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Using disc spanning for RAID array (lemmy.world)

submitted 5 months ago by [email protected] to c/[email protected]

9 comments fedilink hide all child comments

I'm planning on building a new home server and was thinking about the possibility to use disc spanning to create matching disk sizes for a RAID array. I have 2x2TB drives and 4x4TB drives.

Comparison with RAID 5

4 x 4 TB drives

1 RAID array
12 TB total

4 x 4 TB drives & 2 x 2 TB drives

2 RAID arrays
14 TB total

5 x 4* TB drives

Several 4TB disks and 2 smaller disks spanned to produce a 4 TB block device
16 TB total

I'm not actually planning on actually doing this because this setup will probably have all kinds of problems, however I do wonder, what would those problems be?

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[–] [email protected] 3 points 5 months ago* (last edited 5 months ago)

If you don't need realtime parity, I've had no issues on my media server running mismatched drives pooled via MergerFS with SnapRAID doing scheduled parity.