Hugo Mills <hugo <at> carfax.org.uk> writes: > > On Mon, Apr 27, 2015 at 10:34:42PM +0500, Roman Mamedov wrote: > > On Mon, 27 Apr 2015 14:55:49 +0000 > > Hugo Mills <hugo <at> carfax.org.uk> wrote: > > > > > > This is strange considering that I wanted a consistent snapshot of > > > > entire btrfs filesystem at volume level. > > > > > > > > Is there a way to achive this? or btrfs just cannot provide? > > > > > > No, there's no way to manage it with the current btrfs code. > > > > Why not. fsfreeze, dd to a file (optionally with compression), unfreeze. > > OK, point taken, but if you want to use the frozen volume to make a > file-level backup of the FS contents, you've still got to turn it into > a block device and mount it... at which point, you get hit by the > explosion again... > > Hugo. > If I am not wrong, chunk tree represents the allocaiton block of entire file system. I could copy and replicate ( which will be less time consume) on alternate disk(s). For this kind of backup, either lvm level consistency or freeze/thaw would help. -- 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
