Hi Andre,   For detailed checking disk performance you find here appropriate testing procedures: https://docs.cloudera.com/documentation/other/reference-architecture/PDF/cloudera_ref_arch_stg_dev_accept_criteria.pdf     Further good benchmark are here the TCP-DS tests for Impala: https://github.com/cloudera/impala-tpcds-kit and for Hive TCP-DS and TCP-H: https://github.com/hortonworks/hive-testbench   Also recommend to check network performance via Cloudera Manager by the function  Inspect Cluster Network Performance   Hope this helps, Regards Friedel        ... View more