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[ukchris]

Just bought a pair of DNS-320's and stuck 2 1TB drives in each.

What I want to do, which from what I have read is possible is have one in the office, and one at home.

At a scheduled time each day, I would like to backup the office NAS to the one at home. The one at home will only be used for the backup purpose.

I have run through the setup, forwarded all ports etc. I can get the backup to run ok, but I seem to be missing an option in the setup wizard ? I presume that as the device uses rync it would do incremental backups. I did the initial setup in the office (both on same lan) so the first backup would be nice and quick, then moved it to home. In the help it mentions a tick box for incremental backup num# ....... i don't have this listed anywhere.

The problem is I need to back this box up each night, and there is no way it can do a full 30gb backup every night, i need to get it to just do changes ? any ideas ?

[ukchris]

in one of the FAQ's I have just read, it says they recommend doing the 'initial' backup locally

this would indicate that regardless of the incremental tick box that I don't seem to have, each subsequent backup in the schedule would be incremental by default anyway ?....... i think.

[ukchris]

Answered my own question.

Firstly it was differential rather than incremental I wanted to achieve.

After the first backup ran, I ran it again manually, and it took only a few minutes. To test whether it would track changes to documents/data rather than just if a file existed I edited one of the documents and ran it again. Took slightly longer than the second time, but worked fine. The updated file was replaced at the remote end, everything working fine now.

It looks as though by default, it will always do differential backups.

Would be nice to have some kind of log though for a completed or failed backup. I set email alerts up in the wizard process, but nothing for remote backups is available that I can find.

Maybe in newer firmware ?

For now I will schedule a local batch file on a pc to create a file called todays date in a folder on the local NAS. This as it is new should be copied to the remote NAS. The log folder with dated files in on the remote end could be used to identify working.failed backups.

[JavaLawyer]

I'm glad you were able to work things out.  You can also use backup software running off your PC (I use Syncback) to perform comparisons of the source and destination data to see if what you copied is in fact a true copy or if there are any differences.

[dns-320.user]

could you post your backup configuration? I'm struggling to get your same kind of configuration to work http://forums.dlink.com/index.php?topic=50428.0 Are you using static WAN IPs on both ends?