Building an Array Utilizing RAID Setup

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Table of Contents
Lesson 9...........................................................................................................................................3
Building an array utilizing RAID setup.......................................................................................3
How you design a system with 4 x identical 1TB hard disks......................................................6
Lesson 10.......................................................................................................................................10
Design considerations................................................................................................................10
Handle the USB devices............................................................................................................13
Reference list.................................................................................................................................15
Appendices....................................................................................................................................19

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Lesson 9
Building an array utilizing RAID setup
RAID (redundant array of independent disk) is the process of storing the same data on
multiple hard drives to protect from the failure of hard disks. All RAID levels do not represent
redundancy. The system works by putting data on multiple drives and start input-output
operations to overrun a balanced path. The use of different drives helps to shorten the time
between failures; this will also grow fault tolerance.
RAID arrays are introduced to the computer operating system as an individual logical
hard drive. The main function of this drive is to copy mirror data on different hard drives
available. The system separates each partition from 512 bytes to a lot of megabytes (Kreutz, et
al., 2015). Stripes of the disks are interlaced and placed in order. The size of RAID depends upon
user systems. Single user systems require a small number of data storage, but in an organization,
a lot of data is stored in hard disks.
Disk mirroring can be done using together in RAID 1 and RAID 10. A RAID controller
is used as a detachment between the operating system and hard drives. The controller is used for
improving performance and helps to protect data from crashing. This can be joined or designed
as a support drives like SATA and SCSI, it can also be a component of the motherboard.

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Fig 1: Different RAID Levels
(Source: Created by Author)
Different types of RAID levels are available for users like RAID adapters, Windows
software RAID, motherboard chipsets and consumer level (Maier, Laumer, Eckhardt & Weitzel,
2015)
JBOD is the type of RAID level which is used to extend the volume on other drives. The
level has no development in performance and it is useless nowadays to handle a large amount of
data. RAID 0 is used for disk stripping and crossing data between two drives. Dividing data into
two data busses this can be read or write easily. This level does not provide data protection and
increases the possibility of crashing failure.
RAID 1 provides full data protection between different data on hard drives. This level
reduces the chance of failure by 50%. Provide a 2TB drive for 2TB storage. RAID 1 generally
used for disk mirroring. RAID 5 requires at least three hard drives. The system distributes