On Thu, Jul 17, 2014 at 10:02:01AM +0200, Swâmi Petaramesh wrote: > Hi there, > > Since a few days, I have noticed that "btrfs fi df /" displays an entry about > "unknown" used space, and I can see this on several Fedora machines, so it is > not an issue related to a given system... > > Does anybody know what these "unknown" data are ?
It's the block reserve, which used to be part of metadata, but is now split out to its own type. An updated userspace should be able to show it properly. Hugo. > i.e: > > # btrfs fi df / > Data, single: total=106.00GiB, used=88.28GiB > System, DUP: total=32.00MiB, used=24.00KiB > Metadata, DUP: total=1.00GiB, used=520.36MiB > unknown, single: total=176.00MiB, used=0.00 > > # btrfs --version > Btrfs v3.14.2 > > # uname -r > 3.15.5-200.fc20.x86_64 > > TIA, kind regards. > -- === Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk === PGP key: 65E74AC0 from wwwkeys.eu.pgp.net or http://www.carfax.org.uk --- Try everything once, except incest and folk-dancing. ---
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