List disks for a hortonworks node

# cat /var/lib/ambari-agent/data/datanode/dfs_data_dir_mount.hist

# This file keeps track of the last known mount-point for each dir.
# It is safe to delete, since it will get regenerated the next time that the component of the service starts.
# However, it is not advised to delete this file since Ambari may
# re-create a dir that used to be mounted on a drive but is now mounted on the root.
# Comments begin with a hash (#) symbol
# dir,mount_point
/grid/3/hadoop/hdfs/data,/grid/3
/grid/11/hadoop/hdfs/data,/grid/11
/grid/8/hadoop/hdfs/data,/grid/8
/grid/10/hadoop/hdfs/data,/grid/10
/grid/12/hadoop/hdfs/data,/grid/12
/hadoop/hdfs/data,/
/grid/6/hadoop/hdfs/data,/grid/6
/grid/4/hadoop/hdfs/data,/grid/4
/grid/2/hadoop/hdfs/data,/grid/2
/grid/5/hadoop/hdfs/data,/grid/5
/var/hadoop/hdfs/data,/var
/grid/1/hadoop/hdfs/data,/grid/1
/opt/hadoop/hdfs/data,/opt
/usr/hdp/hadoop/hdfs/data,/usr/hdp
/grid/9/hadoop/hdfs/data,/grid/9
/grid/7/hadoop/hdfs/data,/grid/7
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