By default, Lightroom stores the backups on my boot drive which is a relatively small SSD. I want the backups to go to one of my larger auxiliary drives. Currently, I have to manually transfer the backup.
I have a Lightroom 6.4 on a Mac Pro, running 10.9.5.
When the dialog box pops up that asks you if you want to make backup of your catalog file, there is an option that allows you to specify the location of the backup.
The time you are exiting Lightroom, you may change the Location from the Window that pop up.
Thank you to both of you! I searched through all of the preferences but it never occurred to me to wait until I do the backup. I knew I had set it up at some point in the past. I'm not sure how or why it got changed, but my backups began going to the wrong place. I appreciate your help.