Snapshots can be taken system-wide, or focused on a single keyspace or table. Invoking a snapshot is done very easily with nodetool. To take a snapshot for all tables in a specific keyspace, simply type the name of that keyspace on the end of the command:
nodetool snapshot packt_chapter3Requested creating snapshot(s) for [packt_chapter3] with snapshot name [1538941504326] and options {skipFlush=false}Snapshot directory: 1538941504326
To take a snapshot for a specific table, use the --table option. Follow that with the table and keyspace names:
nodetool snapshot --table security_logs_by_location packt_chapter3Requested creating snapshot(s) for [packt_chapter3] with snapshot name [1538941525101] and options {skipFlush=false} ...
