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Merge pull request #7897 from adamancini/patch-11 

Update device-mapper-driver.md
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L-Hudson 2018-12-20 08:35:10 -05:00 committed by GitHub
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storage/storagedriver/device-mapper-driver.md
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@ -807,6 +807,14 @@ storage driver.
by thin provisioning and copy-on-write. Volumes have other benefits, such as
allowing you to share data among containers and persisting even when no
running container is using them.
- **Note**: when using `devicemapper` and the `json-file` log driver, the log
files generated by a container are still stored in Docker's dataroot directory,
by default `/var/lib/docker`. If your containers generate lots of log messages,
this may lead to increased disk usage or the inability to manage your system due
to a full disk. You can configure a
[log driver](/config/containers/logging/configure.md) to store your container
logs externally.
## Related Information