Intel SASMF8I User's Manual
Contents
1. RAID Controller SASMF8I fault tolerance features Table 4 Fault Tolerance Features Specification Intel RAID Controller SASMF8I Self Monitoring Analysis and Reporting Technology SMART support Detects up to 70 of all predictable disk drive failures and monitors the internal performance of all motors heads and drive electronics Drive Replacement Auto detection of hard drive failure Hot plug hot swap e User set rebuild rate Intel RAID Controller SASMF8I Hardware User s Guide 13 Table 4 Fault Tolerance Features Specification Intel RAID Controller SASMF8I Drive Rebuild Using Automatic at drive failure Hot Spares Auto resume of initialization or rebuild on reboot Error Checking and Parity generation and checking automatic consistency checking Indication Activity and fault LEDs Power Conservation Staggered spin up lower power requirements Electrical Characteristics This section provides the power requirements for the Intel RAID Controller SASMF8I Table 5 lists the maximum power requirements Table 5 Electrical Characteristics PCI PCI Express PCIPRSNT1 2 gl Express Power g 3 3 V Thermal and Atmospheric Characteristics PCI PCI Express Express 12 V PCI 5 0 V Temperature The thermal and atmospheric characteristics are Relative humidity range 5 to 90 non condensing e Maximum dew point temperature 32 C e Airflow must be at least2. rrnnrnnrrnnnnnnnrrvnnnnnnnvnvnnnnrnnnnnvrnrrnnnennnnenernnnnnnnnnr 1 JE ERE EE EE OE a 2 Redundancy and Error Handling 2sunsanesasismenimnoinaenvajnaeednintd je 2 SAS and SATA Features gear ee ene ee ee ee ee ee ee eee 3 Operating System Support 4 vesesmvmsssnmeonenneerinineeainvkeilveeveni snipe 4 Benefits of Serial Attached SCSI SAS rrrnrrnnnnnnnrvnnnnnavnnnnrnnrnnnnnrrrrrnnnnnnnrenernnnnnnnernrrnnseeennn 4 Chapter 2 Intel RAID Controller SASMF8I Hardware Installation eosesvnrenrnne 5 Requirements EEE ERE NE EE 5 installing the RAD Controller siressa orm ERE R t 6 Connecting the Cables aceite ress occatenseseetecewtdavestnsstvercentceaenametcereuid qunmnauet maiiadelnten cradaeeualene 9 Configuring the Storage Adapter rrrrnnannnvnnnnnnnrnnnnvrnrrnnnnnnnnrnnnnnnannnnrnnnnnnnnrnnranenennnnennnnnnnnnnnne 9 Replacing a Controller RE 10 Chapter 3 Intel RAID Controller SASMF8I Characteristics n ssesvrvervenervensenenn 11 Technical Specifications lt cccccsssecetestnctedavetdeeadeactsncce dente savant inten ciueaetandegettaetalancedueubards catecetecass e 12 Array Performance Features 25 2 ceis ease cteieweseabesebaepteseysveti acetate da 13 Fault Tolerance endre 13 Electrical Characteristics save Ree 14 Thermal and Atmospheric Characteristics rrrrnrrnnnnnnnvrnnrnrnrrnnnnrnrrrnnnnnnnnnnnernnrnnnsrennr 14 Safety Character iSues saccccuiasiscereresixnareadscenewdunnashereniuaheesarenceteesaacuenentaeuede
3. RAID Controller SASMF8I you must configure the storage adapter and install the operating system driver The Intel J7 IR RAID Intel IT IR RAID Software User 5 Guide instructs you on the configuration options and how to set them on your Intel RAID Controller SASMF8I and provides detailed installation instructions for operating system drivers Intel RAID Controller SASMF8I Hardware User s Guide 9 Replacing a Controller To replace a failed controller follow these steps 1 Power off the computer all drives enclosures and system components Remove the power cord 2 Remove the chassis cover and access the PCI Express add in card slots For instructions see your server documentation 3 Disconnect the cable s from the RAID controller 4 Remove the failed controller from the system 5 Insert the replacement controller into the system For instructions see Installing the RAID Controller 10 Intel RAID Controller SASMF8I Hardware User s Guide 3 Intel RAID Controller SASMF8I Characteristics This chapter describes the characteristics of the Intel RAID Controller SASMF8I Figure 4 displays the connectors and headers on the controller and Table 1 describes them oooo0000 o0000000 ooo M B Ports 4 7 Ports 0 3 AF002652 Figure 4 Card Layout Table 1 Jumper Descriptions Jumper Description Type Comment
