There is this: http://www.datastax.com/dev/blog/whats-new-in-cassandra-1-1-flexible-data-file-placement
But you'll need to design your data model around the fact that this is only as granular as 1 column family Best, michael From: Kanwar Sangha <kan...@mavenir.com<mailto:kan...@mavenir.com>> Reply-To: "user@cassandra.apache.org<mailto:user@cassandra.apache.org>" <user@cassandra.apache.org<mailto:user@cassandra.apache.org>> Date: Monday, February 18, 2013 6:06 PM To: "user@cassandra.apache.org<mailto:user@cassandra.apache.org>" <user@cassandra.apache.org<mailto:user@cassandra.apache.org>> Subject: Cassandra backup Hi – We have a req to store around 90 days of data per user. Last 7 days of data is going to be accessed frequently. Is there a way we can have the recent data (7 days) in SSD and the rest of the data in the HDD ? Do we take a snapshot every 7 days and use a separate ‘archive’ cluster to serve the old data and a ‘active’ cluster to serve recent data ? Any links/thoughts would be helpful. Thanks, Kanwar
