@@ -68,8 +68,12 @@ CINDER_SERVICE_PROTOCOL=${CINDER_SERVICE_PROTOCOL:-$SERVICE_PROTOCOL}

 CINDER_SERVICE_LISTEN_ADDRESS=${CINDER_SERVICE_LISTEN_ADDRESS:-$SERVICE_LISTEN_ADDRESS}

 # What type of LVM device should Cinder use for LVM backend

-# Defaults to thin. For thick provisioning change to 'default'

-CINDER_LVM_TYPE=${CINDER_LVM_TYPE:-thin}

+# Defaults to default, which is thick, the other valid choice

+# is thin, which as the name implies utilizes lvm thin provisioning.

+# Thinly provisioned LVM volumes may be more efficient when using the Cinder

+# image cache, but there are also known race failures with volume snapshots

+# and thinly provisioned LVM volumes, see bug 1642111 for details.

+CINDER_LVM_TYPE=${CINDER_LVM_TYPE:-default}

 # Default backends

 # The backend format is type:name where type is one of the supported backend