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Vserver : Storage > Volumes : Managing volumes : Assigning volumes to Storage QoS
Assigning volumes to Storage QoS
You can limit the throughput of FlexVol volumes and monitor workload performance by assigning the volumes to Storage Quality of Service (QoS) group policies. You can enable Storage QoS for new volumes or modify Storage QoS details for volumes that are already assigned to a group policy.
About this task 
•
You can enable Storage QoS only for read-write (rw) volumes that are online.
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You cannot enable Storage QoS for a volume if the parent Storage Virtual Machine (SVM) or child LUNs of the volume are assigned to another group policy.
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You can enable Storage QoS or modify QoS details for a maximum of ten volumes at one time.
Steps 
1.
From the home page, double-click the appropriate storage system.
2.
Expand the Storage Virtual Machines hierarchy in the left navigation pane.
3.
In the navigation pane, select the SVM and click Storage > Volumes or Infinite Volumes.
4.
Select one or more volumes for which you want to enable Storage QoS.
5.
Click Storage QoS.
6.
In the Quality of Service Details dialog box, you can either create a new group policy or select an existing group policy and modify the specified maximum throughput.
If you have selected multiple volumes, some of the volumes might already be assigned to a group policy. Therefore, changes that you make might affect the performance of these volumes. You can click Discard to review the list of volumes and remove the appropriate volume.
7.
Click OK.

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