[gentoo-user] Help running fsck on reiserfs lvm /var on production server?

[Tanstaafl]

Hi everyone,

What is best practice for doing this?

If I reboot in single user mode, will my lvm volumes (ie, /var) be 
available for fsck'ing, or do I have to mount them first?

The current problem started after a different problem required me to do 
a hard reset on the server - had to do with a mounted QNAP device being 
unavailable when I initiated a reboot, and everything just hung.

Ever since I did this hard reset, the server hangs at unmounting /var. 
I've let it sit there for at least an hour, and it never goes past that.

Then after I hard reset it, it fsck's /var partition again, maybe fixes 
minor problems very quickly, and everything works fine until I have to 
reboot or shutdown again.

This became a major problem this weekend when we had one extended power 
outage (about 8 hours) yesterday evening, then another one (about 4 
hours) this morning right after I got everything back up and running 
from last nights outage.

Anyway, I need to do this this weened if at all possible, so...

Anyone have any pointers to detailed docs and or willing to hold my hand 
through this a little?

Thanks,

Charles