I’m a very happy customer of CrashPlan. Offsite backup is a critical component of any backup plan!
Without advanced¹ filesystems² like btrfs³, maintaining up-to-date backups is an arduous task. CrashPlan’s fire-and-forget nature lifts that weight from my shoulders, freeing my mind & time. Better yet, CrashPlan supports Windows & Linux.
However, like many large-scale cross-platform programs, it’s far from perfect. There are many cases where certain files fail to backup, where scanning for files slows the entire computer to a grinding halt, backups take longer than they should, file upload is not fully utilizing available bandwidth, or memory usage seems inordinate.
Fortunately, CrashPlan has a mature logging infrastructure. Code42 provides some insight on their website (mirror). If you investigate these logs, you’ll notice that they (a) are marked as a logging “level” (ERROR, WARN, INFO, DEBUG, TRACE, ALL, OFF), and (b) are categorized.
For (a), CrashPlan PROe “ADMINISTRATION CONSOLE COMMAND-LINE INTERFACE OVERVIEW“(mirror) suggests that the levels are actually [Error, Warn, Info, Fine, Trace], but I’ve never seen ‘Fine’ in the home edition.
For (b), the aforementioned document says only “The complete list of options is available by contacting our Customer Champions.”.