The best way is to just backup to multiple locations and actively manage it. RAID at the backup destination is nice because it means that if a disk fails, you don’t immediately lose everything there. But if you have multiple places where that data lives then it’s not the end of the world to just re-create the backup.
If you want to get into true archival solutions(way more expensive than setting up a RAID) then you’re looking at things like M-Disc and LTO tape
I went M-Disc. Need a special burner and disks cost me $30NZD each or about $18USD for 100GB.
They are write once (I fucked up two early on) but they should last 100+ years. I burnt about 1TB, and made two copies (one for offsite storage). It was not cheap.
The best way is to just backup to multiple locations and actively manage it. RAID at the backup destination is nice because it means that if a disk fails, you don’t immediately lose everything there. But if you have multiple places where that data lives then it’s not the end of the world to just re-create the backup.
If you want to get into true archival solutions(way more expensive than setting up a RAID) then you’re looking at things like M-Disc and LTO tape
I went M-Disc. Need a special burner and disks cost me $30NZD each or about $18USD for 100GB.
They are write once (I fucked up two early on) but they should last 100+ years. I burnt about 1TB, and made two copies (one for offsite storage). It was not cheap.