На сервере 3 диска
монтируются сюда:
/dev/ad0s1b             none            swap    sw              0       0
/dev/ad0s1a             /               ufs     rw              1       1
/dev/ad0s1d             /tmp            ufs     rw              2       2
/dev/ad0s1e             /usr            ufs     rw              2       2
/dev/ad0s1f             /var            ufs     rw              2       2
/dev/ad6s1d             /usr/ftp        ufs     rw              2       2
/dev/ad4s1d             /usr/ftp/Music  ufs     rw              2       2
/dev/acd0               /cdrom          cd9660  ro,noauto       0       0

в один прекрасный момент фря упала (вероятно скачок питания)

при загрузке пишет такое:
"SMP: AP CPU #l Launched?
CEOH: ad4: the primary GPl table it corrupt or invalid
GEOH: ad4: using the secondary instead - recovery strongly advised
Trying to mount root from ufsvdev/ad0sla
Loading configuration files.
kernel dumps on /dev/ad0slb
Entropy harvesting: interrupts ethernet point_to_point kickstart.
swapon: adding /dev/ad0slb as swap device
Starting file system checks:
/dev/ad0sla: FILE SYSTEM CLEAN; SKIPPING CHECKS
/dev/ad0sla: clean, 51192 free (2568 frags, 6079 blocks, 1.0% fragmentation)
/dev/ad0sle: DEFER FOR BACKGROUND -CHECK INC
/dev/ad0slf:  DEFER FOR BACKGROUND CHECKING
/dev/ad0sld: DEFER FOR BACKGROUND CHECKING
/dev/ad0sld: FILE SYSTEM CLEAN; SKIPPING CHECKS
/dev/ad0sld: clean, 290713 free (17 frags, 36337 blocks, 8.0% fragmentation)
/dev/ad6sld: PARTIALLY TRUNCATED INODE 1-73859151
/dev/ad6sld: UNEXPECTED SOFT UPDATE INCONSISTENT; RUN fsck MANUALLY.
THE FOLLOWING FILE SYSTEM HAD AN UNEXPECTED INCONSISTENCY:
ufs: /dev/ad6sld (/usr/ftp) Autonatic file system check failed; help! ERROR: ABORTING BOOT (sending SIGTERH to parent)!
Sep 22 2264:41 init: /bin/sh on /etc/rc terminated abnormally, going to single user mode    
Enter full pathname of shell or RETURN for /bin/sh: |"

если нажать Ctrl+C при выпаде ошибок, фря стартует, но не монтирует 2 из 3х дисков :(
/dev/ad6s1d             /usr/ftp - выпал
/dev/ad4s1d             /usr/ftp/Music - выпал

если нечего не нажимать, то замирает на
"Sep 22 2264:41 init: /bin/sh on /etc/rc terminated abnormally, going to single user mode    
Enter full pathname of shell or RETURN for /bin/sh: |"
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не могу понять что произошло и как его лечить :(