SAS2308 Datasheet, PDF (1/2 Pages) Broadcom Corporation. – PCI Express to 8-Port 6Gb/s SAS/SATA Controller

A P P L I C AT I O N S
n Direct Attached SAS/SATA controller
solutions for entry to mid-range
servers
n Blade Servers
n External storage controllers requir
ing SAS/SATA interface for the
host or drive side connect
F E AT U R E S
n Integrated RAID – RAID Levels 0, 1,
1E, and 10
– Integrated MegaRAID® support
available upon request
n High Performance IOP
– PowerPC 440 @ 800MHz
n 6Gb/s SAS Interface
– 8 port SAS/SATA controller
– Supports 1.5Gb/s, 3Gb/s, and 6Gb/s
SAS and SATA data transfer rates
– Spread spectrum clocking
– Supports SSP, SMP, STP and SATA
protocols
– SAS and SATA device support
– Supports narrow and wide ports
– T-10 data protection model
– Optical Support and Advanced
Error Reporting (AER)
– PCI Express hot plug support
– Supports up to 1,000 devices
n PCI Express 3.0 Interface
– Supports x8, x4, x1 PCIe lanes at
a transfer rate up to 8.0 GT/s per
lane, full duplex
– Lane and polarity reversal
– SR-IOV (16 virtual functions)
– Supports End-to-End CRC (ECRC)
and Advanced Error Reporting (AER)
– PCI Express hot plug support
Preliminary Product Brief
LSISAS2308
PCI Express to 8-Port 6Gb/s SAS/SATA Controller
Extending Its RAID And SAS Technology Leadership, LSI™ Introduces Its
Third Generation Of SAS/SATA Controllers
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.
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
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
LSISAS2308