Supero SAS-846EL User Manual

SEC_J2

SEC_J1

SEC_J0

PRI_J2

PRI_J1

PRI_J0

EC8

EC22

EC20

S_J1

P_J1

L1

SEC_MODE1

PRI_MODE1

SEC_IPMI1

PRI_IPMI1

PRI_I2C1

SEC_I2C1

J25

SEC_FLASH1

PRI_FLASH1

PRI_EXP1

SEC_EXP1

FAN2

FAN1

R227

BUZZER1

5V_LED1

OVERHEATFAIL1

FANFAIL1

BUZZER_ENB1

REMOTE_FAN_FAIL_SOCKET1

PWR6

PWR4

PWR5

PWR3

PWR2

PWR1

BAR CODE

+

+

2

A

C

A

C

C

+5V

+12V

GND

GND

+5V

+12V

GND

GND

+5V

+12V

GND

GND

+5V

+12V

GND

GND

+5V

+12V

GND

GND

+5V

+12V

GND

GND

WWN

WWN

DESIGNED IN USA

REV 1.01

SAS846EL2

1J24

2

SUPER

®

BUZZER_ENB1

SEC_I2C1

BUZZER1

EC22

+12V

SEC_IPMI1

BAR CODE

DESIGNED IN USA

R227

GND

SEC_J2

SEC_MODE1

L1

SEC_FLASH1

J25

2

GND

+5V

PWR6

PWR5

EC20

+5V

+12V

GND

GND

+

SEC_J1

SEC_J0

WWN

SAS846EL2

REV 1.01

SEC_EXP1

S_J1

A

A
C

C

5V_LED1

+5V

+12V

GND

GND

PWR4

PWR3

+12V

GND

+5V

GND

PRI_J2

PRI_J1

PRI_EXP1

P_J1

PWR1

EC8

GND

+12V

+5V

GND

GND

FAN2

PWR2

+12V

+

REMOTE_FAN_FAIL_SOCKET1

OVERHEATFAIL1

AACCAAC

FANFAIL1

PRI_J0

PRI_IPMI1

PRI_I2C1

WWN

+5V

GND

FAN1

PRI_FLASH1

1J24

2

PRI_MODE1

SAS-846EL BACKPLANE

USER'S GUIDE

Rev. 1.0d

SAS-846EL Backplane User's Guide

The information in this User’s Manual has been carefully reviewed and is believed to be accurate.
The vendor assumes no responsibility for any inaccuracies that may be contained in this document,
makes no commitment to update or to keep current the information in this manual, or to notify any
person or organization of the updates. Please Note: For the most up-to-date version of this

manual, please see our web site at www.supermicro.com.

Super Micro Computer, Inc. ("Supermicro") reserves the right to make changes to the product
described in this manual at any time and without notice. This product, including software, if any,
and documentation may not, in whole or in part, be copied, photocopied, reproduced, translated or
reduced to any medium or machine without prior written consent.

IN NO EVENT WILL SUPERMICRO BE LIABLE FOR DIRECT, INDIRECT, SPECIAL, INCIDENT AL,
SPECULATIVE OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OR INABILITY TO
USE THIS PRODUCT OR DOCUMENTATION, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES. IN PARTICULAR, SUPERMICRO SHALL NOT HAVE LIABILITY FOR ANY
HARDWARE, SOFTW ARE, OR DA TA STORED OR USED WITH THE PRODUCT, INCLUDING THE
COSTS OF REPAIRING, REPLACING, INTEGRATING, INSTALLING OR RECOVERING SUCH
HARDWARE, SOFTWARE, OR DATA.

Any disputes arising between manufacturer and customer shall be governed by the laws of Santa
Clara County in the State of California, USA. The State of California, County of Santa Clara shall
be the exclusive venue for the resolution of any such disputes. Super Micro's total liability for all
claims will not exceed the price paid for the hardware product.

California Best Management Practices Regulations for Perchlorate Materials: This Perchlorate
warning applies only to products containing CR (Manganese Dioxide) Lithium coin cells. “Perchlorate
Material-special handling may apply. See www.dtsc.ca.gov/hazardouswaste/perchlorate”

WARNING: Handling of lead solder materials used in this
product may expose you to lead, a chemical known to
the State of California to cause birth defects and other
reproductive harm.

Manual Revision 1.0d
Release Date: January 6, 2010

Unless you request and receive written permission from Super Micro Computer, Inc., you may not
copy any part of this document.

Information in this document is subject to change without notice. Other products and companies
referred to herein are trademarks or registered trademarks of their respective companies or mark
holders.

Copyright © 2010 by Super Micro Computer, Inc.
All rights reserved.

