Get yourself a Xeon powered workstation that supports at least 4 drives. One will be your boot system drive and three or more will be a ZFS mirror. You will use ECC RAM (hence Xeon). I bought a Lenovo workstation like this for $35 on eBay.
ZFS with a three way mirror will be incredibly unlikely to fail. You only need one drive for your data to survive.
Then get a second setup exactly like this for your backup server. I use rsnapshot for that.
For your third copy you can use S3 like a block device, which means you can use an encrypted file system. Use FreeBSD for your base OS.
ZFS with a three way mirror will be incredibly unlikely to fail. You only need one drive for your data to survive.
Then get a second setup exactly like this for your backup server. I use rsnapshot for that.
For your third copy you can use S3 like a block device, which means you can use an encrypted file system. Use FreeBSD for your base OS.