Types of workloads monitored by Unified Manager

You can use Unified Manager to monitor the performance of two types of workloads: user-defined and system-defined.

User-defined workloads
The I/O throughput from applications to the cluster. These are processes involved in read and write requests. A FlexVol volume or FlexGroup volume is a user-defined workload.
Note: Unified Manager only monitors the workload activity on the cluster. It does not monitor the applications, the clients, or the paths between the applications and the cluster.
Unified Manager requires that the volumes you want to monitor be in a QoS policy group:
  • When using ONTAP 8.3 or later, a policy group is assigned to all volumes, either by the administrator or by ONTAP.
  • When using ONTAP 8.2.x, a policy group is assigned to all volumes, either by the administrator or by Unified Manager when the cluster is added to the UI. When Unified Manager analyzes the cluster for configuration changes every 15 minutes, it adds any new volumes not in a policy group to the default policy group.
Note: With ONTAP 8.2.x, if an SVM, LUN, or File storage object is in a policy group, Unified Manager cannot monitor the volumes contained in that object and the overall analysis is impacted. You must remove the storage object from the policy group to correct this issue.
If one or more of the following is true for a workload, it cannot be monitored by Unified Manager:
  • It is a data protection (DP) copy in read-only mode. (Note that when using ONTAP 8.3 and later, DP volumes are monitored for user-generated traffic.)
  • It is an Infinite Volume.
  • It is an offline data clone.
  • It is a mirrored volume in a MetroCluster configuration.
System-defined workloads
The internal processes involved with storage efficiency, data replication, and system health, including:
  • Storage efficiency, such as deduplication
  • Disk health, which includes RAID reconstruct, disk scrubbing, and so on
  • Data replication, such as SnapMirror copies
  • Management activities
  • File system health, which includes various WAFL activities
  • File system scanners, such as WAFL scan
  • Copy offload, such as offloaded storage efficiency operations from VMware hosts
  • System health, such as volume moves, data compression, and so on
  • Unmonitored volumes

Performance data for system-defined workloads is displayed in the GUI only when the cluster component used by these workloads is in contention. For example, you cannot search for the name of a system-defined workload to view its performance data in the GUI. If multiple system-defined workloads of the same type are displayed, a letter is appended to the workload name. The letter is intended for use by support personnel.