Le dimanche 15 mai 2011 Ã 19:28 +0200, Helmut Hullen a Ãcrit : > shows that that device with brutto 150 GByte is nearly full with its > 78 GByte (or 73 GByte) data because it uses this kind of RAID1? No. Here's the current situation on same machine : # btrfs fi df / Data: total=85.01GB, used=84.56GB System, DUP: total=8.00MB, used=16.00KB System: total=4.00MB, used=0.00 Metadata, DUP: total=1.75GB, used=1.01GB Metadata: total=8.00MB, used=0.00 As far as I understood, only metadata (not data) are DUPed, and the DATA zone is allocated as needed by 1GB chunks. So I currently use 84.5 GB and the system has thus allocated 85 GB of filesystem DATA space. When they get full, the system will allocate 1 more GB, etc. Until the device itself gets full, of course. You notice here that there's no indication about the device actual size (this df gives developper-useful data, not sysadmin-useful data ;-)) but this file system resides in : # mount /dev/mapper/VG1-TETHYS on / type btrfs (rw,relatime,subvol=UBUNTU,compress=zlib) [...] # lvs VG1/TETHYS LV VG Attr LSize Origin Snap% Move Log Copy% Convert TETHYS VG1 -wi-ao 145,66g -- 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
