I'm building a 4-disk unRAID box and would like to backup my OS SSD and Data HDD to it.  Some features I'd like to have are; scheduled backups, incremental/syncing backup, ability to control number of stored backups/automatic backup trimming.  Is there any free/cheap software that can do this?





Currently I have my OS+Apps on my SSD, data/games on my HDD, and DeltaCopy is incrementally syncing that Data HDD to another HDD for some redundancy.   My most important files on that HDD are backed up on a free iDrive account and that will still be the case after I move over to this image/NAS backup solution.



The unRAID box is a LaCie Ethernet Disk(1u) and will have 4x 1-2TB WD Reds in it and unRAID running off of a low-profile USB flash drive.



 

You're gonna find it difficult to get something that does all that for free.

FreeNAS

DD, chron and perl would get the job done.

Also look at xpenology, Unraid,and nas4free

I have the NAS box software covered.  I'm going with unRAID as mentioned in my first post.

Interesting.  The thought had crossed my mind concerning a backup for my own raid at home.  Could you please update your progress?  Good luck and I hope it works for you.