Change docker image storage location to SSD on your NVIDIA Xavier

1. Install a SSD on the device and give it a mount name [1]

2. Copy docker to the SSD mount folder and add "data-root" parameter in the daemon script. [2]

$ sudo service docker stop

$ sudo rsync -aP /var/lib/docker/ /path/to/your/docker

$ gedit /etc/docker/daemon.json

$ sudo mv /var/lib/docker /var/lib/docker.old

$ sudo service docker start

3. Pull PyTorch container and run [3]

$ docker pull nvcr.io/nvidia/l4t-pytorch:r32.6.1-pth1.9-py3

$ sudo docker run -it --rm --runtime nvidia --network host -v /home/user/project:/location/in/container nvcr.io/nvidia/l4t-pytorch:r32.6.1-pth1.9-py3

Another useful commands: 

$ sudo docker info

$ sudo docker images

$ sudo rmi REPOSITORY:TAG [4]

$ cat /etc/nv_tegra_release

$ systemctl start docker

Reference:

[1] Install Solid State Disk - Jetson AGX Xavier 

[2] https://forums.developer.nvidia.com/t/change-docker-image-storage-location-to-nvme-ssd/156882

[3] docker pull nvcr.io/nvidia/l4t-pytorch:r32.6.1-pth1.9-py3

[4] https://docs.docker.com/engine/reference/commandline/rmi/

[5] https://linuxconfig.org/how-to-move-docker-s-default-var-lib-docker-to-another-directory-on-ubuntu-debian-linux

[6] https://www.guguweb.com/2019/02/07/how-to-move-docker-data-directory-to-another-location-on-ubuntu/