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Overview
Delivering unprecedented performance and reliability, the
scalable Comet Fibre 12 RAID subsystems integrate Caen's highly
acclaimed fibre-to-fibre RAID controllers with a wide range
of 12 hot-swappable, high performance, industry-standard FC-2G
drives in a single, uniquely designed, highly accessible storage
enclosure that is able to endure the extreme physical stresses
placed on storage subsystems today. Featuring two FC-2G host
channels the embedded FC-2G controller ensures superior performance,
extreme reliability and exceptional data availability in today's
most data-intensive storage environments. Two FC-2G host channels
guarantee high levels of data availability and security. Two
additional FC-2G expansion channels provide scalability options
enabling users to increase the overall capacity of the storage
network. Equipped with three fully redundant, hot-swappable
cooling fan modules and two fully redundant, hot-swappable
power supply units, the uniquely designed 19-inch rack mountable
enclosure has been customized to perform in the most rigorous
storage environments where data availability is an imperative.
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Highlights
 2Gbps
Fibre Host Channels; Transfer rate up to 200MB/sec for each channel
Two
FC Drive Channels supporting 12 FC drives with transfer rate up
to 200MB/sec
Two
2Gbps FC Expansion Ports shared with drive channels; Transfer rate
up to 200MB/sec for each channel
Multiple
Logical Drive configurations, each with a different RAID level
Auto-detection,
auto-rebuild, hot-spare, and hot-swappable
LUN
Filtering RAID-based and centralized access management in SAN
Up
to 1024 LUNs for host mapping
Intelligent
Drive Handling for managing bad blocks during rebuild and the manual
Media Scan function for data maintenance
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
Auto-Cache
Flush and Auto-Switch Caching Mode
Auto-Shutdown
shuts down the controller when certain critical environmental thresholds
are exceeded
Architecture
Running on architecture trusted by the most demanding applications,
the subsystem is capable of a high level of performance. Its 64-bit
separate-bus backbone is built around the 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 modes.
Featuring a 64-bit 133 MHz memory bus, the unparalleled bandwidth
makes the subsystem's high data throughput more than sufficient
for small to mid-sized servers or workstations. Data can be distributed
at a burst rate up to 1066MB/sec. The dual independent PCI bus design
virtually eliminates all imminent bottlenecks on IO traffic, providing
sufficient throughput for a wide range of applications on fibre-based
PCs, single-user workstations, NT, Linux, or Unix-based servers.
These applications include disk-to-disk backup, Video on Demand,
CCTV, and stream editing.
Intelligent Drive Handling
Media Scan is an innovative Intelligent Drive Handling function
that can be used for data retrieval from degraded or damaged hard
drives. If two bad blocks occur on two member drives of an array,
the integrity of the stored data will be endangered. Intelligent
Drive Handling capabilities can be used to retrieve data from the
damaged sectors. Media Scan is able to handle low quality drives
in both the degraded mode and during the rebuild process. Other
Intelligent Drive Handling features, which provide further data
security, include the transparent resetting of hung hard drives,
power failure management and bad drive handling during LD expansion.
SPECIFICATIONS
RAID Controller
State-of-the-art
400MHz RISC processor with 256KB embedded L2 cache
Infortrend
Proprietary ASIC133 with XOR engine and ECC inside
Standard
256MB 1GB cache memory in one SDRAM with optional BBU (Register
Memory Only)
LCD
controller panel interface
Management
Firmware-embedded Java-based GUI RAID manager
Centralized management of multiple arrays over in-band or Ethernet
Real-time event notification over Email, LAN broadcast, or SNMP
traps
Auto on-lining of cascaded enclosures
SES modules on JBODs
SNMP 2.0 MIBs with get and set commands
Firmware-embedded utility via LCD keypad or RS-232C port
Components
Redundant,
hot-swappable components, designed for no single point of failure
2U
RAID enclosure
Single
RAID controller
12
drive trays
Dual
redundant power supplies
2
hot-swappable fan modules
Drive Interface
3.5",
1" high disk drives
12
hot-swappable drive trays
Automatic
bad sector reassignment
Drive
hot-swappable via SCA-II connectors
Single
dual loop across 12 drives within enclosure
Maintenance and Availability
Optional
Li-ion battery support
Immediate
array availability
Drive
roaming, array configuration on drives
Auto-Switch cache policy and Auto-Shutdown
When a RAID controller detects conditions exceeding preset thresholds,
the following actions will be exerted to protect the hardware:
1. Automatically flush cached
data and switch the array's caching mode from write-back to write-through
2. Commence an auto shutdown
Environmental thresholds associated with the auto-shutdown feature
are user-configurable. Caching mode changes back to write-back once
normal condition is restored.
Physical/Electrical
Interfaces
4 SFP sockets using a short-wavelength adapter
One DB-9 RS-232C serial port (38400, n, 8, 1)
One RJ-45 Ethernet port
Power supply
2 redundant, hot-swappable power supplies with PFC
Input: 90~260VAC, 47~63Hz
Output: +5V, 25A max.; +12V, 24A max.; +3.3V, 20A max.; 350watts
capacity
Cooling fan
3 cooling fans in three separate modules
Operating temperature: 5 to 40°C
Non-operating temperature: -20 to 60°C
Relative humidity: 10~95%, non-condensing
Operating altitude: sea level to 10,000ft
Dimensions
Chassis dimensions: 88H x 446.2W x 486.5D mm
(w/ protrusions): 88H x 481W x 525D mm
Package dimensions: 344H x 600W x 670D mm
System weight (w/o drives)
Net weight: 18kg
Gross weight: 25.5kg
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