[NTLUG:Discuss] "Web site temporarily offline"

Wayne Walker wwalker at bybent.com
Sun Apr 19 12:10:43 CDT 2009


On Sun, Apr 19, 2009 at 09:25:08AM -0500, David Simmons wrote:
> 
> 
> > I have my main web stuff on a VM and occasionally, I like to run backups
> > of the VM but it takes at least 20 minutes.  During that down time, I
> > would like to have another machine detect when the server is down and
> > assume the server's IP address so that it can say "Web site down for
> > maintenance.  Be back soon!"
> > 
> > I imagine running a small VM that would run whatever processes needed.
> > 
> > Anyone know any magic tricks to accomplish this?

The question you asked its how to show "site down".  I'd rather answer:

How can I backup my server without it going down?

I highly recommend that you use logical volume snapshots, eith in the
VM guest ot on the VM host so that you can just create a snapshot, let
the server continue to run while you backup from a read only snapshot,
then drop the snapshot.

-- 

Wayne Walker
wwalker at bybent.com



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