LPI 201-450 Exam - Topic 3 Question 120 Discussion

Actual exam question for LPI's 201-450 exam

Question #: 120
Topic #: 3

[All 201-450 Questions]

What is the minimum number of disks required in a fully redundant RAID5 array?

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Suggested Answer: C

by Arlette at Jan 05, 2026, 05:16 AM

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Hoa

28 days ago

Definitely C) 3. Anything less won't give full redundancy.

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Frankie

1 month ago

I was torn between C) 3 and D) 4, but C feels right.

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Selma

1 month ago

Yeah, C) 3 makes sense. One for data, two for parity.

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Stephanie

1 month ago

I think it's C) 3. You need at least 3 disks for redundancy.

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Karl

2 months ago

That's surprising, I didn't know it was that low!

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Twana

2 months ago

Nope, definitely 3 disks.

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Glory

2 months ago

Wait, I thought it was 4?

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Dexter

2 months ago

Totally agree, 3 is the minimum!

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Ronnie

2 months ago

You need at least 3 disks for RAID5.

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Eric

2 months ago

Wait, is this a trick question? I bet the answer is actually 6 disks. You can never have too much redundancy!

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Carrol

3 months ago

Hmm, I thought RAID5 only needed 2 disks. This is trickier than I expected.

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Rebecka

3 months ago

E) 5 disks? That's way too many. The question clearly says "minimum".

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Simona

4 months ago

D) 4 disks is the minimum for a fully redundant RAID5 array. I'm pretty sure about this.

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Malcom

4 months ago

C) 3 is the correct answer. RAID5 requires a minimum of 3 disks.

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Beckie

4 months ago

I remember reading that RAID5 can survive one disk failure, so it has to be at least 3 disks. I hope that's correct!

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Antonio

4 months ago

I thought it was 3 disks too, but I keep mixing it up with RAID10. This is tricky!

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Joseph

4 months ago

I'm not too sure, but I feel like it might be 4 disks. I practiced a question like this before, but I can't recall the exact details.

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Allene

4 months ago

I think RAID5 needs at least 3 disks, right? I remember something about needing one for parity.

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Brittney

5 months ago

Hmm, I'm not too sure about this one. I know RAID5 needs multiple disks, but I can't remember the exact minimum. I'll have to think it through carefully.

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Corrie

5 months ago

I've got this! The minimum number of disks for a fully redundant RAID5 array is 4. The parity data is distributed across all the disks, so you need at least 4 to have full redundancy.

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