this post was submitted on 14 May 2024
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[–] [email protected] 7 points 6 months ago (3 children)

You can't have a three drive RAID 6 array.

Please just stop.

[–] [email protected] -5 points 6 months ago (2 children)

Oh thanks for the tip! I've edited my comment to reflect the minimum of 4 drives for a RAID6 array.

I've not used RAID6 for a small array like that before so I didn't know it had a conventional lower limit. From the technical sense it doesn't have to have 4 drives, it just wouldn't make any sense to use it that way so I see why software wouldn't support such a use case.

[–] [email protected] 4 points 6 months ago (1 children)

From the technical sense it doesn't have to have 4 drives

Please explain how you think you can distribute two sets of parity data across a three drive array?

[–] [email protected] 0 points 6 months ago* (last edited 6 months ago)

Drive 1: A, Drive 2: 1/2 A, Drive 3: 2/2 A. Drive 2 + Drive 3 = Drive 1. Hmm that would only be one set of the party though. So you could also add 1/2 of A to Drive 1, and 2/2 to Drive 2 so that the parity on Drive 1 + Drive 2 = Drive 3. Which is extremely silly, and doesn't make a lot of sense to use in the real world.