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LSISASX28 28-Port 3Gb/s Serial Attached SCSI Expander
http://lsilogic.com/storage
FEATURES
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28 fully-independent SAS and SATA ports 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
LSI LOGIC'S SERIAL ATTACHED SCSI (SAS) EXPANDERS PROVIDE GREATER SCALABILITY, FLEXIBILITY, AND PERFORMANCE BENEFITS FOR NEXT GENERATION ENTERPRISE STORAGE PRODUCTS OVERVIEW
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
(c)
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Port independent auto-negotiation 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 Direct, Subtractive decode, and table routing methodologies supported Provides a scalable interface that supports up to 1024 SAS addresses 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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management and supports many options for implementing enclosure management, 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.
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PHY-based zoning for system security SATA/SAS HDD spin-up sequencing, configurable on a per-PHY basis SGPIO (SFF-8485) support 8 GPIO pins 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
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.
LSISAS3442X
LSISAS3442X
FEATURES (Continued)
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Internal 8KB ROM can be used for boot-options External interface support - Flash or SRAM memory - EEPROM interface for non-volatile storage of hardware configuration
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LSISASX28 IC
SAS Drives
(up to 20)
LSISASX28 IC
LSISAS3442X
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External EEPROM not needed if internal ROM is used for boot options
LSISASX28 IC
(up to 16)
SAS Drives
- Three I2C interfaces Figure 2. Path Redundancy Application
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One I2C interface dedicated to communication with external SEP Two I2C interfaces for connecting external sensors
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LSISASX28 IC
(up to 20)
SAS Drives
- UART support for serial debugging - Supports JTAG testing
LSISASX28 IC
(up to 28)
SAS Drives
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Individual PHY power management 672 FPBGA package, 27 x 27mm, 0.13mm Gflx process technology Software Development Kit - Common programming model for internal and external processor support - API with sample code to implement enclosure management
Figure 1. Scalability Diagram
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For more information please visit the LSI Logic web site at:
http://lsilogic.com/storage
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
http://adapters.lsilogic.com 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 convey a license under any patent rights, copyrights, trademark rights, or any other of the intellectual property rights of LSI Logic or of third parties.
http://www.lsilogic.com/sas 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 fabrication 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 performance. Because of stringent quality management programs, our host adapters carry a three-year limited warranty. Copyright (c)2005 by LSI Logic Corporation. All rights reserved. Order No. S20178 12/05-2M - Printed in USA.

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