I tested it and the partition gets filled at 123.58 GB, the 60GB is getting wasted. is there anything i can do about this? On Tue, Jul 13, 2010 at 6:46 AM, Chris Mason <chris.mason@xxxxxxxxxx> wrote: > On Sat, Jul 10, 2010 at 07:22:26AM +0530, jck wrote: >> Hello, >> when i check diskspace usage of a btrfs partition using df i get the >> wrong free space, this is expected i think. > > We do try to take the raid levels into account during df, but only for > the space that is already allocated. > >> However even when i use 'btrfs filesystem df' I get wrong freespace: >> Data: total=123.58GB, used=87.31GB >> Metadata: total=61.00GB, used=396.29MB >> System: total=32.00MB, used=16.00KB >> >> Does this mean that after the 123 GB of 'Data' fills up I wont be able >> to add more stuff to the partition? >> I'm using btrfs-progs-git (jul 10) > > This does reflect the space that is allocated, but the drive itself may > have more free space. btrfs filesystem show will give you a few more > details. > > Basically btrfs allocates from the drive in chunks of about 1GB and then > puts the file data or metadata into those chunks. So if you do a mkfs > and then create one file, you might have 1TB of space on the drive that > hasn't been allocated yet. > > -chris > > -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
