The parameter to specify more than one path for storage in Hadoop is in hdfs-site.xml. Property: dfs.datanode.data.dir (Please verify) dfs.datanode.data.dir value can be any directory which is available on the datanode.It determines where on the local filesystem data node should store its blocks. It can be a directory where disk partitions are mounted like '/user1/hadoop/data, /user2/hadoop/data' which is in case if you have multiple disks partitions to be used for HDFS the purpose. When it has multiple values, data is copied to the HDFS in a round-robin fashion. If one of the directory's disk is full, round-robin data copy will continue on the rest of the directories. You can also define the Storage system in the HDFS for multiple locations Please refer below link. https://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.3.0/bk_hdfs_admin_tools/content/configuring_archival_storage.html
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