We covered the details of the CoreOS partition table in Chapter 3, CoreOS Autoupdate. The following screenshot shows the default partitioning in the AWS CoreOS cluster:
By default, CoreOS uses root partitioning for the Container filesystem. In the preceding table,
/dev/xvda9 will be used to store Container images.
Following output shows Docker using Ext4 filesystem with Overlay storage driver in a CoreOS node running in AWS:
To get extra storage, external storage can be mounted in CoreOS.
Amazon Elastic ...