[linux-lvm] Some LVM 2 questions.

[Rupert Hair]

I have noticed that a friend's LVM 2 vgdisplay does not show a MAX LV Size
value.  Should I take this to mean that LVM 2 does not impose a MAX LV Size
or that it it so large that it will not be an isssue?

I currently have a LVM 1.0.8 system that is nearing its MAX LV Size.  I
would like to know if I can migrate it to LVM 2 so that I can expand beyond
my MAX LV Size?  

I have four drives containing one linear VG and one LV on top of that
formatted as ext3.  Can I set LVM (1 or 2) to make a backup of the file
allocation tables (I'm not sure if that's the right term) of my ext3 system
onto all my drives so that if the first disk in my LV died I would not loose
all my data (just what was contained on that disk).

Thanks,

Rupert