I have been trying to use the PowerShell script made available at https://bitbucket.org/atlassianlabs/automatic-cloud-backup/src/master/, and it works fine for downloading the backup without attachments (sized at less than 1GB) but when I change the script to download with attachments (bigger than 30GB), it obviously runs out of memory.
I have been doing some research and I'm guessing I have to change the way of downloading from the one on the script to something that doesn't need to use the memory available and starts streaming the file directly to the disk.
Any ideas?