SSD harddrive appears to have died on my home network's RPi 4 DNS server and for some stupid reason not a single device automatically started using the secondary. Whats the point in a secondary if nothing bloody uses it!
The family was not amused at the downtime. Made much harder to diagnose by the RPi being headless.
If anyone has advice on recovering a BTRFS superblock from an LVM I'd appreciate it.