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Bug 1290487 Added section on overlayfs #4969

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bfallonf merged 1 commit into from
Aug 21, 2017
Merged

Bug 1290487 Added section on overlayfs #4969

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18 changes: 18 additions & 0 deletions install_config/install/prerequisites.adoc
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Expand Up @@ -199,6 +199,24 @@ SELINUX=enforcing
SELINUXTYPE=targeted
----

[discrete]
[[install-prerequisites-overlayfs]]
=== Using OverlayFS

OverlayFS is a union file system that allows you to overlay one file system on
top of another.

As of Red Hat Enterprise Linux 7.4, you have the option to configure your
{product-title} environment to use OverlayFS. The `overlay2` graph driver is
fully supported in addition to the older `overlay` driver. However, Red Hat
recommends using `overlay2` instead of `overlay`, because of its speed and
simple implementation.

See the
link:https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux_atomic_host/7/html-single/managing_containers/#overlay_graph_driver[Overlay
Graph Driver] section of the Atomic Host documentation for instructions on how
to to enable the `overlay2` graph driver for the Docker service.

[[prereq-NTP]]
=== NTP

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