Hi, I was using reflinks to create snapshots of an XFS filesystem; however, I’m looking for ways to determine the unique snapshot usage or perform snapshot accounting. We tried using filefrag, but it doesn’t help when editing files with vi, as vi changes the block numbers with every write operation. This causes the snapshot accounting to show unique blocks even though there are shared blocks with the original file. Can anyone suggest a better method for snapshot accounting on XFS? Thanks in advance for your help! Thanks!
