IBM N2125 Installation manual

®
N2125 SAS/SATA HBA for IBM System x
Hardware User’s Guide
IBM P/N: 00D2416

First Edition (March 2013)
© Copyright IBM Corporation 2013.
US Government Users Restricted Rights -- Use, duplication or disclosure restricted by GSA ADP Schedule Contract with
IBM Corp.
N2125 SAS/SATA HBA for IBM System x Hardware User’s Guide
March 2013

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Table of Contents
N2125 SAS/SATA HBA for IBM System x Hardware User’s Guide
March 2013
Table of Contents
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
N2125 SAS/SATA HBA for IBM System x User Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 HBA Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Functional Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1 PCI Express Host Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2 SAS Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 Operating System Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5 N2125 SAS/SATA HBA for IBM System x HBA Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5.1 Flash. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5.2 LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5.3 Physical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5.4 Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.5 Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.6 Thermal and Atmospheric Limits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6 N2125 SAS/SATA HBA for IBM System x HBA Certifications and Safety Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7 Hardware Installation.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
8 Replaceable HBA Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Appendix A: Getting Help and Technical Assistance
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
A.1 Before You Call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
A.2 Using the Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
A.3 Getting Help and Information from the World Wide Web . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
A.4 Software Service and Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
A.5 Hardware Service and Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
A.6 IBM Taiwan Product Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Appendix B: Notices
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
B.1 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
B.2 Important Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
B.3 Documentation Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
B.4 Electronic Emission Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

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N2125 SAS/SATA HBA for IBM System x Hardware User’s Guide
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Safety
Safety
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Youq mwngz yungh canjbinj neix gaxgonq, itdingh aeu doeg aen
canjbinj soengq cungj vahgangj ancien siusik.

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N2125 SAS/SATA HBA for IBM System x Hardware User’s Guide
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Safety

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N2125 SAS/SATA HBA for IBM System x Hardware User’s Guide
March 2013
Safety

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N2125 SAS/SATA HBA for IBM System x Hardware User’s Guide
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Safety
Statement 28:
CAUTION:
The battery is a lithium ion battery. To avoid possible explosion, do not burn the
battery. Exchange it only with the approved part. Recycle or discard the battery
as instructed by local regulations.

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N2125 SAS/SATA HBA for IBM System x Hardware User’s Guide
March 2013
N2125 SAS/SATA HBA for IBM System x Hardware User’s Guide
Overview
N2125 SAS/SATA HBA for IBM System x Hardware User’s Guide
1Overview
The N2125 SAS/SATA HBA for IBM® System x® is a Serial Attached SCSI (SAS) host bus adapter (HBA) that provides
high-performance external storage connectivity for servers and workstations. The HBA provides eight lanes of 6Gb/s
SAS connectivity and is matched with eight lanes of PCIe 3.0 8Gb/s performance. The low-profile design of the SAS
HBA includes a full-height bracket and low-profile mounting bracket that creates a universal fit for any server. The HBA
is based on the Fusion-MPT™ architected LSI SAS 2308 controller that integrates the latest enhancements in PCIe 3.0
technology and 6Gb/s SAS technology.
The HBA has integrated Flash memory for the firmware and BIOS.
2HBAFeatures
This section lists the HBA features.
Implements one LSI SAS 2308 eight-port 6 Gb/s to PCIe 3.0 controller
Supports eight-lanes, full-duplex PCIe 3.0 performance
Supports eight external 6Gb/s SATA+SAS ports
Supports SAS link rates of 1.5Gb/s, 3.0Gb/s, and 6.0Gb/s
Provides two x4 external mini-SAS connectors (SFF-8088)
Supports up to 1024 SATA or SAS end devices
Offered with a full-height bracket and low-profile vented bracket
Provides one heartbeat LED
3 Functional Descriptions
3.1 PCI Express Host Interface
PCIe is a high-speed serial interconnect technology for interfacing I/O components to the processor and memory
subsystems. The LSI SAS 2308 controller interfaces to the PCIe interconnect providing timing and protocol compliance
with the PCIe specification. The interface is a PCIe 3.0 x8 interface providing 5.0 Gbps bandwidth.
3.2 SAS Interface
The LSI SAS 2308 controller chip contains the SATA + SAS functionality for the HBA. The following table shows the HBA
6 Gb/s SAS performance.
Table 1 6 Gb/s SAS Bandwidths
Half Duplex Full Duplex
Narrow port (one lane), 600 MB/s Narrow port (one lane), 1200 MB/s
Wide port (four lanes), 2400 MB/s Wide port (four lanes), 4800 MB/s

