RK wrote: > I think so too -- I have six 1TB drives on RAID-10 btrfs and it shows > that I have 5.5TB free space .. how that can be ? > > # df -h > Filesystem Size Used Avail Use% Mounted on > /dev/sde1 66G 3.8G 59G 7% / > /dev/sda 5.5T 28K 5.5T 1% /mnt/btrfs
As has been discussed multiple times on the list, btrfs reports RAW storage so 6 x 1TB is 6 TB. And the use rate will be double for each block written (i.e. 2 blocks used) for raid10 (or raid1). And yes, it is "not what you expect", but it is the only method that can remain accurate under the mixed raid modes possible on a per-file-basis in btrfs. jim -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