Printed in the United States of America

ii

Safety Information and Technical Specifi cations

Table of Contents

Contacting Supermicro ........................................................................................v

Returning Merchandise for Service.................................................................... vi

Chapter 1 Safety Guidelines

1-1 ESD Safety Guidelines ................................................................................... 1-1

1-2 General Safety Guidelines ..............................................................................1-1

1-3 An Important Note to Users ............................................................................1-2

1-4 Introduction to the SAS-846EL Backplane......................................................1-2

Chapter 2 Jumper Settings and Pin Defi nitions

2-1 Front Connectors and Jumpers ...................................................................... 2-1

2-2 Front Connector and Pin Defi nitions ...............................................................2-2

2-3 Front Jumper Locations and Pin Defi nitions ...................................................2-4

Explanation of Jumpers .................................................................................. 2-4

2-4 Rear Connectors and LED Indicators ............................................................. 2-6

Chapter 3 Dual Port and Cascading Confi gurations

3-1 Single and Dual Port Expanders.....................................................................3-1

Single Ports .....................................................................................................3-1

Dual Ports ....................................................................................................... 3-1

3-2 Failover ............................................................................................................3-2

Single Host Bus Adapter ................................................................................. 3-2

Single Host Bus Adapter Failover ................................................................... 3-2

Dual Host Bus Adapter ..................................................................................3-2

Dual Host Bus Adapter Failover...................................................................... 3-2

3-3 Chassis Power Card and Support Cables ...................................................... 3-3

Chassis Power Card ....................................................................................... 3-3

Connecting an Internal Host Bus Adapter to the Backplane ......................... 3-4

Supported Internal HBA Cables ...................................................................... 3-4

Connecting an External Host Bus Adapter to the Backplane ........................3-6

Single External Host Bus Adapter .................................................................3-6

Dual External Host Bus Adapter .................................................................... 3-6

Supported External HBA to Backplane Cable ................................................ 3-7

Connecting Multiple Backplanes in a Single Channel Environment ............... 3-8

Single HBA Confi guration Cables ...................................................................3-9

Connecting Multiple Backplanes in a Dual Channel Environment ............... 3-10

Dual HBA Confi guration Cables .....................................................................3-11

3-4 Supported Cascading Confi gurations ...........................................................3-12

iii

SAS-846EL Backplane User's Guide

Server System with Single SAS HBA ........................................................... 3-13

Dual SAS HBA and Cascaded Confi guration ...............................................3-14

Dual SAS HBA and Cascaded Confi guration with Branching ......................3-15

iv

Safety Information and Technical Specifi cations

Contacting Supermicro

Headquarters
Address: Super Micro Computer, Inc.

980 Rock Ave.
San Jose, CA 95131 U.S.A.

Tel: [phone]
Fax: [phone]
Email: [e-mail] (General Information)

[e-mail] (Technical Support)

Web Site: www.supermicro.com

Europe
Address: Super Micro Computer B.V.

Het Sterrenbeeld 28, 5215 ML
's-Hertogenbosch, The Netherlands

Tel: [phone]
Fax: [phone]
Email: [e-mail] (General Information)

[e-mail] (Technical Support)
[e-mail] (Customer Support)

Asia-Pacifi c
Address: Super Micro Computer, Inc.

4F, No. 232-1, Liancheng Rd.
Chung-Ho 235, Taipei County
Taiwan, R.O.C.

Tel: [phone]
Fax: [phone]
Web Site: www.supermicro.com.tw
Technical Support:
Email: [e-mail]
Tel: [phone]

v

SAS-846EL Backplane User's Guide

Returning Merchandise for Service

A receipt or copy of your invoice marked with the date of purchase is required be­fore any warranty service will be rendered. You can obtain service by calling your
vendor for a Returned Merchandise Authorization (RMA) number. When returning
to the manufacturer, the RMA number should be prominently displayed on the
outside of the shipping carton, and mailed prepaid or hand-carried. Shipping and
handling charges will be applied for all orders that must be mailed when service
is complete.

For faster service, RMA authorizations may be requested online (http://www.
supermicro.com/support/rma/).

Whenever possible, repack the backplane in the original Supermicro box, using the
original packaging materials. If these are no longer available, be sure to pack the
backplane in an anti-static bag and inside the box. Make sure that there is enough
packaging material surrounding the backplane so that it does not become damaged
during shipping.

This warranty only covers normal consumer use and does not cover damages in­curred in shipping or from failure due to the alteration, misuse, abuse or improper
maintenance of products.

During the warranty period, contact your distributor fi rst for any product problems.

vi

Safety Information and Technical Specifi cations

Chapter 1

Safety Guidelines

To avoid personal injury and property damage, carefully follow all the safety steps
listed below when accessing your system or handling the components.

1-1 ESD Safety Guidelines

Electrotatic Discharge (ESD) can damage electronic com ponents. T o prevent damage
to your system, it is important to handle it very carefully . The following measures are
generally suffi cient to protect your equipment from ESD.

Use a grounded wrist strap designed to prevent static discharge.

•

Touch a grounded metal object before removing a component from the antistatic •
bag.

Handle the backplane by its edges only; do not touch its components, peripheral

•

chips, memory modules or gold contacts.

When handling chips or modules, avoid touching their pins.

•

Put the backplane and peripherals back into their antistatic bags when not in •
use.

1-2 General Safety Guidelines

Always disconnect power cables before installing or removing any components •
from the computer, including the backplane.

Disconnect the power cable before installing or removing any cables from the

•

backplane.

Make sure that the backplane is securely and properly installed on the mother-

•

board to prevent damage to the system due to power shortage.

1-1

SAS-846EL Backplane User's Guide

1-3 An Important Note to Users

All images and layouts shown in this user's guide are based upon the latest PCB
Revision available at the time of publishing. The card you have received may or
may not look exactly the same as the graphics shown in this manual.

