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.