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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

1

Overview

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. 

2

HBA  Features

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

Summary of Contents for N2125

Page 1: ... N2125 SAS SATA HBA for IBM System x Hardware User s Guide IBM P N 00D2416 ...

Page 2: ...13 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 ...

Page 3: ...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 Softwar...

Page 4: ...A for IBM System x Hardware User s Guide March 2013 Safety Safety Bu ürünü kurmadan önce güvenlik bilgilerini okuyun Youq mwngz yungh canjbinj neix gaxgonq itdingh aeu doeg aen canjbinj soengq cungj vahgangj ancien siusik ...

Page 5: ... 3 N2125 SAS SATA HBA for IBM System x Hardware User s Guide March 2013 Safety ...

Page 6: ... 4 N2125 SAS SATA HBA for IBM System x Hardware User s Guide March 2013 Safety ...

Page 7: ...e User s Guide March 2013 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 ...

Page 8: ...mplements 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 h...

Page 9: ... 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 b...

Page 10: ...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 t...

Page 11: ...System x Hardware User s Guide March 2013 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 ...

Page 12: ...over 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 applic...

Page 13: ... 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 ...

Page 14: ...TA HBA for IBM System x Hardware User s Guide March 2013 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 ...

Page 15: ...arch 2013 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 ...

Page 16: ... 14 N2125 SAS SATA HBA for IBM System x Hardware User s Guide March 2013 Appendix B Notices Appendix B Notices ...

Page 17: ...ntertainment 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 trad...

Page 18: ... 16 N2125 SAS SATA HBA for IBM System x Hardware User s Guide March 2013 Appendix B Notices Documentation Format B 3 Documentation Format B 4 Electronic Emission Notices ...

Page 19: ...are User s Guide March 2013 Appendix B Notices Electronic Emission Notices IBM Deutschland GmbH IBM Technical Regulations Department M372 IBM Allee 1 71139 Ehningen Germany Telephone 49 7032 15 2941 Email lugi de ibm com European Community contact ...

Page 20: ... 18 N2125 SAS SATA HBA for IBM System x Hardware User s Guide March 2013 Appendix B Notices Electronic Emission Notices GmbH Abteilung M372 39 41 lugi ...

Page 21: ... x Hardware User s Guide March 2013 Appendix B Notices Electronic Emission Notices This is electromagnetic wave compatibility equipment for business Type A Sellers and users need to pay attention to it This is for any areas other than home ...

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