4. For details on how to configure the storage adapters and for an overview of the software drivers see the Intel IT IR RAID Software User s Guide on the Resource CD Audience This document assumes that you have some familiarity with storage disk controllers RAID technology and related support devices The people who benefit from this book are Engineers who are designing an Intel RAID Controller SASMF8I for a system Anyone installing an Intel RAID Controller SASMF8I in a software RAID system Organization This document includes the following chapters and appendixes e Chapter 1 provides a general overview of the Intel RAID Controller SASME8I e Chapter 2 describes the procedures for installing the Intel RAID Controller SASMF8L e Chapter 3 provides the characteristics and technical specifications for the Intel RAID Controller SASMF8I Appendix lists and explains the terms and abbreviations used in this manual Related Publication The Intel IT IR RAID Software User 5 Guide on the Resource CD that is included with the RAID controller Intel RAID Controller SASMF8I Hardware User s Guide jii Intel RAID Controller SASMF8I Hardware User s Guide Table of Contents PY GRACE RE TA iii OE re iii OrJANIZATOM sure iii Related PIG NN are iii Chapter 1 OvervieW sitecctavccacscstscacsdaucouecssecadsinancatasntienedaddaddanutanstanuedduanaoameleuseaaanzaniia 1 Summary of SAS RAID Controller Features
5. 200 linear feet per minute SFPM to avoid operating above the maximum ambient temperature The storage and transit environment conditions are e Temperature range from 30 C to 80 C dry bulb e Relative humidity range 5 to 90 non condensing Safety Characteristics The Intel RAID Controller SASMF8I meets or exceeds the requirements of UL flammability rating 94 VO Each bare board is also marked with the supplier name or trademark type and UL flammability rating For the boards installed in a PCI Express bus slot all voltages are lower than the SELV 42 4 V limit 14 Intel RAID Controller SASMF8I Hardware User s Guide The design and implementation minimizes electromagnetic emissions susceptibility to radio frequency energy and the effects of electrostatic discharge The adapter carries the CE mark C tick mark FCC self certification logo Canadian compliance statement Korean MIC Taiwan BSMI and Japan VCCI The adapter meets the requirements of CISPR Class B This adapter matches the description in CCSA C22 2 No 60950 1 UL60950 1 First Edition listed accessory UL filenumber E257743 Intel RAID Controller SASMF8I Hardware User s Guide 15 A Glossary of Terms and Abbreviations BIOS Configuration Device Driver Domain Validation EEPROM External SAS Device Host Host Adapter Board HAB Internal SAS Device Main Memory NVRAM Peripheral Devices Basic Input Output System Software that
6. a higher bandwidth per pin than parallel SCSI and improves signal and data integrity The SAS interface uses the proven SCSI command set to ensure reliable data transfers while providing the connectivity and flexibility of point to point serial data transfers The serial transmission of SCSI commands eliminates clock skew challenges The SAS interface provides improved performance simplified cabling smaller connectors lower pin count and lower power requirements when compared to parallel SCSI SAS controllers leverage a common electrical and physical connection interface that is compatible with Serial ATA technology The SAS and SATA protocols use a thin 7 wire connector instead of the 68 wire SCSI cable or 40 wire ATA cable The SAS SATA connector and cable are easier to manipulate allow connections to smaller devices and do not inhibit airflow The point to point SATA architecture eliminates inherent difficulties created by the legacy ATA master slave architecture while maintaining compatibility with existing ATA firmware 4 Intel RAID Controller SASMF8I Hardware User s Guide 2 Intel RAID Controller SASMF8I Hardware Installation This chapter describes the procedures used to install the Intel RAID Controller SASMF8I with internal connectors Requirements The following items are required to install a Intel RAID Controller SASMF38I An Intel RAID Controller SASMFS8I A host system with an available x4 bi directiona
7. memory which is directly accessible by the CPU usually synonymous with RAM Non volatile Random Access Memory An EEPROM Electronically Erasable Read Only Memory chip used to store configuration information See EEPROM A piece of hardware such as a video monitor disk drive printer or CD ROM used with a computer and under the computer s control SCSI peripherals are controlled through a SAS Intel RAID Controller SASMF8I Intel RAID Controller SASMF8I Hardware Guide SAS SAS Device Serial attached SCSI A serial point to point enterprise level device interface that leverages the proven SCSI protocol set The SAS interface provides improved performance simplified cabling smaller connections lower pin count and lower power requirements when compared to parallel SCSI SAS controllers leverage a common electrical and physical connection interface that is compatible with Serial ATA The SAS controllers support the ANSI Serial Attached SCSI standard version 1 0 In addition the controller supports the Serial ATA SATA protocol defined by the Serial ATA specification version 1 0a Each port on the SAS RAID controller supports SAS and SATA devices Any device that conforms to the SAS standard and is attached to the SAS bus by a SAS cable This includes SAS storage adapters host adapters and SAS peripherals Intel RAID Controller SASMF8I Hardware Guide 17
