Docker Certified Associate Certification Training Course - Device Mapper

The video tutorial explains the Device Mapper's requirements, focusing on LVM mode and its loop back mechanism. It highlights potential IO operation slowdowns and race conditions. The tutorial provides steps to configure Device Mapper with Docker, emphasizing the importance of JSON format in configuration files.

What is the significance of the persistent data packages in the context of the device Mapper?

What are the potential issues that can arise from using loop back devices in the device Mapper configuration?

What is the purpose of the loop LVM mode in the device Mapper configuration?

What steps must be taken to configure the device Mapper after stopping the Docker service?

How can you verify that the storage driver has been correctly set to device Mapper?