Hi, I've got a server where I have 4x8TB Disks in a BTRFS RAID5 (metadata and systemdata as RAID1) configuration. It's just a backup server with data I can always recreate. This server is in the bedroom, so I send it to sleep/suspend when I go to bed and then wake it up in the morning. Since a scrub takes days on such a setup, I issue a btrfs scrub resume whenever the server wakes up again. btrfs scrub status shows me that the total data to scrub is 18.67TB, but it's already scrubbed 36.60TB. Is there any way I can calculate how much more data is going to be scrubbed? 4x8TB is 32TB, so we're passed that, but I'm guessing this also has to do with parity data as well.
