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[mattjtemp]

Might seem an odd question, but I have a DNS-320, with just 1 2TB disk in sat happy as larry on a home network, all working fine so far. I'm probably going to get a second 2TB disk for the second slot and was thinking of mirroring, however, if the 320 itself fails rather than the disks I'm concerned about losing the data when putting them into another drive.

I'd like to explore having the 2 2TB disks striped, and have a completely separate DNS-320 with 2 2TB disks in the same config and having these mirrored, or at least synchronising any changes during the late night or early hours.

I'm after some advice, is this practial, is there a better alternative, is there any good software to enable this?

Any comments most welcome.

[D-Link Multimedia]

Perfectly possible. There are two options for network mirroring. Either setup a schedule for backups using the local backup option and select LAN as the source. Or if you want to use the Remote backup option (which utilizes RSYNC and encryption) you can set this up to backup your nas locally or even remotely.

[mattjtemp]

Thanks for the reply, I'd seen the backup LAN option but assumed it would back up like Ghost or other backup type products, creating cab files and then carry multiple copies of either subsequent backups or possibly incremental backups, rather than an exact mirror of the folder and file system that I could simply browse to should the first NAS fail, is that not the case?

[Carlpea]

I use the below program to sync my internal hard drive to my DNS-320 so i'm sure you could do the same with two NAS devices:

http://allwaysync.com/

It's brilliant, easy to use, and best of all free!

You can set-up a schedule to sync every 30 minutes or when your pc starts or it can even monitor file changes on the fly and update within a 10 minute window.

You can also set it so that it either synchronizes one way so if you update on device the other updates or you can synchronise both ways so it doesn't matter which one you add data to.