Syba SB-ATA8212-133R - Manual (Page 4)

RAIDExpress 133 RAID USER MANUAL
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What is the RAIDExpress 133 card
This RAIDExpress 133 card is an excellent product resulting from Soc concept. It
includes one RAID Chip combining the CPU, firmware, advanced PCI controller and
IDE controller. Its architecture can provide users a RAID system with low CPU
utilization. When a PC is in the high CPU operation or PCI traffic, users won ’t have
any penalties for installing the RAID system. This is because this system embeds a
local CPU to deal with the RAID function and it ’s unnecessary to share CPU’s
performance. It is entirely different from the traditional software RAID system.
Similarly, it also provides users more system stability. It provides users high speed
and integration and a low price PC RAID system. Additionally, it also provides PCI
33MHz interface and is compatible with PCI spec. v2.2. It can be easily installed into
the PC system nowadays. Besides, we provide each OS a corresponding driver so
that users don ’t have to worry that their systems and the IDE RAID system have any
compatibility issue.
This RAIDExpress 133 card can support IDE drivers ranging from the lowest speed of
PIO mode drive to the highest speed of ATA/133 drive. Thus, users can use this
characteristic to combine RAID system without any limitations. Users can use
ATA/133 drive and RAID function to achieve the best performance and get the merit
of system ’s stability.
The RAIDExpress 133 card can support the RAID0 (striping), RAID1 (mirroring),
RAID0+1 (striping and mirroring) or JBOD (spanning) mode. When a system is
programmed to the RAID0 mode, it can read or write two drivers at the same time to
enhance the performance. When a system is programmed to the RAID1 mode, two
drivers have the same data and it will prevent data from being damaged. Once data
are damaged, the system will start the rebuild function automatically and save data
back to another new drive. Similarly, this system can use this data-copying
RAIDExpress 133 RAID USER MANUAL
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characteristic to let two drivers transmit at the same time and balance the
performance to raise the throughput. The RAID0+1 mode uses four drivers to get the
merits of RAID0 and RAID1. As for the JBOD mode, it combines more than two
drives into a drive with a large capacity. This mode does not have the RAID function
and its merits.