March 23, 20242 yr IIUC if I want snapshots of a share, I can format one array drive as zfs and limit the share to that drive. If I want more space than that, can I make a zpool out of two zfs drives in my unraid array? That way, I can snapshot the zpool and have a snapshot of the share even though the share is too big to fit on one drive. I wouldn't use RAIDZ and would rely on unraid's parity to give some protection. Is that a good idea? Thanks! Edited March 23, 20242 yr by NominallySavvyTechPerson
March 23, 20242 yr Community Expert Solution 3 minutes ago, NominallySavvyTechPerson said: IIUC if I want snapshots of a share, I can format one array drive as zfs and limit the share to that drive. If I want more space than that, can I make a zpool out of two zfs drives in my unraid array? That way, I can snapshot the zpool and have a snapshot of the share even though the share is too big to fit on one drive. I wouldn't use RAIDZ and would rely on unraid's parity to give some protection. Is that a good idea? Thanks! Nor possible. Each drive in the main array is a free-standing file system.
March 23, 20242 yr Author 3 minutes ago, itimpi said: Nor possible. Each drive in the main array is a free-standing file system. Sorry, that went over my head. I found this where someone talks about adding a zpool to the unraid array. I'm not trying to add a zpool to the array... wait, am I? I was thinking that there was a difference between adding a whole zpool of drives as if it were a single slot in unraid (not supported) vs what I want to do where I would fill two slots in unraid with two drives. Then, unknown to unraid, I can make a zpool out of the two drives.
March 23, 20242 yr Community Expert 2 minutes ago, NominallySavvyTechPerson said: Sorry, that went over my head. I found this where someone talks about adding a zpool to the unraid array. I'm not trying to add a zpool to the array... wait, am I? I was thinking that there was a difference between adding a whole zpool of drives as if it were a single slot in unraid (not supported) vs what I want to do where I would fill two slots in unraid with two drives. Then, unknown to unraid, I can make a zpool out of the two drives. Unraid does not support a file system that spans more than one drive in the main array.
March 23, 20242 yr Author Oh, maybe I understand now. Unraid looks at each drive and opens the filesystem there and merges them together. If I made a zpool out of two of them, I wouldn't have a filesystem on either of the two drives. Unraid would just ask me if I wanted to format the drives because they don't have any filesystem.
March 23, 20242 yr Author Ok, I think I see. What I should be asking is "can I add a zpool to unraid" which is already asked in that post that I linked to.
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