Enabling and disabling QOS

This topic lists the commands to enable and disable QOS.

The periodic scans run by the ibmobjectizer service are resource intensive and might affect the object IO performance. Quality Of Service (QOS) can be set on the ibmobjectizer service depending upon the IO workload and the priority at which the ibmobjectizer service must be run. The usage of resources is limited to the given number so that other high priority workflows and processes can continue with adequate resources, thereby maintaining the performance of the system.

  • To enable QOS, type mmchqos <fs> --enable.
  • Set the qos_iops_target parameter in the spectrum-scale-objectizer.conf file.
    The following example is on one line:
    mmobj config change --ccrfile spectrum-scale-objectizer.conf --section DEFAULT --property
qos_iops_target --value 400
  • To disable QOS on ibmobjectizer, set the qos_iops_target to 0.
    The following example is on one line:
    mmobj config change --ccrfile spectrum-scale-objectizer.conf --section DEFAULT --property
qos_iops_target --value 0