Kevin Oberman wrote:

[...]

Current has two major changes re speeding up fsck.

The most significant is the background operation of fsck on file
system with soft updates enabled. Because of the way softupdates
works, you are assured of metadata consistency on reboot, so the file
systems can be mounted and used immediately with fsck started up in
the background about a minute after the system comes up.

Be careful what you promise :-) Most new disks have an own disk cache and some of them have a write cache enabled. In case of a hardware failure (or power failure) this data may get lost and the disk's metadata isn't consistent. It's only when no write cache below the system is active.

Jens

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