – Fibre
Channel and iSCSI I/O cards
– Slots for optional back-end connectivity – SAS I/O
cards
• SAS expansion ports – Two 12 Gbps SAS ports
• USB port – Single USB 2.0 port
• MGMT port – Embedded Ethernet port that is typically
used for system management
• Serial port – Micro-USB serial port used for initial
configuration and support-only functions
3 Power switch (2) — Controls power for the storage system. Each PSU has one
switch.
4 Power supply/
cooling fan module
LED handle
—
The handle of the PSU indicates the DC power status of the
PSU and the fans.
• Not lit – No power
• Solid green – PSU has valid power source and is
operational.
• Blinking amber – Error condition in a PSU
• Blinking green – Firmware is being updated.
• Blinking green then off – Power supply mismatch
5 Power socket (2) — Accepts the following standard computer power cords:
• IEC320-C13 for deployments worldwide
• IEC60320-C19 for deployments in Japan
SC7020 Storage System Drives
The SC7020 storage system supports Dell Enterprise hard disk drives (HDDs) and Dell Enterprise solidstate drives (eSSDs) only.
The drives in the SC7020 storage system are installed horizontally. The indicators on the drives provide
status and activity information.
Figure 3. SC7020 Storage System Drive Indicators
Item Control/Feature Indicator Code
1 Drive activity
indicator
• Blinking green – Drive has I/O activity
• Steady green – Drive is detected and has no faults
2 Drive status
indicator
• Steady green – Normal operation
• Blinking green – A command was sent by Dell Storage Manager to
the disk to make the LED blink so that users can identify the disk in
the rack.
• Blinking amber – Hardware or firmware fault
SC7020 Storage System Hardware
7
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