storage.config(5) on Linux
The text 2a4ad5056f2e, as Debian 10 (Buster) shipped it.
Traffic Server cache storage configuration file The storage.config file (by default, located in /usr/local/etc/trafficserver/) lists all the files, directories, and/or hard disk partitions that make up the Traffic Server cache. After you modify the storage.config file the new settings will not be effective until Traffic Server is restarted.