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mrgstiffler

SOLVED - Cache RAID5 shows wrong size

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I added a third SSD to my cache and set the balance to -dconvert=raid5 -mconvert=raid1. It ran the balance and finished just fine. It's showing 1.5TB free instead of the 1TB I would expect from RAID5. Is this just a display error or is it actually going to try and fail to use that space?

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Edited by mrgstiffler

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It's a btrfs limitation with raid5/6, used spaced will show correctly, available space will not account for parity, but since it still decreases with used space not much of a problem, also note that while you can use raid5/6, I use it myself, it's still less stable than other profiles, and a UPS is strongly recommended because of the the write hole issue that affects most raid5/6 implementations.

 

 

 

 

 

 

 

 

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