On 11/17/2011 7:59 AM, Arne Jansen wrote:
Right you are. So you want to sacrifice stripe size for space efficiency. Why don't you just use RAID1? Instead of reducing the stripe size for the majority of writes, I'd prefer to allow RAID10 to go down to 2 disks. This should also solve it.
Yes, it appears that btrfs's current idea of raid10 is actually raid0+1, not raid10. If it were proper raid10, it could use the remaining space on the 3 larger disks for a raid10 metadata chunk.
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