1-4 Introduction to the SAS-846EL Backplane

The SAS-846EL backplane has been designed to utilize the most up-to-date technol­ogy available, providing your system with reliable, high-quality performance.

This manual refl ects SAS-846EL Revision 1.01, the most current release available at
the time of publication. Always refer to the Supermicro W eb site at www.supermicro.
com for the latest updates, compatible parts and supported confi gurations.

1-2

Safety Information and Technical Specifi cations

SEC_J2

SEC_J1

SEC_J0

PRI_J2

PRI_J1

PRI_J0

EC8

EC22

EC20

S_J1

P_J1

L1

SEC_MODE1

PRI_MODE1

SEC_IPMI1

PRI_IPMI1

PRI_I2C1

SEC_I2C1

J25

SEC_FLASH1

PRI_FLASH1

PRI_EXP1

SEC_EXP1

FAN2

FAN1

R227

BUZZER1

5V_LED1

OVERHEATFAIL1

FANFAIL1

BUZZER_ENB1

REMOTE_FAN_FAIL_SOCKET1

PWR6

PWR4

PWR5

PWR3

PWR2

PWR1

BAR CODE

+

+

2

A

C

A

C

C

+5V

+12V

GND

GND

+5V

+12V

GND

GND

+5V

+12V

GND

GND

+5V

+12V

GND

GND

+5V

+12V

GND

GND

+5V

+12V

GND

GND

WWN

WWN

DESIGNED IN USA

REV 1.01

SAS846EL2

1J24

2

Chapter 2

Jumper Settings and Pin Defi nitions

2-1 Front Connectors and Jumpers

1

2

1

1

BUZZER_ENB1

SEC_I2C1

BUZZER1

4

1

EC22

6

1

+12V

SEC_IPMI1

BAR CODE

DESIGNED IN USA

R227

GND

3

1

SEC_J2

SEC_MODE1

L1

13

1

SEC_FLASH1

J25

2

GND

+5V

PWR6

PWR5

EC20

+5V

+12V

GND

GND

+

3

1

SEC_J1

SEC_J0

12

11

1

WWN

5

1

7

1

1

SAS846EL2

REV 1.01

SEC_EXP1

S_J1

A

A
C

C

5V_LED1

+5V

+12V

GND

GND

PWR4

3

1

PWR3

+12V

GND

+5V

GND

3

1

PRI_J2

PRI_J1

10

9

1

1

PRI_EXP1

P_J1

5

1

PWR1

EC8

GND

+5V

+12V

+12V

+5V

GND

GND

FAN2

PWR2

7

3

1

1

GND

+

3

1

Figure 2-1: Front Connectors

Front Connectors

1. and 2. Primary and secondary I2C connectors (optional)

3. Power connectors: PWR1, PWR2, PWR3, PWR4, PWR5, and PWR6

1

2

1

1

REMOTE_FAN_FAIL_SOCKET1

OVERHEATFAIL1

AACCAAC

FANFAIL1

PRI_J0

PRI_IPMI1

PRI_I2C1

8

1

WWN

6

1

FAN1

PRI_FLASH1

4

1

1J24

2

PRI_MODE1

7

1

4. Primary and secondary fl ash chip

5. Primary and secondary expander chip

6. EPP connectors: J24 and J25

7. Fan connectors: Fan1, Fan2, and Fan3

8. SAS connector: PRI_J0

9. SAS connector: PRI_J1

10. SAS connector: PRI_J2

11. SAS connectors SEC_J0 (not available in EL1 single port backplane)

12. SAS connector: SEC_J1 (not available in EL1 single port backplane)

13. SAS connector: SEC_J2 (not available in EL1 single port backplane)

2-1

SAS-846EL Backplane User's Guide

2-2 Front Connector and Pin Defi nitions

1. and 2. Optional Primary and Secondary

2

I

C Connectors

The optional I

2

C connectors are connected to
the CSE-PTJBOD-CB2 board and are used
to monitor the power supply status and to
control the fans. See the table on the right
for pin defi nitions.

3. Backplane Main Power Connectors

The 4-pin connectors, designated PWR1,
PWR2, PWR3, PWR4, PWR5, and PWR6,
provide power to the backplane. See the
table on the right for pin defi nitions.

I2C Connector

Pin Defi nitions

Pin# Defi nition
1 Data
2 Ground
3 Clock
4 No Connection

Backplane

Main Power

4-Pin Connector

Pin# Defi nition

1 +12V

2 and 3 Ground

4 +5V

4. Primary and Secondary Flash Chips

The primary and secondary flash chips
enhance the backplane memory.

5. Primary and Secondary Expander Chips

This primary and secondary expander chips
allow the backplane to support dual ports,
cascading, and failover.

6. EPP Ports

The EPP ports are used for manufacturer
diagnostic purposes only.

2-2

Safety Information and Technical Specifi cations

7. Fan Connectors

The 3-pin connectors, designated FAN1,
FAN2, and FAN3, provide power to the
fans. See the table on the right for pin
defi nitions.

8 - 13. SAS Ports

The primary and secondary sets of SAS
ports provide expander features including
cascading and failover From right to left
the ports are primary 1/2/3 and secondary
1/2/3.

