it# fsck -n ad0s3g
** /dev/ad0s3g (NO WRITE)
** Last Mounted on /mnt/home
** Phase 1 - Check Blocks and Sizes
cannot alloc 4216257920 bytes for inoinfo

UNEXPECTED SOFT UPDATE INCONSISTENCY
UNKNOWN FILE TYPE I=47104
UNEXPECTED SOFT UPDATE INCONSISTENCY
fsck: /dev/ad0s3g: Segmentation fault