If your device is getting too many open files this can be fixed by doing 1 of these 3 options:

Option 1:

Have several smaller protected items so you are not processing over 20 million files at a time.

Option 2:

Tell Backup Intelligence to rescan unchanged files, but this slows down the backup.

Option 3:

The other option is to raise the limit built into Apple macOSX using the commands below which are ONLY for Apple macOSX 10.12 or higher.

Copy the file which you can download from here https://www.dropbox.com/s/aaag0fqw9409bsm/limit.maxfiles.plist?dl=0 , to this location on your device:

/Library/LaunchDaemons/

Then in Terminal run

sudo chown root /Library/LaunchDaemons/limit.maxfiles.plist

To set ownership of the file to root

Then run

sudo chmod 755 /Library/LaunchDaemons/limit.maxfiles.plist

Which makes the file executable

Then run

sudo launchctl load -w /Library/LaunchDaemons/limit.maxfiles.plist

Which executes the file

You can then run,

launchctl limit maxfiles

The sizes should show 524288 and 524288

This change will also stick after a reboot thanks to the file saved above.

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