LSISAS2308

PCI Express to 8-Port 6Gb/s SAS/SATA Controller

Preliminary Product Brief

A P P L I C A T I O N S

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DirectAttachedSAS/SATAcontroller

solutionsforentrytomid-range

servers

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BladeServers

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Externalstoragecontrollersrequir

ingSAS/SATAinterfaceforthe

hostordrivesideconnect

F E A T U R E S

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IntegratedRAID–RAIDLevels0,1,

1E,and10

–IntegratedMegaRAID®support

availableuponrequest

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HighPerformanceIOP

–PowerPC440@800MHz

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6Gb/sSASInterface

–8portSAS/SATAcontroller

–Supports1.5Gb/s,3Gb/s,and6Gb/s

SASandSATAdatatransferrates

–Spreadspectrumclocking

–SupportsSSP,SMP,STPandSATA

protocols

–SASandSATAdevicesupport

–Supportsnarrowandwideports

–T-10dataprotectionmodel

–OpticalSupportandAdvanced

ErrorReporting(AER)

–PCIExpresshotplugsupport

–Supportsupto1,000devices

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PCIExpress3.0Interface

–Supportsx8,x4,x1PCIelanesat

atransferrateupto8.0GT/sper

lane,fullduplex

–Laneandpolarityreversal

–SR-IOV(16virtualfunctions)

–SupportsEnd-to-EndCRC(ECRC)

andAdvancedErrorReporting(AER)

–PCIExpresshotplugsupport

Overview

The LSISAS2308 is the third genera-

tion of SAS controllers based on the

industry-leading Fusion-MPT™ (Mes-

sage Passing Technology) architecture.

The LSISAS2308 integrates the latest

enhancements in SAS and PCI Express

technology.

The LSISAS2308 supports 8 PCIe lanes

and complies with the PCI Express 3.0

specification that extends the PCIe

data rates up to 8.0 GT/s per lane, and

is backwards compatible to the 5.0/2.5

GT/s data rate supported by PCIe 2.x.,

1.x. It also incorporates enhancements

such as Single Root I/O Virtualization

(SR-IOV) with 16 virtual functions,

End-to-End CRC (ECRC) with Advanced

Error Reporting (AER) and the latest

advancements in lane and polarity

reversal, power management, hot plug

support, and MSI/ MSI-X and legacy

interrupt generation.

The eight-port controller device

provides SAS and SATA data transfer

rates of 1.5, 3, and 6Gb/s per lane and

automatically negotiates between

the speeds. Enhanced features are

LSI offers the broadest SAS product portfolio in the industry with true end-to-end solu-

tions — controllers, expanders, SAS to SATA bridge products, ROCs, host bus adapters,

RAID solutions, and external storage. LSI’s proven SAS core has completed extensive

stress and interoperability testing resulting in the industry’s most robust, interoper-

able solution.

supported such as T-10 Data Protec-

tion Model for early detection of and

recovery from data corruption, and

Spread Spectrum Clocking (SSC) for

EMI reduction.

The LSISAS2308 is ideal for the host or

drive side connect for external storage

controllers requiring a SAS/SATA inter-

face. The LSISAS2308 can support 1,000

devices and 10,000 outstanding IOs

without external RAM and can achieve

600,000 IOs per second.

The LSISAS2308 offered with LSI’s

Integrated RAID (IR) feature is a low

cost, high performance RAID solution

designed for blade, entry and mid-

range servers that require redundancy

and high availability but where a full

Extending Its RAID And SAS Technology Leadership, LSI™ Introduces Its

Third Generation Of SAS/SATA Controllers

LSISAS2308