Configuring cassandra : $HOME/conf/Cassandra.yaml

# Directories where Cassandra should store data on disk.  Cassandra
# will spread data evenly across them, subject to the granularity of
# the configured compaction strategy.
# If not set, the default directory is $CASSANDRA_HOME/data/data.
# data_file_directories:
#     - /var/lib/cassandra/data
data_file_directories:
   - /Users/raj/workingdir/cassandra/data_file_directories/dir1
   - /Users/raj/workingdir/cassandra/data_file_directories/dir2
   
# 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: /Users/raj/workingdir/cassandra/saved_caches_directory