[StavrosK]

Hmm, I don't understand how that's possible on RAID-Z? You can only have as much space per disk as the parity, no? I.e. you can't have three 500 GB disks for a total of 1 GB space, and replace one with a 1 GB disk and get more space, can you?

[rocqua]

The idea is to add disks rather than replace. So to go from 3x500GB to 4x500GB.

[StavrosK]

Oh, I see. In that case, it's odd to me that ZFS doesn't support that, hmm.

[nske]

Well, it was designed for by a company targeting enterprise customers. I guess this feature would be secondary for that market.