> The largest failure was with btrfs — after a reboot, a 50 TB filesystem (in mirror, for backups) simply stopped working. No more mounting possible. Data was lost, but I had further backups. The client was informed and understood the situation. Within a few days, the server was rebuilt from scratch on FreeBSD with ZFS — since then, I haven’t lost a single bit.
As someone who admins a lot of btrfs, it seems very unlikely that this was unrecoverable. btrfs gets itself into scary situations, but also gets itself out again with a little effort.
In this instance “I solve problems” meant “I blow away the problem and start fresh”. Always easier! Glad the client was so understanding.
As someone who admins a lot of btrfs, it seems very unlikely that this was unrecoverable. btrfs gets itself into scary situations, but also gets itself out again with a little effort.
In this instance “I solve problems” meant “I blow away the problem and start fresh”. Always easier! Glad the client was so understanding.