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Architecture
This subsystem series offers a performance upgrade to the separate-bus,
dual-ASIC design proven on Caen's previous RAID controllers. The
series is specialized for flexible resource utilization to manage
various-size IOs, random, or sequential access that requires high-speed
throughput. The dual PCI bus design virtually eliminates all imminent
bottlenecks on IO traffic, providing sufficient throughput for a
wide range of applications on Disk-to-Disk Backup, cable CCTV storage,
video on demand (VOD), SCSI-based PCs, single-user workstations,
Windows NT/2000/XP, Linux, or Unix-based servers.
Firmware Capabilities
Numerous firmware options have been designed to achieve the highest
level of data availability and performance. In addition to the full-featured
RAID and Recovery functionality, firmware is able to manage possible
causes of data loss, even errors not directly related to RAID.
Automatic disk scanning can be carried out on a preset schedule
to prevent parity damage due to the occurrence of block errors across
multiple drives. Even if this happens, firmware is able to salvage
most data by skipping those un-repairable data blocks.
Array capacity can be expanded online by adding drives or replacing
the original drives with drives of larger capacity. Availability
features include the following:
 dedicated
and global spare drives
hot-swappable drives
duplex
support
remote
and real-time monitoring
SMART
related functions
Firmware operation is optimized with advanced algorithms capable
of intelligent read-ahead, multithreaded, predictive read-ahead,
optimized sorted and group writes.
Manageability
The Java-based RAIDWatch GUI manager provides easy-to-use interfaces,
is rich in configuration options, and allows users to remotely manage
their storage system over a network. Event Monitor and Notification
Processing Center (NPC) submodules provide system managers the freedom
of real-time monitoring with a variety of notification methods.
Enclosure
The subsystem is designed for operation with no single point of
failure. Its modular and dual-redundant design minimizes the time
for maintenance and service. Up to 7 JBODs can be cascaded with
a RAID unit to scale the capacity up to several terabytes (TB).
The included Loop resiliency circuits provide dual drive loops
consisting of 16 drives in either the RAID or JBOD units. The JBOD
models come with single or dual SES modules. Once a JBOD's drive
loops are connected with a RAID unit, its status will be automatically
collected and shown via the web-based graphical interface.
SAN Features
Capacity is made available in a SAN through LUN Filtering, a centralized
access management capability. Up to 1024 filtering entries are supported
and multiple entries can be mapped to each logical partition of
logical configurations. Various related functions, such as host
port auto-identification, filter type selection, entry naming, and
access mode configuration makes shared storage an easier task.
Download
the printable PDF from our FTP site (includes specifications for
four Comet Fibre models)!
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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