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Questions around disk space and parity in unraid (lemmy.world)

submitted 11 months ago* (last edited 11 months ago) by LunchEnjoyer@lemmy.world to c/selfhosted@lemmy.world

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So I recently found out that I have sh*t my leg... I was about to set up unraid but just before dipping my toes I was told that the parity drive needs to be the same or larger in size, really wish I had done more thorough reseach before recently buying that 10TB HDD hehe...

My planned setup was; 250 GB - SSD (Cache) 1 TB - HDD (Parity) 2 TB - HDD (Pool) 10 TB - HDD (Pool)

So what are my option now that I have messed that up, what would you recommend? To go without parity or is there another way?

Any help is appriciated, I am still quite new to selfhosting/linux :)

UPDATE; I can trade the 10TB for two 4TB disks + the extra. Should I?

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[–] momsi@lemmy.world 2 points 11 months ago (1 children)

How I'd go above this is dependent on how much storage you expect to be using mid term/until you want/can buy another drive.

Must have 7TB ? Swap the 10tb for 2x4TB, then do 4TB parity 4+2+1TB as Data drives.

Is 3TB enough for the time being? Keep the 10TB and use as parity, 1+2TB as Data drives. When full, go for up to another 10TB as Data.

That second option is more upgradable in the future.

I'm guessing everyone meant Data drives by saying "pool". In unraid, Data drives are the ones protected by parity, in the array. Pools are "out of the array", not protected by parity.

[–] LunchEnjoyer@lemmy.world 1 points 11 months ago

Thanks for this! I actually just found yet another 2TB HDD that I had forgotten about, so I might just go for what you said! Leaves me with 5TB for now and 10TB for the parity.