Fan Connectors

Pin# Defi nition

1 Ground
2 +12V
3 Tachometer

2-3

SAS-846EL Backplane User's Guide

SEC_J2

SEC_J1

SEC_J0

PRI_J2

PRI_J1

PRI_J0

EC8

EC22

EC20

S_J1

P_J1

L1

SEC_MODE1

PRI_MODE1

SEC_IPMI1

PRI_IPMI1

PRI_I2C1

SEC_I2C1

J25

SEC_FLASH1

PRI_FLASH1

PRI_EXP1

SEC_EXP1

FAN2

FAN1

R227

BUZZER1

5V_LED1

OVERHEATFAIL1

FANFAIL1

BUZZER_ENB1

REMOTE_FAN_FAIL_SOCKET1

PWR6

PWR4

PWR5

PWR3

PWR2

PWR1

BAR CODE

+

+

2

A

C

A

C

C

+5V

+12V

GND

GND

+5V

+12V

GND

GND

+5V

+12V

GND

GND

+5V

+12V

GND

GND

+5V

+12V

GND

GND

+5V

+12V

GND

GND

WWN

WWN

DESIGNED IN USA

REV 1.01

SAS846EL2

1J24

2

2-3 Front Jumper Locations and Pin Defi nitions

BUZZER_ENB1

REMOTE_FAN_FAIL_SOCKET1

OVERHEATFAIL1
FANFAIL1

SEC_MODE1

BUZZER_ENB1

SEC_I2C1

BUZZER1

EC22

+12V

SEC_IPMI1

BAR CODE

DESIGNED IN USA

R227

GND

SEC_J2

SEC_MODE1

L1

SEC_FLASH1

J25

2

GND

+5V

PWR6

PWR5

EC20

+5V

+12V

GND

GND

+

SEC_J1

SEC_J0

WWN

SAS846EL2

REV 1.01

SEC_EXP1

S_J1

A

A
C

C

5V_LED1

+5V

+12V

GND

GND

PWR4

PWR3

+12V

GND

+5V

GND

PRI_J2

PRI_J1

PRI_EXP1

P_J1

PWR1

EC8

GND

+12V

+5V

GND

GND

FAN2

PWR2

+12V

+

REMOTE_FAN_FAIL_SOCKET1

OVERHEATFAIL1

AACCAAC

FANFAIL1

PRI_J0

PRI_IPMI1

PRI_I2C1

WWN

+5V

GND

FAN1

PRI_FLASH1

1J24

2

PRI_MODE1

PRI_
Mode1

Figure 2-2: Front Jumper Locations and Pin Defi mitions

Explanation of Jumpers

3 2 1

Connector

Pins

Jumper

Setting

3 2 1

To modify the operation of the backplane,
jumpers can be used to choose between
optional settings. Jumpers create shorts
between two pins to change the function
of the connector. Pin 1 is identifi ed with
a square solder pad on the printed circuit
board. Note: On two pin jumpers, "Closed"
means the jumper is on and "Open" means
the jumper is off the pins.

2-4

Safety Information and Technical Specifi cations

General Jumper Settings

Jumper Jumper Settings Note

PRI_MODE1 1-2

SEC_MODE1 1-2

BUZZER_ENB1

Open: Disable
Closed: Enable

Factory Setting
Do not change

Factory Setting
Do not change

Buzzer Enable*

*The buzzer sound indicates that a condition requiring immediate attention has
occurred.

The buzzer alarm is triggered by the following conditions:

Hard drive failure1.

Fan failure2.

System temperature over 45º Celsius.3.

Socket Settings

Socket Socket Setting Note

REMOTE_FAN_FAIL_
SOCKET

Connected

Front Panel Fan Fail indicator
(Optional)

Front Panel LEDs

LED State Specifi cation

OVERHEATFAIL1 ON

Overheat/Drive Failure LED Indicator
(Red light: fl ashing, Buzzer: On)

