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Change performance tier of Premium SSD disks in Cloud Volumes ONTAP in Azure

Contributors netapp-manini
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You can upgrade the performance tier of Premium SSD managed disks in Cloud Volumes ONTAP in Azure by using the Azure portal. This is a manual process that involves changing the disk tier of each Premium SSD disk to a higher performance tier. Changing the performance tier of your NVRAM disk can help alleviate performance bottlenecks and enhance the efficiency of your Cloud Volumes ONTAP system by providing higher IOPS and throughput capabilities.

Note Ensure that you work with NetApp support to determine that the bottleneck that you experience in your environment is due to the NVRAM disk, and upgrading the tier resolves the issue.
About this task

  • By default, Cloud Volumes ONTAP in Azure deploys Premium SSD disks for NVRAM in P20 tier. The P20 tier provides a balanced performance suitable for most workloads. However, if your workload demands higher performance, you can upgrade the NVRAM disk to a higher tier such as P30.

    Tip Currently, you can upgrade an NVRAM disk from P20 to P30 tier, only through the Azure portal.

  • You do not change the size of the disk. It continues to remain 512 GB. This procedure only changes the disk's performance tier.

Before you begin

  • Assess the need for this change carefully, because upgrading the NVRAM disk to a higher performance tier incurs additional costs.

  • Your Cloud Volumes ONTAP version must be 9.11.1 or later. For lower versions, you can upgrade to 9.11.1 or later, or raise a Feature Policy Variation Request (FPVR) with NetApp support.

Steps

This scenario assumes that there are two nodes node01 and node02 in the Cloud Volumes ONTAP high-availability (HA) deployment. Use the Azure portal to upgrade the tier.

  1. Run this command to make node1 the active node. Manually fail over node02.

    storage failover takeover -ofnode <Node02>

  2. Sign in to the Azure portal.

  3. When the takeover is complete, go to the VM instance for node02, and click the Stop button to switch it off.

  4. Navigate to the resource group for node02 and from the list of disks, select the NVRAM disk to change the tier.

  5. Select Size + Performance.

  6. In the Performance tier dropdown, select P30 - 5000 IOPS, 200MB/s.

  7. Select Resize.

  8. Switch on the node02 instance.

  9. Check the Azure serial console until you can see the message: waiting for giveback.

  10. Run this command to give back node02:

    storage failover giveback -ofnode <Node02>

  11. Repeat these steps on node01 to make node02 take over node01, so that you can upgrade the NVRAM disk tier for node01.

After you finish

When you have switched on both the nodes, verify the modified parameters by checking the disk details in the Azure portal for your Cloud Volumes ONTAP system.

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