RAID technologies, or redundant array of independent disks, are used to improve the
reliability and performance of data storage. This technology allows data to be divided over
multiple levels for efficiency of use based upon the performance and redundancy required.
However, like all systems there are both advantages and disadvantages to using the technology.
One advantage of using RAID technology is that there is an overall improvement in the
system’s performance. Another advantage of using RAID technology is that there are high data
transfer rates and there is an increase in the throughput of the system. Additionally, the rate of
read requests is doubled because multiple disks can be used. Meanwhile, a major disadvantage to
using RAID technologies is the fact that the system’s overall reliability decreases because there
are more disks involved (Singh, 2006).
Using RAID technology assigns information and data to different levels. This means
numerous configurations can be utilized to store data. Each of the various configurations or
level a best situated for specific data, or data usage. There are 10 various RAID levels. However,
RAID 10 provides the most protection for cost.
RAID 10 combines the features of both RAID 0 and RAID 1 (Worden, 2004). The
stripping realized with RAID 0 provides greater performance in reading and writing operations
and storage capacity is multiplied, meanwhile the mirroring of data which occurs with RAID 1
helps protect the information, should one of the drives or disks fails. These manipulations of data
allow for greater protection of the data—data is increased and is not lost in the case of failure.
The other RAID levels also offer their own unique set of advantages. However, RAID 10 offers
the most advantage while still being an affordable option for data storage.
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