FANFAIL1 ON Failure in Fan #1

2-5

SAS-846EL Backplane User's Guide

2-4 Rear Connectors and LED Indicators

ACT11

ACT#11

TP5

TP9

TP8

C22

C14
C23

C24

SAS #5

C6

SAS #4
SAS #3

C476

C471

R220

C473

C469

C474

SAS #2

C472

C478

C477

R221

SAS #1
SAS #0

ACT5

R96

AC
C

FAIL#5ACT#5

D31

C409

J5

C408

J4

C393

J3

C386

C385

J1

F5

C384

FAIL5

A

R98

SAS #11

C

ACT#4 FAIL#4

R95

ACT4

A

D30

FAIL4

AC

R97

SAS #10

C

ACT#3 FAIL#3

C

D29

A

R94

SAS #9

CA

ACT2ACT3

R91R92

A

C

D28

A

R93

SAS #8

ACT1

R87

AC

AC

D27

SAS #7

C

ACT#0 FAIL#0

R88

ACT0

A
C

D26

FAIL0FAIL1FAIL2FAIL3

R567

A

R89R90

SAS #6

6

C431

C416

C420

C426

C427

C430

SAS

#10

C412

C415

C424

C425

C429

SAS

C418

C423

C414

C422

#9

J9

C428

C417

C413

C419

C421

J8

C103
C100
C97
C94

C407

J7

C389

C399

C402

1924

18

19

24

18

13

7 12

J6

6 13

C387

C397

C405

C19

C20
C5

SAS

C391

C401

#5

C392

C396

C404

SAS

#4

C390

C400

C368

C377

C383

SAS

#3

C378

C379

C475

PRI_SRAM2

C470

C371

C372

C365

C376

C382

J2

SAS

#2

PRI_SRAM1

C367

C370

C364

C375

C381

SAS

#1

C373

C374

C366

C369

C380

SAS

#0

J0

C

R108

A

D37

FAIL#11

C

R110

C435

C48

C32

C39

C31

C47

C43

C44

C29

C30

C36

C38

C46

SAS #17 SAS #23

J11

ACT10

C

R107

A

FAIL#10ACT#10

FAIL10FAIL11

D36

R109

C434

SAS #16

J10

C

ACT#9

ACT9

R104

A
CACA

D35

FAIL9

FAIL#9

A

R106

C433

SAS #15

C

R103

ACT8

A

D34

C

FAIL8

A

R105

C432

SAS #14

C

ACT#7 FAIL#7

ACT7

R100

A

C

FAIL7

D33

A

R102

SAS #13

C403

C394

C395

ACT6

C

R99

A
C

D32

FAIL6

A

R101

C410

SAS #12

C516

C517

C525

C526

C532

SAS

C45

C37

C35

C27

#17

J17

C522

C515

C531

SAS

#16

J16

C519

C521

C501

C493

C505

C506

C510

SAS

#15

J15

TP26

C509

J14

C331

C332

SAS

L167

#14

C500

C499

RB1

C503

C504

L166

C357

C358

C356
C355
C354

C496

C497

C508

J13

SAS

#13

C491

C492

C502

C495

C494

C498

C507

J12

SAS

#12

Figure 2-3: Rear Connectors

C

R239

A
C

D67

A

R241

FAIL17

C536

C40

C42

ACT16

C

R238

A

C

D66

A

FAIL16

R240

C535

SAS #22

ACT15

R235

C

A

D65

AC

R237

FAIL15

C514

R234

ACT14

SAS #21

C

A

C

D64

A

C513

FAIL14

R236

SAS #20

R231

ACT13

C

A
C

D63

FAIL13

R233

C512

SAS #19

ACT12

R230

AC

CA

D62

A

R232

FAIL12

C511

SAS #18

ACT23

ACT#23 FAIL#23

ACT17

FAIL#11ACT#11

C26

C28

C33

C41

FAIL#16ACT#16

ACT#15

FAIL#15

ACT#14

C487

FAIL#14

C485

R225

C484

C482

FAIL#13ACT#13

C488

C481

ACT#12 FAIL#12

C541

C551

C553

C558

SAS

#23

C545

C546

C557

C540

C550

SAS

#22

J22

C543

C544

C548

C549

C556

SAS

#21

C486

R224

J21

SEC_SRAM2

C539

C542

C547

C552

C555

SAS

C490

C483

#20

C480

C524

C518

C530

C529

C534

SAS

#19

J19

F6

C527

C528

C520

C523

C533

SAS

#18

J18

C

R251

A
C

D73

A

C562

R253

FAIL23

C554

ACT#22 FAIL#22

J23

ACT22

R250

C

A

C

D72

A

C561

FAIL22

R252

ACT#21

ACT21

C

R247

A
C

D71

A

R249

FAIL21

FAIL#21 FAIL#20ACT#20

C560

ACT20

R246

C

A
C

D70

A

C559

FAIL20

R248

J20

ACT#19

ACT19

R243

C

A
C

D69

A

FAIL#19

C538

R245

FAIL19

ACT#18

ACT18

R242

C

A

D68

C

A

FAIL18

R244

FAIL#18

C537

Rear SAS/SATA Connectors

Rear

Connector

SAS Drive

Number

Rear

Connector

SAS Drive

Number

SAS #0 SAS/SATA HDD #0 SAS #12 SAS/SATA HDD #12
SAS #1 SAS/SATA HDD #1 SAS #13 SAS/SATA HDD #13
SAS #2 SAS/SATA HDD #2 SAS #14 SAS/SATA HDD #14
SAS #3 SAS/SATA HDD #3 SAS #15 SAS/SATA HDD #15
SAS #4

SAS/SATA HDD #4

SAS #16

SAS/SATA HDD #16
SAS #5 SAS/SATA HDD #5 SAS #17 SAS/SATA HDD #17
SAS #6 SAS/SATA HDD #6 SAS #18 SAS/SATA HDD #18
SAS #7 SAS/SATA HDD #7 SAS #19 SAS/SATA HDD #19
SAS #8 SAS/SATA HDD #8 SAS #20 SAS/SATA HDD #20
SAS #9 SAS/SATA HDD #9 SAS #21 SAS/SATA HDD #21
SAS #10 SAS/SATA HDD #10 SAS #22 SAS/SATA HDD #22
SAS #11 SAS/SATA HDD #11 SAS #23 SAS/SATA HDD #23

