On Thu, Apr 6, 2017 at 6:47 PM, John Petrini <jpetr...@coredial.com> wrote:
> sudo btrfs fi df /mnt/storage-array/ > Data, RAID10: total=10.72TiB, used=10.72TiB > System, RAID0: total=128.00MiB, used=944.00KiB > Metadata, RAID10: total=14.00GiB, used=12.63GiB > GlobalReserve, single: total=512.00MiB, used=0.00B The third line is kinda scary. System chunk is raid0, so ostensibly a single device failure means the entire array is lost. The fastest way to fix it is: btrfs balance start -mconvert=raid10,soft <mountpoint> That will make the system chunk raid10. > > sudo btrfs fi usage /mnt/storage-array/ > Overall: > Device size: 49.12TiB > Device allocated: 21.47TiB > Device unallocated: 27.65TiB > Device missing: 0.00B > Used: 21.45TiB > Free (estimated): 13.83TiB (min: 13.83TiB) > Data ratio: 2.00 > Metadata ratio: 2.00 > Global reserve: 512.00MiB (used: 0.00B) > > Data,RAID10: Size:10.72TiB, Used:10.71TiB This is saying you have 10.72T of data. But because it's raid10, it will take up 2x that much space. This is what's reflected by the Overall: Used: value of 21.45T, plus some extra for metadata which is also 2x. -- Chris Murphy -- 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
