Cadena_Shane_activity4.2
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School
Carrington College, Sacramento *
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Course
203
Subject
Information Systems
Date
Dec 6, 2023
Type
docx
Pages
2
Uploaded by CaptainFlowerPheasant37
Activity 4.2
1.
What I Did
Outline the major steps you performed in the activity. Reference any
major problems you encountered and how you resolved them. Include
screenshots.
In this activity I read everything first, to have a better understand of what I need to
listen and pay attention to the most. Next, I watched all 4
videos and took notes.
Lastly, I read each question looked through my notes and wrote my responses.
2.
What I Learned
Summarize what you learned from the activity. Include major
points of what you learned or understood better after the experience.
What I learned in this activity was about RAID.
Till now I have not ever heard of
RAID. Now I have a better understand of how the performance, capacity, protection
of data when transferred and how its saved works. Which explains a lot especially
since I have another Laptop that I have been trying to figure out. With this activity it
has given me a better understanding.
Step 3
1.
What are the different types of RAIDs discussed in the lesson?
Five different types of RAIDs were discussed, which were RAID 0, RAID 1, RAID
5, RAID 6, and RAID 10.
2.
Which is considered to be the most used one in an enterprise environment?
RAID 5 is considered the most used and secure one in an enterprise
environment. It requires at least three drives; data blocks are striped across
the drives and on one drive a parity checksum of all the block data is written.
Business will have less downtown which in return saves them money.
3.
Does a RAID 0 protect against data loss?
(No backup of the RAID exists.)
No, RAID 0 does not protect against data loss. RAID0 is a method of striping
data across multiple drives, which can increase performance and capacity,
but it does not provide any redundancy or data protection. If one drive in a
RAID 0 array fails all data stored on that array will be lost.
4.
What is concatenated?
Concatenated is about volume, your able to add another volume, increase
available space. Which is referred to as JBOD (Just a bunch of Disks). They’re not any
faster than a single drive and offers No data protection.
5.
What is parity?
Parity is a technique that’s used to check if data has been lost and or written
over when data is being moved around from one area to another. It adds a
thing called checksums into the data which enables the target device to
determine
whether data was properly received correctly or if its missing
data.
6.
When should you use a RAID 0 vs. a RAID 1? Why?
When choosing between RAID 1 and RAID 0, organizations must decide
what is most important to them: performance, capacity, or fault tolerance. RAID 0
offers the best performance and capacity but no-fault tolerance. Conversely, RAID 1
offers fault tolerance but does not offer and capacity of performance benefits. They
are pretty much equal.
So, if you’re looking for quick with best
performance, capacity, and storing
temporary files or files that have backed up elsewhere. Overall, when needed
performance over data redundancy, RAID 0 is your choice.
7.
What did you learn about hardware costs vs. business costs?
What I learned is that cost of purchasing hardware is way different then
purchasing for a business.
Like mechanical hard drives are not as expensive
as I thought. With businesses the cost of repairing can and is very costly, due
to downtime, production, etc. However, they both require and recommend
that one stays proactive instead of being reactive.
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