8. provides basic read write capability Usually kept as firmware ROM based The system BIOS on a server board is used to boot and control the system The BIOS on your host adapter acts as an extension of the system BIOS The way a computer is setup the combined hardware components computer monitor keyboard and peripheral devices that make up a computer system and the software settings that allow the hardware components to communicate with each other A program that allows a microprocessor through the operating system to direct the operation of a peripheral device A software procedure in which a host queries a device to determine its ability to communicate at the negotiated data rate Electronically Erasable Programmable Read Only Memory A memory chip typically used to store configuration information It provides stable storage for long periods without electricity and can be reprogrammed See NVRAM A SAS device installed outside the computer cabinet These devices are connected together using specific types of shielded cables The computer system in which a storage adapter is installed It uses the storage adapter to transfer information to and from devices attached to the SCSI bus A circuit board or integrated circuit that provides a device connection to the computer system A SAS device installed inside the computer cabinet These devices are connected together using an unshielded ribbon cable The part of a computer s
9. via two SFF8087 connectors Support for both enterprise class SAS devices and enterprise class SATA II drives Support for up to 8 SAS or SATA II drives and 40 logical drives e PCI Express connector that fits into a x4 PCI Express slot capable of 2 5 Gbps per lane over PCI Express x1 or x4 3 0 Gbps point to point transfer rate e Botha standard and a low profile bracket Intel RAID Controller SASMF8I Hardware User s Guide 1 The SAS controller supports the ANSI Serial attached SCSI SAS Standard Version 1 0 In addition the controller supports the Serial ATA SATA protocol defined by the Serial ATA Specification Version 1 0a The SAS controller is a versatile controller that supports both the SAS and SATA interfaces and provides the backbone of both server and high end workstation environments Protocols supported include Usability Serial SCSI Protocol SSP Communication with other SAS devices SATA II Protocol Communication with other SATA II devices Serial Management Protocol SMP Topology management information sharing with expanders Serial Tunneling Protocol STP support for SATA II through expander interfaces Smaller thinner cabling with serial point to point 3 0 Gbps data transfer rates Allows mixed connections to SAS or SATA II targets Support for non disk devices and mixed capacity drives Support for software RAID levels 0 1 5 and 10 Global hot spare with auto rebuild if an array drive
10. Intel RAID Controller SASMF8I Hardware User s Guide Intel Order Number E33625 003 DISCLAIMER INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL R PROD UCTS NO LICENSE EXPRESS OR IMPLIED BY ESTOPPEL OR OTHERWISE TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT EXCEPT AS PRO VIDED IN INTEL S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS INTEL ASSUMES NO LIABILITY WHATSOEVER AND INTEL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY RELATING TO SALE AND OR USE OF INTEL PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE MERCHANTABIL ITY OR INFRINGEMENT OF ANY PATENT COPYRIGHT OR OTHER INTELLECTUAL PROP ERTY RIGHT Intel products are not intended for use in medical life saving life sustaining applications Intel may make changes to specifications and product descriptions at any time without notice Intel is a trademark or registered trademark of Intel Corporation or its subsidiaries in the United States and other countries Other names and brands may be claimed as the property of others Copyright 2008 by Intel Corporation Portions Copyright 2005 2007 by LSI Logic Corporation All rights reserved Intel RAID Controller SASMF8I Hardware User s Guide Preface This is the primary reference and user s guide for the Intel RAID Controller SASMF8I which can be used for SAS and SATA II disk drives It contains installation instructions and specifications
