SAS2208 Datasheet, PDF (1/2 Pages) Broadcom Corporation. – PCI Express to 8-Port 6Gb/s SAS/SATA ROC

A P P L I C AT I O N S
n Direct attached ROC solution for
entry to mid-range servers
n SAS RAID host bus adapter
n Cost effective, single chip solution for
entry-level RAID storage systems.
n Storage Processor for external storage
applications (LSISAS2208SP)
F E AT U R E S
n High Performance IOP
– Dual PowerPC 440 @ 800MHz
– (2) 32KB L1 I/D caches
– (2) 1MB L2 caches
n Exclusive-OR hardware engine
for RAID 5
n RAID 6 hardware acceleration
n RAID Features
– MegaRAID® support with activation key
– RAID levels 0, 1, 5, 6 ,10, 50 and 60
– Integrated RAID
– RAID levels 0, 1, 1E and 10
n DRAM back-up at power fail using USB
n 6Gb/s SAS Interface
– 8 port SAS/SATA ROC 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
– T-10 Optical support
– SAS 2.1 power management
LSISAS2208
PCI Express to 8-Port 6Gb/s SAS/SATA ROC
Product Brief
Extending Its RAID And SAS Technology Leadership, LSI™ Introduces Its
Fifth Generation RAID-On-a-Chip (ROC)
LSI offers the broadest SAS product portfolio in the industry with true end-to-end
solutions — 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,
interoperable solution.
Overview
The LSISAS2208 is LSI’s third genera-
tion Serial Attached SCSI (SAS) RAID-
On-a-Chip (ROC) device based on five
generations of ROC technology and the
industry-leading Fusion-MPT™ (Mes-
sage Passing Technology) architecture.
The LSI SAS2208 integrates the latest
enhancements in SAS and PCI Express
technology.
The LSISAS2208 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 advance-
ments in lane and polarity reversal,
power management, hot plug support,
and MSI/MSI-X and legacy interrupt
generation.
3, and 6Gb/s per lane and automati-
cally negotiates between the speeds.
Enhanced features are supported
such as T-10 Data Protection Model for
early detection of and recovery from
data corruption, Spread Spectrum-
Clocking (SSC) for EMI reduction, and
data encryption for the protection of
confidential data as well as SAS 2.1
power management. The LSISAS2208 is
available with encryption and without
encryption.
The LSISAS2208 ROC integrates a 72-bit,
DDR3-1333 SDRAM interface, hard-
ware acceleration engines for RAID 5
and RAID 6 parity calculations, and the
high performance dual core, PowerPC
440 RISC processor that achieves 1600
Dhrystone MIPS (DMIPS) resulting in a
cost-effective ROC ideal for entry and
mid-range servers.
The eight-port ROC device provides
SAS and SATA data transfer rates of 1.5,
LSISAS2208