--- a/conf/cassandra.yaml
+++ b/conf/cassandra.yaml
@@ -203,8 +203,8 @@ partitioner: org.apache.cassandra.dht.Murmur3Partitioner
 # directories are specified, Cassandra will spread data evenly across
 # them by partitioning the token ranges.
 # If not set, the default directory is $CASSANDRA_HOME/data/data.
-# data_file_directories:
-#     - /var/lib/cassandra/data
+data_file_directories:
+    - /var/lib/cassandra/data

 # Directory were Cassandra should store the data of the local system keyspaces.
 # By default Cassandra will store the data of the local system keyspaces in the first of the data directories specified
@@ -216,7 +216,7 @@ partitioner: org.apache.cassandra.dht.Murmur3Partitioner
 # commit log.  when running on magnetic HDD, this should be a
 # separate spindle than the data directories.
 # If not set, the default directory is $CASSANDRA_HOME/data/commitlog.
-# commitlog_directory: /var/lib/cassandra/commitlog
+commitlog_directory: /var/lib/cassandra/commitlog

 # Enable / disable CDC functionality on a per-node basis. This modifies the logic used
 # for write path allocation rejection (standard: never reject. cdc: reject Mutation
@@ -379,7 +379,7 @@ counter_cache_save_period: 7200

 # saved caches
 # If not set, the default directory is $CASSANDRA_HOME/data/saved_caches.
-# saved_caches_directory: /var/lib/cassandra/saved_caches
+saved_caches_directory: /var/lib/cassandra/saved_caches

 # commitlog_sync may be either "periodic", "group", or "batch."
 #
