Encrypted backups/snapshots RN102

First, I think if you want to use this combination of features that you will be better off with a RN300 series. I'm not sure of the performance you'll see (since I don't use encryption). But encryption will slow things down. I've seen some posts that say the performance hit is 50%: https://www.readynas.com/forum/viewtopi ... 21&t=75345 The full volume is encrypted, and I believe that snapshots and all other BTRFS features are supported. All disks need to be the same size if you use encryption. Also, you need to keep a USB thumb drive in the NAS to hold the encryption key for the drive.

I don't believe you can encrypt the USB/esata drive, since encryption is set up when the internal disk volume is created.

The built-in backup tools copy files, supporting linux copy (cp), rsync, ftp, cifs (windows), or NFS. Incremental backup is supported - in the case of windows, changed files can be detected by either the archive bit or timestamp.

Personally I use the backup tool to back up the NAS itself (to another NAS). I use Acronis TrueImage to backup the PCs to the NAS. Acronis supports encrypted backups and incremental backups without needing encryption in the NAS itself - and since the encryption is done in the PC there is no performance hit in the NAS. So that might be worth looking at.