Just an FYI, I love this plugin, but the recent version seems to be spawning numerous apache instances, most of them running tar. On our dedicated server, it slowed the site down to a crawl. Once I disabled the plugin and killed those processes, the site began loading at its normal, snappy speed. I had disabled all plugins and incrementally added them back in, and Snapshot appeared to be the culprit. It almost seems like it was stuck in a loop, running in the background. Also, strangely, I either did not have scheduled backups enabled, or it was occurring during a time when the scheduled backup was not set to run.
And today, I noticed the same behavior on a different site and server. Once I disabled it, the site loaded super fast again.
Anyhow, thought you'd like to know, as this is a great plugin and I install it on just about every site we build.