Intel ICH5R Serial ATA RAID Introduction
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What is RAID 0 (striping)?
RAID 0 leverages the read/write capabilities of two or more hard drives
working in unison to maximize the storage performance of a computer system.
Data in a RAID 0 volume is arranged into blocks that are interleaved among
the disks so that reads and writes can be performed in parallel (see below
diagram). This technique, known as "striping", is the fastest of all of the RAID
levels, especially for reading and writing large sequential files. Real world
usage models where RAID 0 can be of particular benefit include loading large
files into an image editing application such as Adobe* Photoshop*, saving
large movie files in a video editing application such as Adobe* Premiere*, or
creating CD or DVD images with a CD/DVD authoring package such as Roxio*
Easy CD Creator*.
The hard drives in a RAID 0 volume are combined to form one volume
which appears as a single virtual drive to the operating system. For example,
two 40 GB hard drives in a RAID 0 array will appear as a single 80 GB hard
drive to the operating system.
No redundancy information is stored in a RAID 0 volume. This means
that if one hard drive fails, all data on both drives is lost. This lack of redun-
dancy is also reflected by the RAID level 0, which indicates no redundancy.
RAID 0 is not recommended for use in servers or other environments where
data redundancy is a primary goal.
Minimum Disks: 2
Advantage: Highest transfer rates
Redundancy: None - if one disk fails all data will be lost
Application: Typically used in desktops and workstations for
maximum performance for temporary data and
high I/O rate
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