Do we have files of the same name and size where the content changes? Or can i skip the checksumming and just let rsync chose which files to update based upon their size?
I’m almost certain you can use that flag, though I would make sure to copy the databases the last time without that flag, with the node stopped. The pieces themselves shouldn’t change.
The database shouldn’t be the same size either i wouldn’t think, but agreed its worth the extra step.
Usually no, most are only written to and not updated. But it’s worth the extra precaution as it could in theory happen.