See the "split" command with OpenZFS 0.8.0+: * https://utcc.utoronto.ca/~cks/space/blog/linux/ZFSSplitPoolExperience https://utcc.utoronto.ca/~cks/space/blog/l

See the "split" command with OpenZFS 0.8.0+: * https://utcc.utoronto.ca/~cks/space/blog/linux/ZFSSplitPoolExperience https://utcc.utoronto.ca/~cks/space/blog/linux/ZFSSplitPoolE... Only with mirrored drives. Any RAID-Z level would need a full export/import as data is striped, but hot-swap drives can be pulled once things are unmount.