It boiled down to that: - fsck in background massively slowed i/o and full fsck before starting system is actually preferred/faster for most cases. -- View this message in context: http://freebsd.1045724.n5.nabble.com/fsck-ufs-running-too-often-tp5720964p5721380.html Sent from the freebsd-stable mailing list archive at Nabble.com.