this post was submitted on 02 Mar 2025
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It's A Digital Disease!

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Why are higher capacity drives more susceptible to failure during rebuilds on Raid 5? (zerobytes.monster)
submitted 6 months ago by bOt@zerobytes.monster to c/datahoarder@zerobytes.monster
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The original post: /r/datahoarder by /u/BobbythebreinHeenan on 2025-03-02 19:00:13.

I’ve seen people say repeatedly that Raid 5 is bad for larger capacity drives. because if one drive fails, there’s a high likelihood that another will fail during the rebuild. Honestly, this is what’s prevented me from considering Raid 5 for my 20tb drives.

can someone explain if this is just people being dramatic? Or are the higher capacity drives more vulnerable while rebuilding? Is there more chance of damage? Or is it just a, just in case because you already had one go out and if you lose another you’re screwed…

I don’t see the increased risk. Can someone explain?

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