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TekSpek 's
RAID
Date issued:
In this guide we will be examining a popular method used for increasing the performance and reliability of your hard drives and data storage.
RAID stands for Redundant Array of Inexpensive Disks. RAID, which
can be implemented through hardware, software, or a combination
of the two, takes multiple physical disks and combines them into
a single, 'virtual' disk. The way in which RAID is implemented affects
the benefits that RAID provides.
How it works
There are a great many implementations of RAID, the most
common of which are discussed in this guide. For the desktop user
several of these types will not apply, so most users should concentrate
on RAID 0+1/1+0 or RAID 5; the others are included for background
information or as an aside.
A general rule of any RAID setup is that drives in the array should
be identical. If different sized drives are used, you may find all
the drives will be considered to be size of the smallest drive present.
Speed is determined in a similar fashion; if three 7,200rpm drives
are used along with one 5,400rpm drive, the array will be limited
by the slowest device.
