Check out this doc, I think it may help you: http://www.datastax.com/documentation/cassandra/2.0/cassandra/operations/ops_backup_restore_c.html
*Best Regards!* *Chao Yan--------------**My twitter:Andy Yan @yanchao727 <https://twitter.com/yanchao727>* *My Weibo:http://weibo.com/herewearenow <http://weibo.com/herewearenow>--------------* 2015-01-18 21:06 GMT+08:00 孔嘉林 <kongjiali...@gmail.com>: > Hi, > I want to backup the files needed for data restoring/data migration. There > are several directories: > /var/lib/cassandra/ > - commitlog/ > - data/ > - mytable/ > - system/ > - system_traces/ > - saved_caches/ > /var/log/cassandra/ > > So if I want a new machine start cassandra service on having the old data, > which of the files are needed? Is only the > "/var/lib/cassandra/data/mytable/" directory enough? Or I should copy all > of the above files on the new machine? > > Thanks very much, > Joy >