diff --git a/defaults/main.yml b/defaults/main.yml
index 5cb8d45c..c3d43679 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -135,6 +135,16 @@ swift_allow_all_users: False
 # If you want to regenerate the swift keys, on a run, for rsync purposes set this var to True otherwise keys will be generated on the first run and not regenerated each run.
 swift_recreate_keys: False
 swift_sorting_method: shuffle
+# Set the fallocate_reserve value which will reserve space and fail on PUTs above this value in bytes (Default 10GB)
+swift_fallocate_reserve: 10737418240
+swift_account_fallocate_reserve: "{{ swift_fallocate_reserve }}"
+swift_container_fallocate_reserve: "{{ swift_fallocate_reserve }}"
+swift_object_fallocate_reserve: "{{ swift_fallocate_reserve }}"
+# Set this to true to disable fallocate
+swift_disable_fallocate: false
+swift_account_disable_fallocate: "{{ swift_disable_fallocate }}"
+swift_container_disable_fallocate: "{{ swift_disable_fallocate }}"
+swift_object_disable_fallocate: "{{ swift_disable_fallocate }}"
 
 ## Swift ceilometer variables
 swift_reselleradmin_role: ResellerAdmin
diff --git a/releasenotes/notes/swift-fallocate-reserve-ff513025da68bfed.yaml b/releasenotes/notes/swift-fallocate-reserve-ff513025da68bfed.yaml
new file mode 100644
index 00000000..eda9e921
--- /dev/null
+++ b/releasenotes/notes/swift-fallocate-reserve-ff513025da68bfed.yaml
@@ -0,0 +1,8 @@
+---
+features:
+  - Allow the fallocate_reserve option to be set (in
+    bytes) for Swift, to help prevent disks from filling
+    up and prevent a situation where Swift is unable to
+    remove objects due to a lack of disk space. The
+    fallocate_reserve value to is set to a default of
+    10GB.
diff --git a/templates/account-server.conf.j2 b/templates/account-server.conf.j2
index 411bf6cc..dc47ba45 100644
--- a/templates/account-server.conf.j2
+++ b/templates/account-server.conf.j2
@@ -13,6 +13,9 @@ devices = {{ swift_vars.mount_point | default(swift.mount_point) }}
 log_facility = LOG_LOCAL2
 {% include "statsd.j2" %}
 
+disable_fallocate = {{ swift_account_disable_fallocate }}
+fallocate_reserve = {{ swift_account_fallocate_reserve }}
+
 [pipeline:main]
 pipeline = healthcheck recon account-server
 
diff --git a/templates/container-server.conf.j2 b/templates/container-server.conf.j2
index 3445b6f9..b4a779cc 100644
--- a/templates/container-server.conf.j2
+++ b/templates/container-server.conf.j2
@@ -13,6 +13,9 @@ devices = {{ swift_vars.mount_point | default(swift.mount_point) }}
 log_facility = LOG_LOCAL3
 {% include "statsd.j2" %}
 
+disable_fallocate = {{ swift_container_disable_fallocate }}
+fallocate_reserve = {{ swift_container_fallocate_reserve }}
+
 [pipeline:main]
 pipeline = healthcheck recon container-server
 
diff --git a/templates/object-server.conf.j2 b/templates/object-server.conf.j2
index 15ee74bb..6a29cb90 100644
--- a/templates/object-server.conf.j2
+++ b/templates/object-server.conf.j2
@@ -14,6 +14,9 @@ devices = {{ swift_vars.mount_point | default(swift.mount_point) }}
 log_facility = LOG_LOCAL4
 {% include "statsd.j2" %}
 
+disable_fallocate = {{ swift_object_disable_fallocate }}
+fallocate_reserve = {{ swift_object_fallocate_reserve }}
+
 [pipeline:main]
 pipeline = healthcheck recon object-server