<Are you running gbak from your local client machine against a remote <server/database and creating the backup file on your local machine? I If <so, this is not a good idea from a performance perspective.
I run the backup automatically each night (Windows scheduled tasks), for a few of my customers, via the Internet. And yes, I need the backup file locally, on my system. As I mentioned before, if the backup lasts for 10 minutes of which log_tables takes 9 , no problem at all, FireBird works like a charm for me (with Delphi XE5), I was just asking why this huge difference between backing up tables with or without BLOB tables. Tiberiu
