About Apache Flume FileChannel by Brock Noland.
From the post:
This blog post is about Apache Flume’s File Channel. Apache Flume is a distributed, reliable, and available service for efficiently collecting, aggregating, and moving large amounts of log data. It has a simple and flexible architecture based on streaming data flows It is robust and fault tolerant with tunable reliability mechanisms and many failover and recovery mechanisms. It uses a simple extensible data model that allows for online analytic application.
FileChannel is a persistent Flume channel that supports writing to multiple disks in parallel and encryption.
Just in case you are one of those folks with large amounts of data to move about.