John Robinson a écrit :
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.
Cheers,
John.
Chances are that the hardware controler would not be compatible with
mdadm and you would have to backup and copy your data anyway.
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