DC-200 RAID card User’s Manual
E3/E43
1. Introduction to the DC-200 RAID card
1.1 Understanding RAID concepts
RAID stands for Redundant Array of Independent Disks. RAID is a
method of combining several hard drives into one logical unit. It can offer
more fault tolerance and higher throughput levels than a single hard drive or
a group of independent hard drives.
Benefits of RAID
?? Provides real-time data recovery with uninterrupted access when a
hard drive fails
?? Increases system uptime and network availability
?? Protects against data loss
?? Provides multiple drives working in parallel to increase system
performance
1.2 Overview of DC-200 RAID card
The DC-200 RAID card delivers data protection and increased
performance to individuals and companies operating ATA drives for
workstations, entry-level servers, and rackmount server environments. The
DC-200 RAID card supports up to 4 drives with a maximum transfer rate of
100 MBytes/sec per channel. Its low-profile form factor makes it ideal for
ISP environments –offering maximum space for other server components.
A user-friendly GUI interface also provides instant access to all your
storage management needs.
The DC-200 is designed to take advantage of the latest Ultra ATA
protocol, with TWO independent PCI IDE Bus Mastering channels. This
design enables high performance RAID with inexpensive IDE devices.
You can choose either RAID 0 (striping) to improve the performance,
RAID 1 (mirroring) to safeguard your important data or RAID 0+1 (striping
& mirroring) to gain the performance of RAID 0 and the fault tolerance of
RAID 1 at the same time.
RAID 0 stripes two independent Ultra ATA channels and therefore,
doubles the throughput. RAID 1 mirrors the main operational HDD to the
other and duplicates an exact copy of data to the mirrored HDD in real time.
The transfer rate of RAID 1 is the same as that of regular hard disk access.
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