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The subsystem comes in a cableless, backplane-based, high-density
3U chassis, with two (2) SCSI-320 host channels connected to two
(2) separate, dual-stacked VHDCI connectors. The VHDCI connectors
can either be connected to a host computer or cascaded to a second
Comet SATA II 16eU subsystem. The sixteen (16) SATA II
drive channels are routed through the backplane board to the sixteen
(16) drive trays installed on the front panel of the Comet subsystem.
The system combines massive storage capacity with SATA-II benefits,
such as high performance and full bandwidth in a safe subsystem
environment where the highest level of data availability is assured.
Infortrend's RAID functionality is unmatched in the industry in
terms of its wide variety of array configuration, maintenance, and
monitoring capabilities. The Comet SATA-II 16eU subsystem
provides IT professionals with versatile options to meet their needs.
Management
A variety of management interfaces are available:
The array can be accessed through the LCD keypad panel, RS-232C
terminal, telnet, or remotely through the Java-based RAIDWatch manager.
Administrators are automatically notified of array status using
any or all of the following notification methods: email, fax, LAN
broadcast, SNMP traps, MSN Messenger, ICQ, SMS messages, and the
configuration utility screen.
Architecture
Based on a highly innovative architecture designed for the most
demanding applications, the Comet SATA II 16eU subsystem
is equipped with Infortrend's latest core technology -- the ASIC400
RAID engine. The ASIC serves as a backbone integrating the 133MHz
CPU bus and dual PCI/PCI-X buses for I/O transactions. The calculation
of parity and distribution of data can be optimized with the free
association between individual logical arrays and different optimization
modes.
High Performance
Featuring two (2) 64-bit 133MHz data bus, the unparalleled bandwidth
makes the subsystem'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 2132MB/second. The dual independent system
bus design virtually eliminates all imminent bottlenecks on I/O
traffic, providing ample throughput for a wide range of applications
on workstations, Windows 2000//XP/2003, Linux-, or Unix-based servers.
These applications include disk-to-disk backup, video-on-demand,
CCTV, stream editing and others. The Comet SATA-II 16eU
subsystem exhibited performance, which meets the highest industry
standards. The end-to-end, dual host channel performance reaches
566MB/second read and 484MB/ second write with RAID 5 configuration.
If two bad blocks occur on two member drives of an array, the integrity
of the stored data is endangered. Media Scan, CAEN's innovative
intelligent drive handling function, retrieves data from the damaged
sectors. Media Scan handles low quality drives in both the degraded
mode and during the rebuild process. For additional data security,
other intelligent drive handling features include the transparent
resetting of non-responsive hard drives, power-failure management
and bad-drive handling during LD expansion.
For hands-free operation, the Task Scheduler is combined with Media
Scan so that the scanning operation can be scheduled to begin at
a specified start time and repeated at configured intervals. Each
such schedule can be defined to operate on individual hard drives,
all drives of a certain class, all member drives of a specified
logical drive, or all member drives of all logical drives.
Specifications
RAID Controllers
 State-of-the-art
PowerPC 600MHz RISC processor with 512KB embedded L2 cache
Custom-built ASIC400
with XOR engine and ECC inside
Standard 512MB to
2GB cache memory in one (1) DDR RAM DIMM
Optional battery
backup unit (BBU)
LCD control panel
interface
System fan speed/voltage/temperature
self-monitoring
Two (2) COM ports:
one for remote management and one for UPS support
One (1) 10/100BaseT
Ethernet port
Beeper
RAID Operation
RAID level 0, 1 (0+1),
3, 5, 6, 10, 30, 50, 60, NRAID and JBOD
Multiple array configuration
Hot-spare drive operation
Drive hot-swapping
Automatic background
rebuild
Online drive expansion
Intelligent drive
handling
Host Interfaces
Two (2) SCSI-320
channels
Drive Interfaces
SATA II 3Gps via
backplane; backward compatible with SATA-I
Sixteen (16) 1-inch
drive trays
Management
LCD keypad on a foldable
handle
System monitoring
via out-of-band Ethernet
RAIDWatch manager
software for all major platforms via an Ethernet port
COM port for local
access to firmware-embedded utility that is platform independent
Configuration client
for real-time event notification
Module failure alert
through I C bus
Requirements
Input Voltage: 100VAC
at 10A; 240VAC at 5A with PFC (auto-switching)
DC Output: 12V-32A;
5V-32A; 3.3V-30A
Relative Humidity:
5 to 95% non-condensing
Operating Temperature:
0 to 40 C
External Connections
Four (4) ports in
two (2) dual-stacked VHDCI SCSI connectors
Two (2) COM ports
(38400, n, 8,1)
One (1) RJ-45 Ethernet
port
Dimensions
3U, 19-inch rackmount
chassis
Chassis without handles:
445(W) x 130(H) x 488.2(D) mm
Chassis with handles:
482.6(W) x 131(H) x 504.3(D) mm
OS Support
Microsoft Windows 2000 Server
Microsoft Windows 2003 Server
Sun Solaris Ver. 8/9 Server
Red Hat Linux Ver. 8/9, Enterprise Ver. 3
SuSE: Linux Ver. 8/9
Download
the printable PDF from our FTP site!
Please contact our sales team at sales@caeneng.com or our service department at support@caeneng.com if you want to find out more!
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