Modifying the schedules for collecting metadata

You can modify the schedules that collect metadata about monitored storage systems, switch chassis, and hosts.

About this task

Metadata is automatically collected when a device is added for monitoring. For subsequent metadata collection, the following schedules are used:
  • Status, configuration, and capacity metadata are collected by probes and aggregated once every 24 hours.
    • For DS8000 storage systems and their pools, the value for used capacity is collected once every hour. To customize that interval, contact IBM® Support.
    • For some devices, additional probes are automatically run when specific events occur on those devices, or when many events are detected in a short time period. To avoid performance bottlenecks in those cases, probes are not run more than once every 20 minutes.
  • Performance metadata is collected by performance monitors at the following intervals:
    • Every 5 minutes for IBM block storage systems
    • Every 5 minutes for Dell EMC Unity storage systems
    • Every 5 minutes for Hitachi VSP storage systems
    • Every 5 minutes for NetApp storage systems that are running ONTAP 9
    • Every 5 minutes for Pure storage systems
    • Every 15 minutes for other Dell EMC block storage systems.
    Restriction: Performance metadata is not collected for IBM Cloud Object Storage.

When you schedule probes for multiple resources, a time span is calculated during which the resources are probed. The resources are probed at different times during the time span.

Procedure

  1. Complete one of the following actions for the schedule that you want to update:
    Option Description
    Storage systems From the Resources menu, click Block Storage Systems, File Storage Systems, or Object Storage Systems.
    Switch chassis From the Resources menu, click Switches. Then, click Chassis.
    Hosts From the Resources menu, click Hosts.
  2. Select one or more devices.
  3. Right-click the device or devices and then click Data Collection > Schedule.
  4. To modify the schedule for probes in the Capacity section, click Manually and specify the time and frequency.
  5. To modify the schedule for performance monitors in the Performance section, select a frequency from the list.
    Before you can configure the data collection schedule for the performance monitor, the data collection for the probe must be scheduled.
  6. Click Save.

Results

If a successful probe run is completed for a storage system, the performance monitor runs according to the specified interval.