LSISASx28
28-Port 3Gb/s Serial Attached SCSI Expander
http://lsilogic.com/storage
F E A T U R E S
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28 fully-independent SAS and SATA ports
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SSP, SMP, STP and SATA protocol support
SSP target and initiator
SMP target and initiator
STP target and initiator
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Supports 1.5 and 3Gb/s SAS and SATA
data transfer rates
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Port independent auto-negotiation
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Ports are non-denominational
Initiator or target connect
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Provides a low latency connection router
with crossbar module to efficiently create
and maintain connections
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Direct, Subtractive decode, and table
routing methodologies supported
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Provides a scalable interface that
supports up to 1024 SAS addresses
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Supports wide and narrow port configurations
Allows reuse of routing table resources
across all of the PHYs composing a
wide port
Allows any number of PHYs for wide
port support
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PHY-based zoning for system security
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SATA/SAS HDD spin-up sequencing,
configurable on a per-PHY basis
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SGPIO (SFF-8485) support
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8 GPIO pins
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3 LEDs per PHY
Link status, drive activity
fault LED outputs
Can be used as GPIOs
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Integrated ARM processor
SEP functionality
Drive management
Extended SAS SMP functions
L S I L O G I C ' S S E R I A L A T T A C H E D S C S I ( S A S ) E X P A N D E R S
P R O V I D E G R E A T E R S C A L A B I L I T Y , F L E X I B I L I T Y , A N D
P E R F O R M A N C E B E N E F I T S F O R N E X T G E N E R A T I O N
E N T E R P R I S E S T O R A G E P R O D U C T S
O V E R V I E W
The LSISASx28 is a 28-port 3Gb/s Serial Attached SCSI (SAS) expander with
an Integrated ARM
processor for Enclosure Management and extended SAS
SMP functions. This device offers enhanced Enclosure Services such as drive
management and supports many options for implementing enclosure man-
agement, including a backward compatible interface to an external processor
using existing code or implementing the internal processor using SSP target.
Phy-based zoning is also supported for network storage security applications.
The LSISASx28 expander is compliant with the ANSI Serial Attached SCSI
specification and supports SATA as defined in the Serial ATA: High Speed
Serialized AT Attachment and the Serial ATA II: Port Selector Specification.
SAS benefits include improved performance, simplified cabling, smaller
connectors, a lower pin count, and lower power requirements. In addition,
SAS leverages an electrical and physical connection interface that is compatible
with SATA technology. The interface compatibility allows for customer flexibility
in drive connection including the 2.5" hard disk drive small form factor.
The LSI Logic 28-port expander provides large storage environments the ability
to connect multiple targets and initiators through a switched device for
scalability and fault-tolerant path-redundancy to improve system reliability.
This is ideal for today's data center and storage subsystems, leveraging
existing SCSI infrastructure for investment protection and ease of migration
and implementation.
Technical Support
Tel: 800 633 4545
LSI Logic Corporation
North American Headquarters
Milpitas, CA
Tel: 866 574 5741 (within U.S)
408 954 3108 (outside U.S.)
LSI Logic Europe Ltd.
European Headquarters
United Kingdom
Tel: 44 1344 413200
LSI Logic KK Headquarters
Tokyo, Japan
Tel: 81 3 5463 7165
ISO 9001 Certified
LSI Logic, the LSI Logic logo design and Gflx are
trademarks or registered trademarks of LSI Logic
Corporation. ARM is a registered trademark of
ARM Limited, used under license. All other
brand and product names may be trademarks of
their respective companies.
LSI Logic Corporation reserves the right to make
changes to any products and services herein at
any time without notice. LSI Logic does not assume
any responsibility or liability arising out of the
application or use of any product or service
described herein, except as expressly agreed to in
writing by LSI Logic; nor does the purchase, lease,
or use of a product or service from LSI Logic con-
vey a license under any patent rights, copyrights,
trademark rights, or any other of the intellectual
property rights of LSI Logic or of third parties.
Warranty
For more than 15 years, LSI Logic host adapters have
been providing high-performance SCSI solutions
to leading server, disk array and computer systems
worldwide. Each host adapter carries a powerful
chip built in LSI Logic's ISO 9001-certified fabri-
cation facilities. Using only the highest quality
components, LSI Logic host adapters are
assembled and tested in world-class facilities to
assure superior product reliability and perform-
ance. Because of stringent quality management
programs, our host adapters carry a three-year
limited warranty.
Copyright 2005 by LSI Logic Corporation.
All rights reserved.
Order No. S20178
12/05-2M Printed in USA.
LSISASx28
28-Port 3Gb/s Serial Attached SCSI Expander
A software development kit is available
which provides a baseline SES
solution and can be customized by
the customer for unique solutions.
The same programming model can be
used for the internal processor or an
external SEP for seamless customer
migration.
LSISASx28
IC
LSISASx28
IC
LSISASx28
IC
LSISAS3442X
SAS
Drives
(up to 28)
SAS
Drives
(up to 20)
SAS
Drives
(up to 16)
Figure 1. Scalability Diagram
LSISASx28
IC
LSISASx28
IC
SAS
Drives
(up to 20)
LSISAS3442X
LSISAS3442X
Figure 2. Path Redundancy Application
F E A T U R E S ( C o n t i n u e d )
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Internal 8KB ROM can be used for
boot-options
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External interface support
Flash or SRAM memory
EEPROM interface for non-volatile
storage of hardware configuration
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External EEPROM not needed if
internal ROM is used for boot options
Three I2C interfaces
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One I2C interface dedicated to
communication with external SEP
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Two I2C interfaces for connecting
external sensors
UART support for serial debugging
Supports JTAG testing
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Individual PHY power management
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672 FPBGA package, 27 x 27mm,
0.13mm Gflx process technology
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Software Development Kit
Common programming model for
internal and external processor support
API with sample code to implement
enclosure management
For more information please visit the LSI Logic web site at:
http://lsilogic.com/storage
http://adapters.lsilogic.com
http://www.lsilogic.com/sas
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