2-6

Safety Information and Technical Specifi cations

Rear LED Indicators

Rear Connector Hard Drive Activity LED Failure LED

SAS #0 ACT #0 FAIL #0
SAS #1 ACT #1 FAIL #1
SAS #2 ACT #2 FAIL #2
SAS #3 ACT #3 FAIL #3
SAS #4 ACT #4 FAIL #4
SAS #5 ACT #5 FAIL #5
SAS #6 ACT #6 FAIL #6
SAS #7 ACT #7 FAIL #7
SAS #8 ACT #8 FAIL #8
SAS #9 ACT #9 FAIL #9
SAS #10 ACT #10 FAIL #10
SAS #11 ACT #11 FAIL #11
SAS #12 ACT #12 FAIL #12
SAS #13 ACT #13 FAIL #13
SAS #14 ACT #14 FAIL #14
SAS #15 ACT #15 FAIL #15
SAS #16 ACT #16 FAIL #16
SAS #17 ACT #17 FAIL #17
SAS #18 ACT #18 FAIL #18
SAS #19 ACT #19 FAIL #19
SAS #20 ACT #20 FAIL #20
SAS #21 ACT #21 FAIL #21
SAS #22 ACT #22 FAIL #22
SAS #23 ACT #23 FAIL #23

2-7

SAS-846EL Backplane User's Guide

Notes

2-8

Safety Information and Technical Specifi cations

PRI_FLASH1

PRI_FLASH1

Chapter 3

Dual Port and Cascading Confi gurations

3-1 Single and Dual Port Expanders

Single Ports

SAS-846EL1 backplanes have a single-port expander that access all twenty-four
drives and supports cascading.

Dual Ports

SAS-846EL2 backplanes have dual-port expanders that access all twenty-four
drives. These dual-port expanders support cascading, failover, and multipath.

Port B

Secondary Ports

Expander 2

J2 J2

To lower backplane in

cascaded system

Figure 3-1: SAS-846EL2 Dual Port Confi guration

From HBA or higher

backplane

J1

J0

To lower backplane in

cascaded system

Primary Ports

From HBA or higher

backplane

Port A

Primary Ports

Expander 1

J1

From HBA or higher

backplane

Port A

Expander 1

J0

PRI_FLASH1

Figure 3-2: SAS-846EL1 Single Port Confi guration

J2

To lower backplane in

cascaded system

3-1

J1

J0

PRI_FLASH1

SAS-846EL Backplane User's Guide

3-2 Failover

The SAS-846EL2 backplane has two expanders which allow effective failover.

Single Host Bus Adapter

SAS HBA

In a single host bus confi guration, the
backplane connects to one Host Bus
Adapter (HBA).

SEC_J2

WWN

SEC_J0 SEC_J1

PRI_J2

PRI_J1

PRI_J0

Single Host Bus Adapter
Failover

If the expander or data path in Port A
fails, the system automatically switches
to Port B.

Dual Host Bus Adapter

In a Dual Host Bus Confi guration, the
backplane connects to two Host Bus
Adapters (HBA).

Port B

Expander 2

J17

Port A

Expander 1

Figure 3-3: Single HBA

SAS HBA

PRI_J2

Port A

Expander 1

WWN

SEC_J2

SEC_J0 SEC_J1

Port B

Expander 2

J17

Figure 3-4: Single HBA Failover

SAS HBA

SAS HBA

SEC_J2

WWN

SEC_J0 SEC_J1

PRI_J2

PRI_J1

PRI_J0

PRI_J1

PRI_J0

Dual Host Bus Adapter
Failover

If the expander or data path in Port A
fails, the system automatically switches
to Port B. This maintains a full connec­tion to all drives.

3-2

Port B

Expander 2

J17

Expander 1

Figure 3-5: Dual HBA

SAS HBA

SAS HBA

SEC_J2

WWN

SEC_J0 SEC_J1

PRI_J2

Port B

Expander 2

J17

Expander 1

Figure 3-6: Dual HBA Failover

Port A

PRI_J1

Port A

PRI_J0

Safety Information and Technical Specifi cations

3-3 Chassis Power Card and Support Cables

Chassis Power Card

In a cascaded confi guration, the fi rst chassis includes a motherboard and at least
one Host Bus Adapter (HBA). Other servers in this enclosed system, include a
power card. This section describes the supported power card for the SAS-846
series backplane.

For more information, see the PCC-JBPWR2 power card manual. This manual can
be found at the http://www.supermicro.com or as an appendix in the SAS-846EL
chassis manual.

AA

AA

JBPWR2

AA

REV 1.00

Figure 3-7: Chassis Power Card (Sold Separately)

Part Number Part Type Where Used

CSE-PTJBOD-CB1 Power card

Power Card

Allows the chassis to be in a
JBOD (Just a Bunch of Drives)
system.

3-3

SAS-846EL Backplane User's Guide

Connecting an Internal Host Bus Adapter to the
Backplane

The following section lists the most common cables used to connect the Host Bus
Adapter (HBA) to the backplane.

SEC_J2

WWN

SEC_J0 SEC_J1

J17

PRI_J2

PRI_J1

PRI_J0

HBA

(Host Bus Adapter)

Figure 3-8: Single Internal Host Bus Adapter

SEC_J2

WWN

SEC_J0 SEC_J1

J17

PRI_J2

PRI_J1

PRI_J0

HBA (Host Bus Adapter)

HBA (Host Bus Adapter)

Figure 3-9: Dual Internal Host Bus Adapter

Supported Internal HBA Cables

Use the following listed cables to create connections between the internal HBA and
SAS-846EL backplane. The cables required depend on the HBA connector.

