Amanda backup routine

[Gerald Combs]

On 8 Jan 2003, Brad Crotchett wrote:

> Both servers are on the same 100MB switched network.  I never thought about 
> rsync, but that may be a better way to go.  I assume rsync just syncs up 
> specified directories between the servers?  Is it pretty fast?

It's pretty fast.  In the past I've used it to sync multigigabyte
partitions over 100 Mbps connections.  It did this every two hours without
affecting the server load too heavily.  The replication algorithm it uses
is pretty efficient.

> Gerald wrote:
> > 
> > It should be possible to do this with Amanda.  You could use amrestore to
> > read the backup for server1, and feed the output to tar/restore on
> > server2.  AFAIK, amrestore doesn't care what Amanda configuration name
> > you're using so that shouldn't be an issue.
> > 
> > How much bandwidth is available between server1 and server2?  Rsync might
> > be a better solution:
> > 
> >     http://rsync.samba.org/
> > 
> > With rsync there would be fewer moving parts (literally!), and you could
> > sync more than once a day.
> > 
> > 
> > > This way if server1 crashes, server2 can come online and not be more
> > > than 24 hours outdated with respect to server1.  I am just wondering how
> > > to tell amanda to use the tape from one amanda config to be used in the
> > > restore of another amanda config.  I am sure amanda's db is going to say
> > > that this is the wrong tape.  Maybe I can use a flag that forces amanda
> > > to use the specified tape?  Or maybe there is a way to do this with one
> > > amanda config?
> > > 
> > > Any thoughts or comments are appreciated.
> > > 
> > > Thanks,
> > > 
> > > Brad
> > > 
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