I just needed to upvote you for creating Arq. For a developer it's easy to guess at what it's going to do and it doesn't ever seem to do anything it shouldn't.

I just needed to upvote you for creating Arq. For a developer it's easy to guess at what it's going to do and it doesn't ever seem to do anything it shouldn't. There is one question I've had about it. I keep everything in Glacier (about 700GB, I think). My understanding is that nothing is deleted from Glacier. If I deleted a whole backup set and then re-added it, would it upload the content again? Also, I'm keeping an eye on http://www.filosync.com http://www.filosync.com and I'm planning on trying it out soon. We currently run aerofs which is mostly really good - but sometimes we get into a situation (of our own making, we run it on an aws spot instance that can vanish) and sorting it out is hard work (and time consuming). The most frustrating aspect is that we don't know how it works, so we don't know what to expect when we perform certain operations. Sometimes it doesn't work how we expect and that bites us (I'm currently waiting for 12GB to sync - even though all the machines already have all the content). Given my (really positive) experiences with Arq I'd like to try a product that was a bit more open about how it worked.