On 30/05/2009 15:06, Maxime Boissonneault wrote:
I don't know how it goes for Linux, but hasn't ZFS been developped exactly for that purpose ? From what I understand, ZFS manage both the file system and the RAID features at once. Therefore, the "raid" part knows where are the files and the filesystem knows about the raid. Reconstruction is then done intelligently (not reconstructing unused space).
Yes, ZFS can do this, but ext4 and md could do it too, and probably will at some point. I prefer separating the layers, then I can switch one and not the other, e.g. start using a hardware RAID controller instead of md.
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