Boniforti Flavio wrote:
>> How often do you want to backup the server?  What about using 
>> rsync to backup the pool?  I want to mirror my primary backup 
>> server to another system daily so I can switch to my backup 
>> server quickly.  I was going to use rsync for this.
> 
> Well, backing it up once a day would be ok for me too. You will use
> rsync because it handles hardlinks, am I right?
> My goal is the same as yours: switch immediately onto another server if
> my BackupPC server dies.
> 
> Can you tell us about your results when you set it up?

If you want a 'live' backup on a nearby machine you might look at drbd 
which is sort of like raid over the network.  If you don't need 
auto-failover, though, you can get fairly high availability with normal 
RAID1 in a chassis with swappable drives.  In the fairly likely event of 
a single disk failure, you just swap in a new drive and rebuild the 
mirror.  In the less likely event of a motherboard component failure you 
  yank the drives and move them to a spare chassis that you've kept for 
that purpose.  It is still a good idea to have offsite copies of the 
archive in case of a building disaster or a software or operator error 
that destroys the running copy.

Rsync may work - depending on the size of your archive and the amount of 
RAM you have.

-- 
  Les Mikesell
   lesmikesell AT gmail DOT com

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