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Robin Green
Robin Green

Reputation: 33083

Ensure that docker is using device-mapper storage backend

Docker 0.7 introduces multiple storage backends, and one of them is devicemapper. How can I check which storage backend it is using, and force it to use devicemapper if it is not already?

Upvotes: 11

Views: 2452

Answers (1)

Robin Green
Robin Green

Reputation: 33083

To check which one it is currently using:

sudo docker info|grep 'Storage Driver:'

You can force docker to use devicemapper by adding -s=devicemapper to the docker daemon's command line arguments (the docker daemon will be run as a service on boot, so this will involve modifying a file in /etc, probably /etc/default/docker, or if that doesn't exist, /etc/sysconfig/docker).

Upvotes: 14

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