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Hello, is it possible to set nodatacow on a per-file basis? I couldn''t find anything. If not, wouldn''t that be a great feature to get around the performance issues with VM and database storage? Of course cloning should still cause COW. Thanks, Ralf-Peter -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to

I've just tried putting usr in a subvol. Installation proceeds normally, no errors, but I'm dropped to a dracut prompt which indicates mount of /usr failed. dmesg follows: [ 14.025215] systemd[1]: Starting dracut initqueue hook... [ 14.077890] Btrfs loaded [ 14.129987] device label fedora_f18v devid 1 transid 31 /dev/sda1 [ 14.313607] device label fedora_f18v devid 1 transid 31

Hello If I want to manage a complete disk with btrfs, what''s the "Best Practice"? Would it be best to create the btrfs filesystem on "/dev/sdb", or would it be better to create just one partition from start to end and then do "mkfs.btrfs /dev/sdb1"? Would the same recomendation hold true, if we''re talking about huge disks, like 4TB or so?

Hello, On a newly created filesystem with btrfs-progs-git-20111009 and the 3.1.0-rc8 kernel I am getting the following error when doing btrfsck after main OS installation fs tree 256 refs 2 unresolved ref root 256 dir 256 index 2 namelen 8 name __active error 600 found 4215058432 bytes used err is 1 total csum bytes: 3962760 total tree bytes: 157192192 total fs tree bytes: 146976768