Cradle

The CRADLE is a location in the show Westworld.

“	The simulation technology that stores and tests all of our storylines: the Cradle. Delos' time capsule that ensures you get the immersive and dynamic experience you deserve.	”
– Official description

CR4-DL

CR4-DL, a.k.a. CRADLE

Room CR4-DL, known colloquially as the CRADLE, is a colocation server farm located in Mesa Hub.

The Cradle contains the most important intellectual properly (IP) of Westworld and its associated parks, as it stores complete copies of the programming and memories for every host, as well as the programming for the park environments.

Externally, the Cradle appears to be nothing more than a massive array of water-cooled servers and storage units, but within the rows of servers the Cradle houses a self-contained virtual park environment, down to the last detail.

This information can be used as a backup ... should a host's control unit be damaged and unrecoverable, a new copy of the host's memories and programming can be downloaded from the Cradle to new control unit and inserted with the host's body. In addition, the virtual environment can be used to run simulations for narratives and training purposes.

Access to the Cradle's virtual environment is normally possible from authorized control terminals throughout Mesa Hub, but events leading up to Season 2 Episode 6 have taken the Cradle offline, and the Cradle's own control software has been actively blocking any attempts at establishing an interface from any terminal.

Terminal control interface indicating Cradle's offline status

Determined to find out why the Cradle software is "improvising" in this manner, Elsie Hughes and Bernard Lowe conclude that the only possible means of accessing the Cradle's software requires entering CR4-DL, removing Bernard's control unit, and interfacing it directly to the server farm via an onsite physical reader.

The extraction of control units from the host involves computer-controlled robotic surgery, but the equipment in the Cradle was designed for older-model hosts prior to Bernard's version. Hence, the process is painful and unpleasant for him.

While the Cradle holds copies of all extant park and host programming and data, Bernard discovers during his interface session that Robert Ford managed to plant a virtual version of himself within the software, hidden from Delos executives and personnel.