paultom wrote:I've been working on a feature documentary for the last 2 years, and the first backup of the day always takes ages, while the subsequent backups take a few seconds. I'm now on version 20 on a Mac Studio M4 and the backup just took 2mins 50 seconds. It's a little frustrating - because when you open the project each day you're keen to get going, but after a few minutes, the backup kicks in – but now that I'm used to it, I go and make a tea.
Are you using a single timeline? Is everything in the documentary in a single project?
Worst case, especially for really large, complicated projects with hundreds of hours of source material, I'd suggest doing a few things:
1) Media Manage it and get rid of any files that aren't being used.
2) if you're in the middle of an edit, of course you can keep the files that are still being edited
3) keep the timelines as short and simple as possible. As an example, you could have one two hour show broken up into 5 or 6 acts, each about 25 minutes long. I think you'll find this will save much faster.
4) once the edit is absolutely locked, then you can rebuild one big "super timeline" of the entire show as a single render.
I definitely suggest you make multiple backups and do them manually every day. Don't just rely on the automatic backups -- make manual backups on removable drives that you can keep in a safe place.
For many years, I stayed away from long complicated timelines because they caused Resolve to bog down. In the last couple of years, I think this problem has been greatly improved, and I have started using 2-hour timelines without any performance speed issues.