We are looking to do electronic based backups across our WAN and I need recommendations on software. We do not want to outsouce. The goal is to duplicate the benefits of our tape based backup solution and enhance upon it.
Here are the details -
1. We are a windows shop.
2. Remote office has a 1MB Internet connection.
3. We need to keep file history, meaning, we cannot just copy the latest version of a file to the alternate location. We need the ability to restore a few versions back. Just like with tape, we don't just have last nights tape, we have every night for the past week, then monthends for the past 6 months. So, if a user screws up a file on Tuesday, but doesn't realize it until Friday, we can still restore Monday's version.
4. Ideally I would like a disk/block based backup solution so if a user changes a 500Meg file by adding a comma, the whole file doesn't have to be transmitted over the WAN again. Just what has changed. Some of the online providers offer this technology.
Thanks. Let me know if you need more info.