Hey All,

Newbie selfhoster here trying to figure out next best steps for my UnRAID install. Essentially, I got a little overzealous in my setup and didn’t quite provision things optimally, so I’m hoping to avoid having to start completely from scratch.

My drives: 2x8tb HDD, 2x14tb HDD, 1x1tb Nvme SSD, 1x2tb Nvme SSD

Array: all 4 HDDs, 1 parity, all formatted in ZFS

ZFS Pools: 1tb is standard UnRAID cache drive, 2tb is a slog (not certain if I’m using this term right; it’s used as temp storage for downloads before data gets moved to the array)

My issue: didn’t realize that the array in UnRAID doesn’t allow for actual zpool/raid configuration, so writes to the array are pretty slow. I want to speed it up.

What I want to do: move the 2x8tb HDDs off the array, wipe them, reconfigure them into a new pool in raid0 (insert equivalent z-term for ZFS here). Leave the 2x14tb HDDs in the array, keeping the 1 that’s there as parity.

My existing data: currently in the array, solely on the 14tb HDD not being used for parity. Nothing incredibly important, just media files and about 200gbs worth, but I’d like to keep that in tact.

My question(s): Because I have no data on the existing 2x8tb HDDs that are in the array, can I safely move them off the array and wipe them without concern for my data that currently exists on the array?

Will I have to rebuild the parity drive?

Should I preclear the drives I am looking to wipe?

Any other potential concerns I’m overlooking?

Sorry for going full noob on you all. I’ve been reading docs for what feels like a better part of a week, watching the guides, and I guess I’m just slow on the pickup and looking for some layman guidance. Also, sorry if this isn’t the right place to ask. I’ve got a secondary backup solution available, so I’m not worried about ZFS and it’s relatively new intro to UnRAID.