11. esiennuereeteneweeabes 14 A Glossary of Terms and Abbreviations ssvvvnnnnnnnnnvnnnnnnnnnnnnnnnnnnnnnnnnnnnvnnnnnnnnnnnnnen 16 Intel RAID Controller SASMF8I Hardware User s Guide V vi Intel RAID Controller SASMF8I Hardware User s Guide List of Figures Figure 1 Inserting the Intel RAID Controller SASMF8I into a END ERR ER e ere 6 Figure 2 Attaching cables to the Intel RAID Controller SASMF8 rrrsvrservrrevrrverveverserersernenn 7 Figure 3 SAS and SATA Plugs and SAS Backplane Connector wrrrnnrrnnrrrrrnnnnrnvrrnnnrnnnnnnnnnr 9 Figure 4 Card Ey OS EEE NE EEE 11 Intel RAID Controller SASMF8I Hardware User s Guide vii viii Intel RAID Controller SASMF8I Hardware User s Guide List of Tables Table 1 Jumper Descriptions NNN 11 Table 2 Specifications rer 12 Table 3 Array Performance Features ccccsccssccscccaeccecceeceeeccecececececeeecceecececeeeeeeseeeseneseeess 13 Table 4 Fault Tolerance Features rrrrrrnrrnrrnnannnvvrranenvrnrannnnenranennenrrnsnnenennnnnenennnnnenennunnenennvnee 13 Table 5 Electrical Characteristics rrrrrrrnrnrnnrrrrrrrvvrnrrarnnnrnrrnvnvnrerrnrnnsnererennenrnrnannserssesenenrnnrn 14 Intel RAID Controller SASMF8I Hardware User s Guide Intel RAID Controller SASMF8I Hardware User s Guide 1 Overview This chapter provides a general overview of the Intel RAID Controller SASMF8L It consists of the following sections Summary of SAS RAID Con
12. fails Fixed RAID stripe size of 64 KB Advanced array configuration and management utilities that provide Drive migration Drive roaming An upgradeable Flash ROM interface Allows for staggered spin up hot plug and lower power consumption User specified rebuild rate of system resources to use from 0 100 Warning Exceeding 50 rate may cause operating system errors caused by waiting for controller access Background operating mode can be set for rebuilds consistency checks and initialization auto restarting consistency check on redundant volumes Redundancy and Error Handling Enclosure management support including LEDs Activity and fault indicators per drive port selector dual port drives Drive coercion auto resizing to match existing disks Auto detection of failed drives with transparent rebuild Disk activity I O to the drive must be present for a missing drive to be marked as failed Intel RAID Controller SASMF8I Hardware User s Guide e Auto resume of initialization or rebuild on reboot the auto rebuild feature must be enabled before virtual disk creation e Smart initialization automatically checks consistency of virtual disks if there are five or more disks in a RAID 5 array which optimizes performance by enabling read modify write mode RAID 5 arrays of only three or overdrives use peer read mode Smart Technology predicts failures of drives and electronic components Commands are retr
13. ied at least four times e Firmware provides best effort to recognize an error and recover from it if possible e Failures are logged from controller and drive firmware SMART monitor and SAF TE controller e Failures are logged in Intel RAID Web Console 2 or CIM and can be viewed from LEDs e Multiple cache options provide choice of speed and redundancy Disk Write Cache The data written done signal is returned when data is written to the drive or only to the drive s cache lt On default Write back mode enabled Faster because it does not wait for the disk but data will be lost if power is lost lt Off Write through mode enabled Slower but ensures data is on the disk Read Ahead Predicts the next read will be sequential and buffers this data into the drive s cache On Read Ahead mode enabled Faster in data sequential read mode but slower in data random read mode lt Off Non Read Ahead mode enabled Always reads from the drive after determining the exact location of each read e Redundancy through Configuration stored in non volatile RAM and on the drives COD Hot swap support SAS and SATA Features e Provides eight independent PHYs each supporting 3 0 Gbps and 1 5 Gbps SAS and SATA data transfers e Scalable interface that supports up to eight direct attached SAS SATA devices or eight logical devices Transfers data using SCSI information units e Supports SSP to e
