Server IP recognition

[twalters at bhsroe.k12.il.us]

Last weekend we had a major power outage and my frontier-Manila server 
shut down.  This is the fifth time this has happened.
Every time I reboot the machine, Manila doesn't associate its databases 
with the server ip address.  Short of reinstalling the whole package, 
and then transferring the old sites onto the new sites, is there any 
other way to get this problem solved?  I live in an area where long 
power outages are a problem...the server is on a fifteen minute ups but 
it doesn't help when power is out for over four hours at a time.
Reinstalling the software and then transferring the site takes about a 
day too, and time is an issue here.  Can anyone help?  Also if I have to 
reinstall the software is there a faster way to restore an entire 
database of users besides going to each users account, unistalling and 
reinstalling in the new website root?

Sincerely,

Tammy