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N2125 SAS/SATA HBA for IBM System x Hardware User’s Guide
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N2125 SAS/SATA HBA for IBM System x Hardware User’s Guide
Operating System Support
4 Operating System Support
The HBA supports the following operating systems: Microsoft Windows, Red Hat Enterprise Linux Server, SUSE Linux
Enterprise Server (SLES), and VMware.
Refer to: http://www.ibm.com/systems/info/x86servers/serverproven/compat/us/xseries/controllers/matrix.html
for details on the software versions and device driver support.
5 N2125 SAS/SATA HBA for IBM System x Characteristics
5.1 Flash
The HBA has integrated Flash ROM for the firmware and BIOS. The HBA provides one 4 M x 16-bit Flash ROM for
storing the firmware and the BIOS.
5.2 LED
The HBA heartbeat LED, CR1, flashes green to indicate that the HBA is capable of general activity.
5.3 Physical Characteristics
The HBA is a 167.6-mm x 68.6-mm (6.6-in. x 2.7-in.), low-profile board. The component height on the top and bottom
of the HBA is in accordance with the PCIe specification. The following figure shows the board layout.
Figure 1 HBA Board Layout
EC1: PCIe x8-lane board edge connector
CR1: Heartbeat LED
J10, J11: SFF-8088, mini-SAS, external connectors
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N2125 SAS/SATA HBA for IBM System x Hardware User’s Guide
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N2125 SAS/SATA HBA for IBM System x Hardware User’s Guide
N2125 SAS/SATA HBA for IBM System x Certifications and Safety Characteristics
5.4 Connectors
This section describes the different connectors on the HBA. See Figure 1 for connector locations.
PCIe Connector (EC1). The HBA supports a x8 interface. The PCIe host interface connection is through the edge
connector (EC1), which provides connections on both the top (EC1B) and bottom (EC1A) of the board. The signal
definitions and pin numbers conform to the PCIe specification.
SAS Connectors (J10 and J11). The HBA supports SAS connections through connectors J10 and J11, which are
SFF-8088 mini-SAS, external connectors.
5.5 Power Requirements
The maximum power requirements for the HBA under normal operation are as follows:
PCIe 12.0 V = 1.3 A
Passive cable power values
—Nominal = 9.8 W
—Worst case = 16.0 W
5.6 Thermal and Atmospheric Limits
The atmospheric limits for the HBA are as follows:
Temperature range: 0°C to 55°C (32°F to 131°F) (dry bulb)
Relative humidity range: 5 percent to 90 percent noncondensing
Maximum dew point temperature: 32°C (89.6°F)
Minimum airflow: 200 linear feet per minute
The following limits define the storage and transit environment for the HBA:
Temperature range: −45°C to +105°C (−49°F to +221°F) (dry bulb)
Relative humidity range: 5 percent to 90 percent noncondensing
6 N2125 SAS/SATA HBA for IBM System x Certifications and Safety
Characteristics
The HBA meets or exceeds the requirements of UL flammability rating 94V-0. Each bare board is marked with the
supplier’s name or trademark, type, and UL flammability rating. Because these boards are installed in a PCIe bus slot,
all voltages are less than the SELV 42.4-V limit.
The design and implementation of the HBA minimizes electromagnetic emissions, susceptibility to radio frequency
energy, and the effects of electrostatic discharge.
The HBA meets the following integrated electromagnetic interference (EMI) compliance labels:
CE mark
CISPR Class B
C-Tick mark
Canadian Compliance Statement
FCC Class B, marked with the FCC Self-Certification logo
Japan VCCI

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N2125 SAS/SATA HBA for IBM System x Hardware User’s Guide
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N2125 SAS/SATA HBA for IBM System x Hardware User’s Guide
Hardware Installation
Korean KCC
Taiwan BSMI
The HBA meets the following environmental directives:
RoHS
WEEE
7 Hardware Installation

