elasticsearch/docs/reference/tab-widgets/data-tiers.asciidoc

// tag::cloud[]
. Log in to the {ess-trial}[{ess} Console].

. Add or select your deployment from the {ess} home page or the deployments
page.

. From your deployment menu, select **Edit deployment**.

. To enable a data tier, click **Add capacity**.

experimental:[] **Frozen tier** 

The frozen tier is not yet available on {ess}. However, you can follow these
steps to effectively recreate a frozen tier in your deployment:

. Choose an existing tier to use. You'll typically use the cold tier, but the
hot and warm tiers are also supported. You can use this tier as a shared tier,
or use it exclusively as a frozen tier.

. On the **Edit deployment** page, click **Edit elasticsearch.yml** for your
chosen tier.

. In the `elasticsearch.yml` configuration, set
<<searchable-snapshots-shared-cache,`xpack.searchable.snapshot.shared_cache.size`>>
to up to 90% of available disk space. The tier uses this space to
create a <<shared-cache,shared, fixed-size cache>> for
<<searchable-snapshots,searchable snapshots>>.
+
[source,yaml]
----
xpack.searchable.snapshot.shared_cache.size: 50GB
----

. Click **Save** and **Confirm** to apply your changes.

**Enable autoscaling**

{cloud}/ec-autoscaling.html[Autoscaling] automatically adjusts your deployment's
capacity to meet your storage needs. To enable autoscaling, select **Autoscale
this deployment** on the **Edit deployment** page. Autoscaling is only available
for {ess}.
// end::cloud[]

// tag::self-managed[]
To assign a node to a data tier, add the respective <<node-roles,node role>> to
the node's `elasticsearch.yml` file. Changing an existing node's roles requires
a <<restart-cluster-rolling,rolling restart>>.

[source,yaml]
----
# Hot tier
node.roles: [ data_hot ]

# Warm tier
node.roles: [ data_warm ]

# Cold tier
node.roles: [ data_cold ]

# Frozen tier
node.roles: [ data_frozen ]
----

experimental:[] For nodes in the frozen tier, set
<<searchable-snapshots-shared-cache,`xpack.searchable.snapshot.shared_cache.size`>>
to up to 90% of the node's available disk space. The frozen tier uses this space
to create a <<shared-cache,shared, fixed-size cache>> for
<<searchable-snapshots,searchable snapshots>>.

[source,yaml]
----
node.roles: [ data_frozen ]
xpack.searchable.snapshot.shared_cache.size: 50GB
----

If needed, you can assign a node to more than one tier.

[source,yaml]
----
node.roles: [ data_hot, data_warm ]
----

Assign your nodes any other roles needed for your cluster. For example, a small
cluster may have nodes with multiple roles.

[source,yaml]
----
node.roles: [ master, ingest, ml, data_hot, transform ]
----
// end::self-managed[]