You can list all sources like this:
php artisan backup-server:list
Per source you'll see if it is healthy, the number of backups, the age of the latest backup, the total storage used, and more.
You can sort the sources like this:
php artisan backup-server:list --sortBy=healthy --desc
By default, the sources are sorted by name. Other options are id, healthy, backup_count, newest_backup, youngest_backup_size, backup_size and used_storage.
You can list all destinations with this command:
backup-server:list-destinations
Per destination you'll see if is healthy, the total capacity used, the percentage of inodes used, and more.