Cable Name: iPass TO 4-lane
Part #: CBL-0117L Length: 46 cm (18 inches)

Description: This cable has one SFF-8484 (32 pin) connector on one end and

iPass (SFF-8087/mini-sas) connector (36 pins) at the other. This cable connects
from the HBA to the SAS-846EL backplane.

3-4

Safety Information and Technical Specifi cations

Cable Name: iPass (mini SAS) to iPass (mini SAS)
Part #: CBL-0108L-02 Length: 39 cm (15 inches)
Part #: CBL-0109L-02 Length: 22 cm (9 inches)
Part #: CBL-0110L-02 Length: 18 cm (7 inches)

Description: This cable has an iPass (SFF-8087/mini-sas) connector (36 pins) at

each end. It connects from the HBA to the SAS-846EL backplane.

3-5

SAS-846EL Backplane User's Guide

Connecting an External Host Bus Adapter to the
Backplane

This backplane supports external Host Bus Adapters. In this confi guration, the HBA
and the backplane are in different physical chassis. This allows a JBOD confi gura-
tion system to connect to the other system that has a HBA.

Single External Host Bus Adapter

WWN

HBA

(Host Bus Adapter)

Power Card

Figure 3-10: Single External Host Adapter

Dual External Host Bus Adapter

SEC_J2

SEC_J0 SEC_J1

J17

PRI_J2

PRI_J1

PRI_J0

CBL-0200L

External HBA Cable

HBA

(Host Bus Adapter)

HBA

(Host Bus Adapter)

Figure 3-11: Dual External Host Bus Adapter

WWN

Power Card

3-6

SEC_J2

SEC_J0 SEC_J1

J17

PRI_J2

CBL-0200L

External HBA Cables

PRI_J1

PRI_J0

Safety Information and Technical Specifi cations

Supported External HBA to Backplane Cable

Use the following cable if your external HBA has an Infi niBand connector.

Figure 3-12: SAS Infi niBand Cable (CBL-0200L)

Cable Name: SAS Infi niBand to Mini SAS X4 1M cable, PBF
Part #: CBL-0200L Length: 1 meter

Description: This cable has an Infi niBand connector (SFF-8470) on one end and

an SFF-8088-1X (26-pins) at the other end.

3-7

SAS-846EL Backplane User's Guide

Connecting Multiple Backplanes in a Single Channel
Environment

This section describes the cables used when cascading from a single HBA. These
connections use CBL-0167L internal cables and CBL-0166L external cables.

CBL-0167L

SEC_J2

WWN

SEC_J0 SEC_J1

PRI_J2

PRI_J1

PRI_J0

with Single Port Assembly

(internal cable)

Port B Expander 2

J17

Port A Expander 1

HBA (Host Bus Adapter)

SEC_J2

WWN

Port B Expander 2

SEC_J0 SEC_J1

Port A Expander 1

J17

Power Card

Figure 3-13: Single HBA Confi guration

CBL-0166L

(external cable)

PRI_J2

PRI_J1

PRI_J0

3-8

Safety Information and Technical Specifi cations

Single HBA Confi guration Cables

Single Port Cable Assembly

Figure 3-14: Single Port Internal Cable (CBL-0167L)

Cable Name: SAS EL2/EL1 Backplane Cable (Internal) with 2-port Cascading Cable,

68 cm

Part #: CBL-0167L (SFF-8087 to SFF-8088 x1)
Ports: Single
Placement: Internal cable

Description: Internal cable. Connects the backplane to the Host Bus Adapter (HBA)

or external port. Used in single port environments.

Figure 3-15: External Cable (CBL-0166L)

Cable Name: SAS EL2/EL1 Cascading Cable (External), 68cm
Part #: CBL-0166L (SFF-8088 1x to SFF-8088 x1)

Ports: Single or Dual
Placement: External cable

Description: External cascading cable. Connects ports between servers. With most

connectors, use one cable for single port connections and two cables for dual port
connections.

3-9

SAS-846EL Backplane User's Guide

Connecting Multiple Backplanes in a Dual Channel
Environment

This section describes the cables used when cascading from dual HBAs. These
connections use CBL-0168L internal cables and CBL-0166L external cables.

SEC_J2

WWN

SEC_J0 SEC_J1

Port B Expander 2

J17

HBA (Host Bus Adapter)

HBA (Host Bus Adapter)

SEC_J2

WWN

SEC_J0 SEC_J1

Port B Expander 2

J17

Power Card

PRI_J2

PRI_J1

Port A Expander 1

PRI_J2

PRI_J1

PRI_J0

Port A Expander 1

PRI_J0

Cable 0168L

with Single Port Assembly

(internal cable)

Cable 0166L

(external cable)

Figure 3-16: Dual HBA Confi guration

3-10

Safety Information and Technical Specifi cations

Dual HBA Confi guration Cables

Dual Port Cable

Assembly

Figure 3-17: Dual Port Internal Cable (CBL-0168L)

Cable Name: SAS Dual-port Cable Assembly, 68/76cm
Part #: CBL-0168L

Ports: Dual

Description: Internal cascading cable. Connects the backplane to the Host Bus

Adapter (HBA) or external port. Used in dual port environments.

