Monitor BTRFS Disk

Periodically checks the data integrity on the disk and reports the results by e-mail.

Install

1. Copy credentials.sh.example and modify accordingly.
2. ./install.sh

Other Examinations:

Finding the corrupted files

sudo btrfs scrub start -B /path/to/mountpoint # -> you should already have done that
./get-corrupted-files.sh

See https://unix.stackexchange.com/q/557213/65781

Determine Physical Disk Health

sudo smartctl -t long -C /dev/sdX
sudo badblocks -v /dev/sdX

TODO: Document how to interpret the smartctl results.
TODO2: Add the conversation link from BTRFS mailing list with the subject "Is it logical to use a disk that scrub fails but smartctl succeeds?"

"DRDY ERR" check:

sudo dmesg | grep "DRDY ERR"