Display MoreEasiest way to do that, is to set your "main" drive (Drive A).. this will house all your data for services, etc. Then set up a "backup" drive (Drive B)... set up a simple rsync job in the webUI to backup Drive A, to Drive B. Getting the timing down correctly can be tricky.
I run several rsync jobs automatically. I have one job that backs up to a 2nd drive on my NAS... that runs every 8hrs. I personally leave the delete trigger off, that way if something is accidentally deleted, it stays on my 2nd drive. Once or twice a month I'll log in and enable the delete trigger and run the job manually, to bring Drive A and Drive B completely in sync.
Every day at 3am, a job runs that backs up my NAS's "Drive B" to a remote single drive OMV at my parents house. This job has the delete trigger enabled at all times.. so it is always in sync with "Drive B"
I have another job that then runs at 4am, that backs up just movies/tv shows from my Mom's, to another another remote single drive OMV at my sisters. That also has a simple SMB share, and she uses an android TV box and Kodi to watch whatever stuff she or her kids want.
It was simple to set up and once it's up it pretty much runs w/o any input from me.
So what would happen when i want to expand and add a drive for more storage? Would i need to buy 2 instead of 1 and have 1 as the backup drive and the other as main 2?