Known limitations in Azure
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The following known limitations are specific to Cloud Volumes ONTAP in Microsoft Azure. Be sure to also review Limitations in all cloud providers.
Flash Cache limitations
The Standard_L8s_v2 VM type includes local NVMe storage, which Cloud Volumes ONTAP uses as Flash Cache. Note the following limitations for Flash Cache:
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Compression must be disabled on all volumes to take advantage of the Flash Cache performance improvements.
You can choose no storage efficiency when creating a volume from Cloud Manager, or you can create a volume and then disable data compression by using the CLI.
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Cache rewarming after a reboot is not supported with Cloud Volumes ONTAP.
HA limitations
The following limitations affect Cloud Volumes ONTAP HA pairs in Microsoft Azure:
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NFSv4 isn't supported. NFSv3 is supported.
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HA pairs aren't supported in some regions.