Placement: Internal cable

Cable Name: SAS EL2/EL1 Cascading Cable (External), 68cm
Part #: CBL-0166L

Ports: Single or Dual

Description: External cascading cable. Connects ports between servers. Use one

cable for single port connections and two cables for dual port connections.

Figure 3-18: External Cable (CBL-0166L)

Placement: External cable

3-11

SAS-846EL Backplane User's Guide

3-4 Supported Cascading Confi gurations

Cascading allows the system to access data at a faster rate by allowing several
backplanes to share resources to reduce latency time.

The fi rst backplane in a cascaded system requires a motherboard and HBA. Other
servers require a power control card with no motherboard and no HBA. For more
information, see the SC846 Chassis Manual available at www.supermicro.com.

SEC_J2

WWN

Port B Expander 2

SEC_J0 SEC_J1

Port A Expander 1

J17

HBA (Host Bus Adapter)

Cable 0167L

(internal cable)

SEC_J2

WWN

Port B Expander 2

SEC_J0 SEC_J1

Port A Expander 1

J17

Power Card

PRI_J2

PRI_J1

PRI_J0

Single Port Cable

Assembly

PRI_J2

PRI_J1

PRI_J0

Cable 0166L

(external cable)

SEC_J2

WWN

SEC_J0 SEC_J1

Port B Expander 2

J17

Power Card

Figure 3-19: Simple Cascaded Confi guration

PRI_J2

PRI_J1

PRI_J0

Port A Expander 1

3-12

Safety Information and Technical Specifi cations

Server System with Single SAS HBA

The expanders allow horizontal branching. This confi guration also applies to dual
ports.

WWN

SEC_J2

Port A Expander 1

J17

HBA

Cable 0167L

(internal cable)

WWN

SEC_J2

Port A Expander 1

J17

Power Card

Cable 0166L

(external cable)

SEC_J0 SEC_J1

SEC_J0 SEC_J1

PRI_J2

PRI_J1

PRI_J0

WWN

SEC_J2

SEC_J0 SEC_J1

Port A Expander 1

J17

PRI_J2

PRI_J1

PRI_J0

Power Card

Single Port Cable

Assembly

PRI_J2

PRI_J1

PRI_J0

WWN

SEC_J2

SEC_J0 SEC_J1

Port A Expander 1

J17

PRI_J2

PRI_J1

PRI_J0

Power Card

SEC_J2

WWN

SEC_J0 SEC_J1

Port A Expander 1

J17

Power Card

Figure 3-20: Cascaded Confi guration with Horizontal Branching

PRI_J2

PRI_J1

PRI_J0

WWN

SEC_J2

SEC_J0 SEC_J1

Port A Expander 1

J17

PRI_J2

PRI_J1

PRI_J0

Power Card

3-13

SAS-846EL Backplane User's Guide

Dual SAS HBA and Cascaded Confi guration

WWN

SEC_J2

Port B Expander 2

J17

HBA

HBA

Cable 0168L

(internal cable)

SEC_J2

WWN

Port B Expander 2

SEC_J0 SEC_J1

J17

PRI_J2

SEC_J0 SEC_J1

PRI_J1

Port A Expander 1

PRI_J2

PRI_J1

PRI_J0

Port A Expander 1

PRI_J0

Dual Port Cable

Assembly

Cable 0166L

(external cables)

Power Card

SEC_J2

WWN

Port B Expander 2

J17

Power Card

Figure 3-21: Dual SAS HBA with Cascaded Confi guration

SEC_J0 SEC_J1

PRI_J2

Port A Expander 1

PRI_J1

PRI_J0

3-14

Safety Information and Technical Specifi cations

Dual SAS HBA and Cascaded Confi guration with
Branching

Port B Ex. 2

HBA

HBA

Port B Ex. 2

Power

Card

Port A Ex. 1

Port A Ex. 1

Port B Ex. 2

Power

Card

Port B Ex. 2

Power

Card

Port A Ex. 1

Port A Ex. 1

Port B Ex. 2

Port A Ex. 1

Power

Card

Figure 3-22: Dual SAS HBA with Cascaded Confi guration and Branching

3-15

Port B Ex. 2

Power

Card

Cable 0166L

(external cable)

Port A Ex. 1

SAS-846EL Backplane User's Guide

The products sold by Supermicro are not intended for and will not be used in life sup­port systems, medical equipment, nuclear facilities or systems, aircraft, aircraft devices,
aircraft/emergency communication devices or other critical systems whose failure to per­form be reasonably expected to result in signifi cant injury or loss of life or catastrophic
property damage. Accordingly, Supermicro disclaims any and all liability, and should
buyer use or sell such products for use in such ultra-hazardous applications, it does so
entirely at its own risk. Furthermore, buyer agrees to fully indemnify, defend and hold
Supermicro harmless for and against any and all claims, demands, actions, litigation,
and proceedings of any kind arising out of or related to such ultra-hazardous use or
sale.

Disclaimer (cont.)

3-16