LVM questions for FC3

[Mark]

Hi,

I have some questions regarding the use of logical volumes with FC3 systems:

1. What happens if a LV spans over mutliple hard disks and one of the disks fails while the server is running?
Can the server still keep on running on the other disks as long as no data from the broken disk is needed? Or does everything just
crash once one of the disks dies? As an extreme case, lets assume the broken disk does not contain any files or directories that are
used at all.

2. How big is the performance loss? Obviously, an additional layer in the file system hierarchy does mean additional mapping and
handling, meaning additional processor usage, meaning performance loss. In most cases this probably does not matter, but what if I
use the server for example as a mysql database server?

Thanks,

MARK