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SiI 4723 SATA to 2-Port 3Gb/s SATA SteelVine Storage Processor
Building on the proven SteelVineTM Storage Architecture, the Sil 4723TM provides a new level of affordable storage. The SiI 4723 provides 3Gb/s SATA performance over the single host SATA link as well as the dual device SATA links, and can be configured for internal or external (eSATA) applications. Until now, transfer rates of 3Gb/s and hardware RAID features were only available to enterprise class applications. SiI 4723 allows OEMs and system integrators to offer high-end features for price-sensitive mass market applications. Users of the SiI 4723 eliminate CPU loading by using the embedded RISC SteelVine storage processor. This innovative new technology provides approximately 6 times performance of USB 2.0 and approximately two times the performance of 1394b. The SiI 4723 embedded RISC storage processor was developed by Silicon Image and tuned for the needs of storage applications.This storage processor completely frees up the main CPU and provides the enhanced RAID mode completely from hardware. The device can be strapped in a single mode configuration to provide reliable data mirroring, data performance striping, or just plain capacity expansion. The SiI 4723 modes are: 1) SAFE or Data Mirroring (RAID 1) - allows device to automatically copy primary hard drive without any CPU loading. The SiI 4723 provides automatic rebuild on device replacement and auto-failover, to eliminate any workflow interruptions. 2) FAST or Data Striping (RAID 0) - allows the device to performance stripe the drives, to provide maximum throughput to the direct attached PC/Server. 3) BIG or Drive Spanning - allows the device to make any two drives (same or different sizes) appear as one large drive to the host, for extra capacity (also called concatenation). 4) JBOD or Port Multiplier -- this allows the direct attached PC/Server to see each drive as single drives (PM mode requires a host that is PM-aware.) The SiI 4723 works with any Serial ATA compliant host port, although more functionality is supported when it is connected to a Port Multiplier Aware host controller such as SiI 3124TM or SiI 3132TM. For more details, please contact your local Silicon Image sales representative.
FDD Power
Host SATA Port
Applications * External Storage Enclosures * Backup Systems * Embedded CE Applications * Video Editing Systems * Nearline DAS Storage * Protected SOHO/SMB Storage
Regulators
EEPROM
SiI 3124
3Gb/s
SiI 4723 SATA to 2-Port SATA Storage Processor
3Gb/s
Secondary Port B
3Gb/s
Secondary Port A
System Status GPIOs LEDs
I2C
Host Port
I2C
SATA Layers
XTAG Test LEDs
Config.
SiI 4723 Features
SATA to 2-Port 3Gb/s SATA SteelVine Storage Processor
Host Port Features
* * * * * * * * Supports one SATA host port, 3Gb/s Hot-plug support Tunneling mode for HDD firmware download Supports Asynchronous Notification SATA Port Multiplier spec. complaint Supports PM-aware host and non-PM aware Four detailed system/host status LEDs eSATA signal level support (1m and 2m PHY complaint)
EEPROM Logic SteelVine Storage Processor ATA Emulation
Enclosure Management Logic
JTAG
Mapping & Error Handling RAID & Virtualization SATA Layers & FIFOs
Device Port Device Port
Device Port Features
* * * * * * Two SATA device ports, 3Gb/s Complete SATA Port Multiplier function Hot Plug support Compatible with SATA NCQ drives Two LEDs for detailed status per port eSATA signal level support (1m and 2m PHY complaint)
* * * * * * * * * * * * * * * * * * * *
Data Protection Features
* * * * * * * * Automatic-Mirroring (RAID 1 mode) Self-healing data storage (Auto-Rebuild) Power-failure resume (Auto-Rebuild-Resume) Double protection (Auto-Rebuild-Verify) Minimizes Down Time (Automatic-Failover) 0% host CPU loading during rebuild Fast rebuild of 100GB/hour Automatic Configuration
Drive-failure alarm status pin Configuration pins for RAID mode changes Enclosure management bus (I 2C bus) Drive Performance Aggregation (RAID 0) Supports automatic bad sector remapping OS-agnostic operation Maximum of 4 hard drives* Bootable array and stagger spin-ups Mandatory SMART commands support ATAPI device support in PM mode Max. performance greater than 110MBps (RAID 0) Spread spectrum clocking w/SSC clock Event logging from GUI Remote monitoring and management Email notification** Manage multiple devices via GUI Field-upgradeable firmware Drive roaming on device ports 16 programmable GPIOs JTAG boundary scan and BIST support
Power and Package
* 364 HSBGA * 1.5 Watts (typical) * CMOS 0.18um
Hardware and OS Support
* SiI 4723 reference design board (PB4723001) * Windows XP, 2000, 2003, and Mac OS 10.3 / 10.4, and Linux RedHat, Fedora, SuSE 9.0 or later (see website for more updated OS support)
Documentation and Software Development Kit (CP4723001)
* SiI 4723 data sheet * PB 4723 functional specification * PB 4723 reference board schematics/ design files * Mgmt Graphical User Interface (GUI) Applet * API programmers guide for custom GUI developers * DOS HDD firmware download utility * SiI 4723 firmware download utility * Example XML configuration scripts
RAID Level Modes
* * * * FAST/RAID 0 SAFE/RAID 1 BIG/Spanning JBOD/Port Multiplier
Added Features with PM-Aware Host
When the SiI 4723 is used with a PM-aware host it can support the following additional features: * JBOD/Port Multiplier requires PM-aware host * Multi-Arrays per drive with PM-aware host * Drive splitting with PM-aware hosts * Mirror splitting or Multi-RAID partitions * Maximum of 4 hard drives*
* Requires three SiI 4723 devices, and each secondary device must be in a virtual mode. **Coming soon
System Features
* * * * Works without GUI (LEDs and Jumpers) Works without driver or agent running Works without BIOS updates System/host status LEDs (four)
(c)2005 Silicon Image, Inc. All rights reserved. Silicon Image, the Silicon Image logo, MSL, SATALink, the SATALink logo, SteelVine, the SteelVine logo, SiI, SiI 4723, SiI 3124 and SiI 3132 are trademarks or registered trademarks of Silicon Image, Inc. in the United States and other countries. Other trademarks are property of their respective holders. Product specifications are subject to change without notice. Printed in the U.S.A. SiI PB- 0062, Rev. 2 (8/05)
Silicon Image, Inc. 1060 E. Arques, Sunnyvale, CA 94085 T 408.616.4000 F 408.830.9530 www.siliconimage.com

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