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N2125 SAS/SATA HBA for IBM System x Hardware User’s Guide
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N2125 SAS/SATA HBA for IBM System x Hardware User’s Guide
Hardware Installation
To install the HBA, follow these steps:
1. Unpack the HBA, and inspect it for damage. Unpack the HBA in a static-free environment. Touch the
static-protective package that contains the HBA to any unpainted surface on the outside of the server; then, grasp
the HBA by the top edge or upper corners, remove it from the package, and inspect it for damage. Contact your
IBM marketing representative or authorized reseller if the HBA appears to be damaged.
2. Prepare the server. Turn off the server, and disconnect the power cord from the rear of the power supply.
3. Remove the cover from the chassis.
4. Replace the HBA mounting bracket (system dependent). If required for your system, replace the full-height
mounting bracket that ships on the HBA with the low-profile bracket supplied. Save and reuse the two screws
that attach the long bracket to attach the short bracket.
5. Insert the HBA in an available PCIe slot. Locate an empty x8 PCIe slot and remove the expansion-slot cover for
the selected PCIe slot. Save the bracket screw, if applicable. Align the HBA with the PCIe slot and press down
gently, but firmly, to correctly seat the HBA in the slot. The following figure shows how to insert the HBA in a PCIe
slot.
Figure 2 Installing an N2125 SAS/SATA HBA for IBM System x in a PCI Express Slot
6. Secure the HBA bracket to the system chassis. Install the bracket screw, if applicable, or engage the system
retention mechanism to secure the HBA to the system chassis.
7. Connect SAS cables between the HBA and any SAS enclosures that contain the SATA or SAS devices.
Connect SAS cables between the HBA and any SAS enclosures. Figure2 shows the locations of the HBA
connectors. The HBA has two external x4 mini-SAS connectors. For external connections, use a cable with an
external mini-SAS connector (SFF-8088) on one end (to connect to the HBA) and the appropriate connector to
attach to the SAS or SATA devices on the other end.
ATTENTION Make a backup of your data before changing your system configuration to avoid the risk of
data loss.
NOTE The shape, size, and locations of components on your HBA and its bracket might vary from this
illustration. This HBA requires a x8 PCIe slot.
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N2125 SAS/SATA HBA for IBM System x Hardware User’s Guide
March 2013
N2125 SAS/SATA HBA for IBM System x Hardware User’s Guide
Replaceable HBA Components
8. Replace the cover and any power cords, and power up the system. Replace the chassis cover, reconnect any
power cords, and reconnect any network cables. Turn on the power.
The hardware installation of your HBA is complete.
8 Replaceable HBA Components
The IBM field replacement Unit (FRU) part number is 46C9011.

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N2125 SAS/SATA HBA for IBM System x Hardware User’s Guide
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Appendix A: Getting Help and Technical Assistance
Before You Call
Appendix A: Getting Help and Technical Assistance
A.1 Before You Call
A.2 Using the Documentation

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Appendix A: Getting Help and Technical Assistance
Getting Help and Information from the World Wide Web
A.3 Getting Help and Information from the World Wide Web
A.4 Software Service and Support
A.5 Hardware Service and Support
A.6 IBM Taiwan Product Service

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N2125 SAS/SATA HBA for IBM System x Hardware User’s Guide
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Appendix B: Notices
Appendix B: Notices

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N2125 SAS/SATA HBA for IBM System x Hardware User’s Guide
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Appendix B: Notices
Trademarks
B.1 Trademarks
B.2 Important Notes
IBM, the IBM logo, and ibm.com are trademarks of International
Business Machines Corp., registered in many jurisdictions worldwide.
Other product and service names might be trademarks of IBM or other
companies. A current list of IBM trademarks is available on the web at
"Copyright and trademark information"
at http://www.ibm.com/legal/copytrade.shtml
Adobe and PostScript are either registered trademarks or trademarks of
Adobe Systems Incorporated in the United States and/or other countries.
Cell Broadband Engine is a trademark of Sony Computer Entertainment, Inc., in the
United States, other countries, or both and is used under license
therefrom.
Intel, Intel Xeon, Itanium, and Pentium are trademarks
or registered trademarks of Intel Corporation or its subsidiaries
in the United States and other countries.
Java and all Java-based trademarks and logos are trademarks or registered
trademarks of Oracle and/or its affiliates.
Linux is a registered trademark of Linus
Torvalds in the United States, other countries, or both.
Microsoft, Windows, and Windows NT are trademarks of Microsoft Corporation in
the United States, other countries, or both.
UNIX is a registered trademark of The Open Group in the United States and other countries.
This product is not intended to be connected directly or indirectly by any means
whatsoever to interfaces of public telecommunications networks, nor is it intended
to be used in a public services network.

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Appendix B: Notices
Documentation Format
B.3 Documentation Format
B.4 Electronic Emission Notices

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N2125 SAS/SATA HBA for IBM System x Hardware User’s Guide
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Appendix B: Notices
Electronic Emission Notices
IBM Deutschland GmbH
IBM Technical Regulations, Department M372
IBM-Allee 1,71139 Ehningen, Germany
Telephone: [phone]
Email: [email protected]
European Community contact:

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N2125 SAS/SATA HBA for IBM System x Hardware User’s Guide
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Appendix B: Notices
Electronic Emission Notices
GmbH
Abteilung M372
39
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