14. ion to get into the Intel Embedded Server RAID Technology II Configuration Utility The firmware takes several seconds to initialize and then displays the Intel RAID Controller SASMF8I number and firmware version The numbering of the controllers follows the PCI slot scanning order used by the server board Intel RAID Controller SASMF8I Hardware User s Guide Connecting the Cables This section describes the cables used on the SAS controller and provides instructions for connecting SAS and SATA hard disk drives to the SAS RAID controller Note Use only straight SAS cables not cross over SAS cables The cable supplied with the Intel RAID Controller SASMF8I is for SATA drives or a SAS backplane connection A SATA connector consists of a signal connector and a power connector The SAS connector adds a bridge primary physical link between the signal connector and the power connector This means SAS backplane connectors can accept either drive type but SATA backplane connectors can ONLY accept SATA drives Figure 3 shows these connectors SAS Secondary IP Physical Link aw Serial Attached SCSI I g S i p Power SAS Backplane an Receptacle Connector lt SAS Primary Physical Link SAS Secondary Physical Link SATA SAS Primary Physical Link Physical Link AF002656 Figure 3 SAS and SATA Plugs and SAS Backplane Connector Configuring the Storage Adapter After installing the Intel
15. l PCI Express slot The Resource CD which contains drivers and documentation The cables provided with the RAID controller SAS or SATA II hard disk drives Note Intel Corporation strongly recommends using an uninterruptible power supply UPS Intel RAID Controller SASMF8I Hardware User s Guide Installing the RAID Controller To install the RAID Controller follow these steps 1 Power off the computer all drives enclosures and system components Remove the power cord from the computer 2 Remove the chassis cover and access the PCI Express add in card slots For instructions see your server chassis documentation 3 Align the controller s connector with a x4 PCI Express slot on the server board 4 Press down gently but firmly to ensure that the card is properly seated in the slot as shown in Figure 1 Secure the bracket to the computer chassis Bracket Screw Q Ssg Here D gt Main Board AF002653 Figure 1 Inserting the Intel RAID Controller SASMF8I into a PCI Express Slot 6 Intel RAID Controller SASMF8I Hardware User s Guide 5 Connect the SAS SATA cables from the backplane or hard drives to the RAID Controller Make sure the cables are properly connected to the controller ee rn nn Figure 2 Attaching cables to the Intel RAID Controller SASMF8I Note System throughput problems can occur if the SAS cables that come with the RAID controller are
16. nable communication with other SAS devices e Supports SMP to communicate topology management information e Supports single PHY or wide ports consisting of two three or four PHYs within a single quad port Intel RAID Controller SASMF8I Hardware User s Guide 3 Allows addressing of multiple SATA targets through an expander if using SATA 2 0 compliant hard disk drives e Allows multiple initiators to address a single target in a fail over configuration through an expander Operating System Support The Intel RAID Controller SASMF8I supports major operating systems including e Microsoft Windows Server 2008 Microsoft Windows Server 2003 and Microsoft Windows XP Red Hat Enterprise Linux 4 0 and 5 0 e SuSe Linux Enterprise Server 9 and 10 Note The operating systems supported by this controller may not be supported by your server board See the tested operating system list for your server board at http support intel com support motherboards server See also the Tested Hardware and Operating System List for the Intel RAID Controller SASMF8I to make sure the RAID controller supports your operating system Benefits of Serial Attached SCSI SAS SAS is a serial point to point enterprise level device interface that leverages the proven SCSI protocol set SAS is a convergence of the advantages of SATA SCSI and FC and is the future mainstay of the enterprise and high end workstation storage markets SAS offers
17. not used To minimize the potential for problems Use cables no longer than ten meters for SAS and one meter for SATA It is better to use the shortest possible cables The cable length should be reduced by about one foot 33 meters if using a backplane You may connect one device per SATA SAS cable either as a device or as an expander Route SAS cables carefully Use only straight SAS cables not cross over SAS cables 6 Replace components you needed to remove to access the PCI Express add in card slot For instructions see your server chassis documentation 7 Reinstall the chassis cover and reconnect the power cord s For instructions see your server chassis documentation 8 Reconnect any peripheral items you needed to disconnect 9 Turn the power on to the server and hard drives As the server powers up listen to be sure that the SAS and SATA devices are powered up before or at the same time as the computer boots Intel RAID Controller SASMF8I Hardware User s Guide 7 10 Watch the boot process until you see a BIOS message to inform you of the key combination to press to enter the Intel Embedded Server RAID Technology II Configuration Utility A message similar to the following appears Press lt CTRL gt lt E gt to run the Intel Embedded Server RAID Technology IT Configuration Utility This message times out after several seconds If you miss it you will pass the opt
