yes, you can. stop the cluster, change your hdfs-site.xml on your datanode. (dfs.datanode.dir) to the large volume. copy two small data volumes to the large volumes, which was configured on above. start cluster.
then you are done. On Tue, Oct 21, 2014 at 9:57 PM, Brian C. Huffman < bhuff...@etinternational.com> wrote: > All, > > Is it possible to consolidate two small data volumes (500GB each) into a > larger data volume (3TB)? > > I'm thinking that as long as the block file names and metadata are unique, > then I should be able to shut down the datanode and use something like tar > or rsync to copy the contents of each small volume to the large volume. > Will that work? > > Thanks, > Brian > >
