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by cpuguy83
3513 days ago
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Yes. The filesystem in the container is a real filesystem backed by the disk. How this happens is dependent on the storage driver used.
The `aufs` driver (default when available), as well as `overlay(2)` and `vfs` drivers just sit on top of the existing filesystem at `/var/lib/docker` (or the defined docker root).
BTRFS, ZFS, and devicemapper must be pre-configured to even use and depends on how you configure these, but still generally would be on an actual disk. |
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