Description
Please check my attachment.
pls give quality and follow the criteria...
for example, knowledge on data center (sapdatacenter.com, datacenterknowledge.com etc)
and 1 thing , i learned only from raid level 0 (stripping),
1(mirroring),3(parity different disk),5(parity same disk 1 copy),6(parity same disk 2 copy). this may have to be related to the assignmnet. thanks
no plagirism 6 pages and A++ work please.
thanks
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Explanation & Answer
Running head: DATA STORAGE
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DATA STORAGE
Student’s Name
University Affiliation
Professor’s name
Course title
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DATA STORAGE
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Introduction
Redundant Array of Inexpensive Disks (RAID) is a data storage virtualization technology
which combines physical disks into single logical units to increase data redundancy and improve
the performance (HardBoiled, 2015). RAID is mostly used in data centers where data is
processed, analyzed and saved. The data is distributed in different ways which are known as
RAID levels which are selected depending on the performance and level of redundancy the
organization is looking for. The RAID levels have various advantages such as reliability,
preference, capacity and availability (Adaptec, 2005). The RAID levels are numbered from
RAID 0 to 6 and 10 with each providing the data centered with different capabilities. During the
selection of the most appropriate RAID level, various key concepts must be considered such as
capacity, cost, and availability and application performance needs (Lowe, 2010). Another critical
factor that must be considered for the selection of a RAID configuration is data protection. The
ability of the system to protect the data within the data canisters must be considered as the
security of data is critical to the efficiency of the data centers (Perumal & Kritzinger, 2004).
RAID configurations are made up of various disks and how data is stored within the disks
determines the ease at which the data can be lost or retrieved.
Application performance
Regarding performance RAID O is the bests as it beats the rests of the levels as there is
no RAID overhead. The disks system in RAID 0 can aggregate all the physical disks into a single
high performing storage pool which increases its efficiency in storing and retrieval of data
(Anderson, Swaminathan,Veitch, Alvarez & Wilkes, 2002). RAID 10 is another high preference
level since the data stored in this levels provide can be read from the different disks at the same
time and only suffers minor delays due to workloads (Adaptec, 2005). RAID 1 is also high in
DATA STORAGE
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application performance since it is a two disks system which doesn’t provide large data array but
provides higher performance (Lowe, 2010). RAID 5 is used for heavy workloads and has a good
performance. It is however limited due to the heavy write workloads. Its ability to write
information parity is affected and reduces as the storage of data increases leading to low overall
st...