Control and monitor I/O performance to FlexVol volumes by using Storage QoS
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You can control input/output (I/O) performance to FlexVol volumes by assigning volumes to Storage QoS policy groups. You might control I/O performance to ensure that workloads achieve specific performance objectives or to throttle a workload that negatively impacts other workloads.
Policy groups enforce a maximum throughput limit (for example, 100 MB/s). You can create a policy group without specifying a maximum throughput, which enables you to monitor performance before you control the workload.
You can also assign SVMs, LUNs, and files to policy groups.
Note the following requirements about assigning a volume to a policy group:
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The volume must be contained by the SVM to which the policy group belongs.
You specify the SVM when you create the policy group.
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If you assign a volume to a policy group, then you cannot assign the volume's containing SVM or any child LUNs or files to a policy group.
For more information about how to use Storage QoS, see the System Administration Reference.
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Use the
qos policy-group create
command to create a policy group. -
Use the
volume create
command or thevolume modify
command with the-qos-policy-group
parameter to assign a volume to a policy group. -
Use the
qos statistics
commands to view performance data. -
If necessary, use the
qos policy-group modify
command to adjust the policy group's maximum throughput limit.