Re: [Bacula-users] continuing a failed job

Thomas Mueller wrote:
> Am Wed, 06 Jan 2010 11:08:17 +0200 schrieb Silver Salonen:
> 
>> Hi.
>>
>> Has anyone figured out how to continue a failed job? I have a client
>> that has gigabytes of data, but very fragile internet connection, so
>> it's almost impossible to get a normal full backup job.
>>
>> I thought I'd do it with VirtualFull job to create a successful job out
>> of failed one and then use it as basis for incremental, but
>> unfortunately VirtualFull requires a previous successful job as well
>> (duh). Is there a way to mark a job successful?
> 
> you can't continue a failed job. 
> 
> this is a "known problem" with unstable internet connections. maybe you 
> can work around with openvpn (or something like that) to simply hide 
> short outages to bacula. 

My first inclination is to say that if the network connection to the
machine is sufficiently unstable that you can't complete a full backup,
you probably shouldn't be trying to back it up over the network.
However, there are ways to work around the problem.

Were I trying to work around such a situation, with a mission-critical
client on the far side of an unstable network connection, I would
probably create a local partition somewhere of the same size as the disk
on the remote machine, mirror the remote machine to that via rsync, and
then back up the local mirror.  The rsync will only need to transfer
small amounts of data each day, and with the way rsync works, if one
rsync is interrupted by a network outage, the next one will just pick up
where it left off.  Should you need to do a restore, you restore to the
local mirror, then rsync only the restored files back to the remote client.


-- 
  Phil Stracchino, CDK#2     DoD#299792458     ICBM: 43.5607, -71.355
  alaric AT caerllewys DOT net   alaric AT metrocast DOT net   phil AT 
co.ordinate DOT org
         Renaissance Man, Unix ronin, Perl hacker, Free Stater
                 It's not the years, it's the mileage.

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