Any good tool for continous backup? [closed]

Anyone knows any good continuous backup software? I'm using Sonicwall appliances but I want to know if there are any good software solution for this.

Update 1: I'm referring to filesystem. Of course, any other tool like Oracle and so on have their own method.

Update 2: The sonicwall appliance looks continually for filesystem changes and archive them, also saves versions. This appliance is not working fine, a lot of bugs and no way to get nice support...


Solution 1:

Are you after a backup system (where you can recover previous version of files) or merely replication?

A few products come to mind:

  • Veritas Volume Replicator has the ability to replicate filesystems
  • Windows Volume Shadow Copies can be used for backups
  • Windows DFS can be used for replication
  • NetApp file servers can do both replication, and replication as a backup mechanism
  • ZFS filesystems can easily be replicated
  • Backup software companies like Bakbone and Symantec (among others), I'm sure) are able to do continuous live backups
  • rsync and related tools such as rsnapshot can do close to continuous depending on the requirements

On the consumer side of things, but also applicable for business, you'll find plenty of startups with new nifty cloud enabled tools that fit in the replication/backup realm:

  • CrashPlan
  • GetDropBox
  • SugarSync

I'm probably missing plenty more... Hope this helps!

Solution 2:

Have a look at DoubleTake. They got what you need if you can afford it.