Endless Data Loss

[CeDeROM]

UFS2 SU+J has failed me several times as well. I also ocassionaly
experienced root filesystem corruption that prevented valid boot. Even on a
fresh install and new hardware I consider UFS2 SU+J unreliable.. I am not
sure why this got into production :-(

Performing forced fsck on a SU+J filesystem that was considered clean in J
revealed inconsistency on fsck.

Try to disable SU+J, maybe only J as mentioned in other reply. I will try
that too.

Try ZFS for good consistency. Or wait/force full fsck before system is up.

Also, take a look at hard drive details - manufacturer and series (i.e. WD
RED, BLACK, GREEN) - they can have totally different firmware with badblock
correction that may cause troubles as well.

Best regards :-)
Tomek

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CeDeROM, SQ7MHZ, http://www.tomek.cedro.info