SentinelRAID 170

Highlights
•Four SCSI-320 I/O channels with I/O transfer rates up to 320MB/second for each channel
•Four SCSI-320 I/O expansion channels available on an optional daughter board
•Multiple Logical Drive configurations, each with a different RAID level
•Auto detection, auto rebuild, hot spare, and hot swap capability
•Up to 64TB per LD
•Up to 1GB SDRAM
•Variable rebuild priority to meet a variety of applications
•RAIDWatch: Browser-based GUI Manager on all major platforms

Overview
Infortrend's highly acclaimed SCSI-to-SCSI SentinelRAID 170 (SR 170) controller is designed to meet the high availability, high performance, and stringent fault tolerant requirements placed on RAID controllers operating in today's most extreme storage environments.

The SR 170 controller leverages RAID technology, providing a host system with high-speed, fault-tolerant disk storage. The SR 170 controller is an ideal solution for weaving a wide range of multiple hot-swappable, high-performance, industry-standard SCSI-320 hard drives into one or more contiguous volumes, as well as enhancing storage availability, integrity, and performance.

With high-speed SDRAM modules and firmware in flash memory, a state-of-the-art 400MHz CPU performs all RAID functions on the SR 170 controller and supports RAID 0, 1 (0+1), 3, 5, 10, 30, 50, or JBOD RAID storage on any host system equipped with a SCSI-320 interface. The controller's operation is completely independent of the host operating system.

Four VHDCI SCSI connectors at the back of the controller board facilitate the connection of the four SCSI-320 I/O channels to external hosts and drives. All of the I/O channels can be configured as either host or drive.

An optional, easily installed, separately purchased daughter board can be used to increase the number of available SCSI-320 I/O channels from four to eight. The additional four I/O channels can also be configured as drive or host channels.

The SR 170 controller provides superior performance, extreme reliability and exceptional data availability. The controller is encased in a highly accessible, 5.25”, half-height chassis designed to endure the extreme physical stresses placed on RAID controllers in even the harshest RAID storage environments.

Architecture
Based on architecture designed to support the most demanding applications, the controller is capable of very high levels of performance. Its 64-bit separate-bus backbone is built around dedicated XOR engines running at twice the data bus speed. The calculation of parity and distribution of data can be optimized with the free association between individual logical arrays and different optimization settings.

High Performance
Featuring a 64-bit, 133MHz memory bus, the unparalleled bandwidth makes the controller's high data throughput more than sufficient for small-to-medium- sized servers or workstations. Data can be distributed at a burst rate up to 1066MBps. The dual-independent PCI bus design virtually eliminates all imminent bottlenecks on I/O traffic, providing sufficient throughput for a wide range of applications on workstations, Windows 2000/NT/XP-, Linux-, or Unix-based servers. These applications include disk-to-disk backup, video-on-demand, CCTV, stream editing, and others.

Specifications
RAID Controller
•State-of-the-art 400MHz RISC processor with 256KB embedded L2 cache
•Infortrend's proprietary ASIC with XOR engine and ECC inside
•Standard 128MB-1GB cache memory in one SDRAM with optional battery backup
•LCD panel interface
•System fan speed/voltage/temperature self-monitoring
•Two RS-232C serial ports, one serial port for text mode management and the other for UPS support
•One 10/100M Ethernet port
•32KB NVRAM with RTC (real-time clock)
•Beeper

Compatibility
•Host OS independent
•5.25-inch, half-height form factor
•Support for S.M.A.R.T.-capable drives

SCSI Operation
•SCSI-320 320MB/second per channel transfer rate with CRC data protection
•Up to 15 devices per channel, a maximum of 105 drives per controller
•Concurrent I/O commands
•Tagged command queuing
•Automatic bad-sector reassignment
•Built-in SCSI terminator
•Up to 12m cable length

RAID Operation
•RAID level 0, 1 (0+1), 3, 5, 10, 30, 50, NRAID and JBOD
•Multiple RAID selection
•Hot-spare drive operation
•Drive hot-swapping
•Automatic background rebuild
•Online drive expansion

I/O Interfaces
•Four SCSI-320 I/O Channels

Management Software
•System monitoring via out-of-band Ethernet
•RAIDWatch manager software for all major platforms via an Ethernet port
•Firmware-embedded manager via RS-232C (platform independent)

External Connections
•Four HD68 connectors
•Two RS-232C serial port connectors (38400, n, 8,1)
•One RJ-45 Ethernet port

Chassis Dimensions
•5.25-inch, half-height controller chassis:
•9.51(L) x 5.74(W) x 1.60(H) inches
•SI/ODM controller board: 8.31(L) x 5.51(W) inches