Did you know that…
You can easily assign a LUN or file to an adaptive quality-of-service (QoS) policy?
Complete the following step in the NetApp ONTAP CLI:
There are three default adaptive QoS policies in ONTAP as well as the ability to create custom policies:
::> qos adaptive-policy-group show
Name Vserver Wklds IOPS IOPS
---- ------- ----- -------- ----
extreme cluster 0 6144IOPS/TB 12288IOPS/TB
performance cluster 0 2048IOPS/TB 4096IOPS/TB
value cluster 0 128IOPS/TB 512IOPS/TB
Note: When a LUN or file is assigned to an adaptive QoS policy, the IOPS allocated is set based on the size and the amount of space used.
For a 1TB LUN assigned to the performance policy, the floor and ceiling start at 2,048 IOPS. As more space is used in the LUN the ceiling increases automatically to a maximum of 4,096 IOPS.
For a small LUN, a fixed absolute minimum number of IOPS is allocated. For example, if a 20GB LUN is assigned to the performance policy, the floor and ceiling are set to 500 IOPS.
The three default adaptive QoS policies provide the following absolute minimum number of IOPS:
For more information about ONTAP, visit the ONTAP 9 Documentation Center.