Raid Level 0; Raid Level 1 - Dell Dimension T2310 Owner's Manual

NOTE:
RAID levels do not represent a hierarchy. A RAID level 1 configuration is not inherently better or
worse than a RAID level 0 configuration.

RAID Level 0

RAID level 0 uses a storage technique known as "data striping" to provide a high data access rate.
Data striping is a method of writing consecutive segments, or stripes, of data sequentially across
the physical drives to create a large virtual drive. Data striping allows one of the drives to read data
while the other drive is searching for and reading the next block.
Another advantage of a RAID level 0 configuration is that it utilizes the full capacities of the drives.
If you have two 120-GB drives installed, you have 240 GB on which to store data.
NOTICE:
Because RAID level 0 provides no data redundancy, if one drive fails, then the data on the other
drive is also inaccessible. Therefore, ensure that you perform regular backups when you use a RAID
level 0 configuration.

RAID Level 1

RAID level 1 uses a data-redundancy storage technique known as "mirroring." When data is written
to the primary drive, it is then duplicated, or mirrored, on the other drive. A RAID level 1
configuration sacrifices high data access rates for its data redundancy advantages.
serial ATA RAID
configured for
RAID level 0
segment 1
segment 3
segment 5
hard drive
segment 2
segment 4
segment 6
hard drive
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