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Very low WRITE throughput on CVO instance
https://kb.netapp.com/Cloud/Cloud_Volumes_ONTAP/Very_low_WRITE_throughput_on_CVO_instance
Applies to Azure: Cloud Volumes ONTAP ONTAP: 9.7P5 CVO instance Standard_DS5_v2 with premium SSDs and fast write mode enabled Issue Extremely low throughput and high latency on a volume running on sin...Applies to Azure: Cloud Volumes ONTAP ONTAP: 9.7P5 CVO instance Standard_DS5_v2 with premium SSDs and fast write mode enabled Issue Extremely low throughput and high latency on a volume running on single CVO instance with Fast Write Mode and premium SSD aggregate. Write throughput of 30MB/s was much less than expected throughput.
What Inline Storage Efficiency features are supported with CVO?
https://kb.netapp.com/Cloud/Cloud_Volumes_ONTAP/What_Inline_Storage_Efficiency_features_are_supported_with_CVO
NetApp Cloud Volumes ONTAP 9.11.1x (CVO) Inline Storage Efficiency (ISE) Single Instance Data Logging (SIDL) Inline Inline (8K) CVO (SIDL on) VNVRAM enabled (High Write speed off & SIDL off) CVO (High...NetApp Cloud Volumes ONTAP 9.11.1x (CVO) Inline Storage Efficiency (ISE) Single Instance Data Logging (SIDL) Inline Inline (8K) CVO (SIDL on) VNVRAM enabled (High Write speed off & SIDL off) CVO (High Write Spead on) Inline dedupe or any other Storage Efficiency improvements are not allowed on Azure HA page blob. For managed disks on Cloud Volumes ONTAP in Azure, inline storage efficiency settings are replaced by the default settings of Temperature sensitive storage efficiency (TSSE).