I have been looking into both of these technologies recently. Attic has the most attractive feature set of the backup management tools I have looked at (dedupl

I have been looking into both of these technologies recently. Attic has the most attractive feature set of the backup management tools I have looked at (deduplication and compression, support for remote repos, built in encryption, ability to mount repo as a FUSE file system), with the main downsides being that it is fairly new (and so just doesn't have as much testing as some of the older options) and its development model is not ideal. It is solely maintained by the original developer as a personal project and so when he is busy development stops. Recently, a handful of active community contributors started a fork (https://borgbackup.github.io/ https://borgbackup.github.io/) because of this. The original developer still seems committed to working on Attic when time permits, but I'd prefer to see a team of capable developers maintaining something I was relying for the integrity of my data. CrashPlan was the most attractive offsite backup solution because its price was competitive (similar to several other options, ~$6/month to backup one computer with no data size limit) and it provided cross-platform support for Windows, OS X, and Linux. I also like that it has a few different encryption options, including the option to generate your own encryption key that you do not share with CrashPlan. I am curious about your decision to encrypt your data before uploading with CrashPlan. Are you trying to avoid storing any unencrypted data on your NAS because it is more exposed to the internet? Or do you not trust CrashPlan with your data? I would think that using CrashPlan with a custom key would be fairly secure. If you don't trust CrashPlan in that case, you probably shouldn't install it on your machine at all. The CEO of CrashPlan has commented on double encrypting data (http://superuser.com/a/589686 http://superuser.com/a/589686). What is the restore process like when combining Attic and CrashPlan? I don't think CrashPlan has any file system mount option, so you would need to restore an entire Attic repo to recover any files from it, correct? I guess this is okay since you have the NAS to restore from for individual file backup and you only need to restore from CrashPlan in the case of catastrophic failure (the NAS dies entirely) when you would need to do a full restore. My current backup solution is an rsync script backing up to a remote machine I own. I previously used Bitcasa for offsite backup but was unhappy with the service and with the way the company kept changing its business model (shifted away from consumer cloud storage to a business / app market). I'd like to replace my rsync script with something more sophisticated like Attic and use another offsite option like CrashPlan.