18. rts 2x4 internal ports Supports 8 SAS SATA devices using expanders and 40 virtual disks Firmware 2 MB in reflashable flash ROM Compatible Devices e Mixed capacity mixed SATA II and SAS in different enclosures e Non disk devices including expanders Cabling Small thin cables that do not restrict airflow Shared connectors for multiple drive types Redundant Configuration Config on disk COD stores RAID configuration Enclosure Management I C out of band SES2 in band SAF TE LEDs Intel RAID Controller SASMF8I Hardware User s Guide Array Performance Features Table 3 lists the Intel RAID Controller SASMF8I array performance features Table 3 Array Performance Features Specification Intel RAID Controller SASMF8I PCI Express Host Data Transfer Rate 2 5 Gigabit s per lane Drive Data Transfer Rate 3 Gigabit s per lane Maximum Scatter Gathers 26 elements Maximum Size of I O Requests 6 4 Mbytes in 64 Kbyte stripes Maximum Queue Tags per Drive As many as the drive can accept Stripe Sizes 64 Kbyte Maximum Number of Concurrent Commands 255 Support for Multiple Initiators Yes Flexibility Drive migration Background Services Rebuild consistency check and initialization Cache Options Fault Tolerance Write back or write through read ahead and non read ahead Table 4 lists the Intel
19. s J1 Drive Fault LED 8x2 header LED signal to control front panel LEDs to reflect header the faulty drive J2 Port activity LED 8x2 LED signal for activity per port header header J4 Universal 4 pin For factory and debug use Asynchronous connector Receiver Transmitter UART J6 Internal SAS SATA SFF8087 Connection to SAS SATA devices port connector ports 4 7 Intel RAID Controller SASMF8I Hardware User s Guide Table 1 Jumper Descriptions Jumper Description Type Comments J7 Internal SAS SATA SFF8087 Connection to SAS SATA devices port connector ports 0 3 Jo Keyed IC 3 pin Out of band enclosure management SES2 connector connector Technical Specifications The design and implementation of the Intel RAID Controller SASMF8I minimizes electromagnetic emissions susceptibility to radio frequency energy and the effects of electrostatic discharge See the appendices for regulatory marks and certifications Table 2 lists the specifications for the Intel RAID Controller SASME8I Table 2 Specifications Specification Intel RAID Controller SASMF8I Operating Voltage 3 3 V 12 V Card Size Low profile MD2 PCI Express adapter card size 6 600 inches by 2 713 inches Array Interface to Host PCI Express Rev 1 0A x4 lane width 2 5 Gbps SAS Bus Speed 3 GBps per port point to point SAS Controller One LSI SAS 1068 controller SAS SATA Po
20. troller Features Benefits of Serial Attached SCSI SAS The Intel RAID Controller SASMF8I is a high performance PCI Express SAS RAID controller It provides reliability high performance and fault tolerant disk subsystem management This is an ideal RAID solution for the internal storage needs of mid to low end servers and workstations for use by workgroups and departmental sized organizations or individuals The Intel RAID Controller SASMEF8I offers a cost effective way to implement RAID in a server for internal storage The SAS controller allows you to use SATA II and SAS hard disk drives in the same system so you can take advantage of the benefits of each type of drive The controller supports up to eight devices including expander devices See the ANSI SAS Standard Specification Version 1 0 for more information about the use of expanders As the second generation PCI Express storage adapter the Intel RAID Controller SASMF8I addresses the growing demand for increased data throughput and scalability requirements across mid to low end servers and workstations Simplified cabling between drives is an additional benefit Summary of SAS RAID Controller Features Note In this document the term low profile refers to the height not the length of a PCI add in card The Intel RAID Controller SASMF81 is a low profile SAS RAID adapter with e An LSI 1068E SAS including SATA controller Eight independent internal ports provided
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