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Exam DEA-1TT4 topic 1 question 103 discussion

Actual exam question from Dell's DEA-1TT4
Question #: 103
Topic #: 1
[All DEA-1TT4 Questions]

In a RAID 6 array with four disks, what is the total usable data storage capacity on the array if the disk size is 200 GB?

  • A. 200 GB
  • B. 400 GB
  • C. 600 GB
  • D. 800 GB
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Suggested Answer: B 🗳️
Reference:
https://docs.oracle.com/cd/E19871-01/820-1847-20/appendixf.html http://www.raid-calculator.com/default.aspx
by Peach2021 at Feb. 2, 2021, 1:07 p.m.

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Peach2021
Highly Voted 3 years, 11 months ago
B. 400 GB
upvoted 8 times
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Expert2000
Most Recent 3 years, 1 month ago
2 Disks for Storage and 2 Disks for Parity 2*200=400
upvoted 2 times
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RevSalt
3 years, 6 months ago
B is correct
upvoted 2 times
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abram09
3 years, 8 months ago
Correct D
upvoted 1 times
abram09
3 years, 8 months ago
Available Storage Capacity (%) [(n-2)/n]*100 n= number of disk page 230
upvoted 2 times
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JBONINO
3 years, 11 months ago
RAID 6 space = 1 - 2/n (n es el numero de discos del arreglo) = 1-2/4 => 50% del espacio total => 50%*800= 500GB
upvoted 2 times
laureano21
3 years, 7 months ago
50% de 800GB = 400GB
upvoted 2 times
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JBONINO
3 years, 11 months ago
total => 50%*800= 400GB
upvoted 3 times
...
...
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